Make sure you have "ip multicast-routing" on both routers. On the router interfaces, make sure you have "ip pim sparse-mode" On both routers, make sure you have the same rp address assigned and that you can ping this ip address from both routers. (I prefer to make it a loopback interface) "ip pim rp-address w.x.y.z" Also, make sure that routing is setup on your routers so that your receiver can ping your sender. On your routers you should be able to see the source unicast address and multicast address by typing "show ip mroute" you should see something like this: (*, 239.192.3.47), 7w0d/00:02:59, RP 10.31.0.1, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: Port-channel15, Forward/Sparse, 7w0d/00:02:59, H (10.5.9.51, 239.192.3.47), 4w5d/00:03:27, flags: TA Incoming interface: Port-channel15, RPF nbr 10.7.193.138 Outgoing interface list: Port-channel17, Forward/Sparse, 4w5d/00:02:49, H On your switches, with igmp snooping enabled, you should be able to type: "show ip igmp snooping group" and see something like Vlan Group Type Version Port List ----------------------------------------------------------------------- 24 239.192.3.47 igmp v2 Gi1/0/21 That port listed is the port of the requester. -----Original Message----- I have setup a lab for this multicast. VLC receiver - 3560G - 1841 - 1841 - 4503 - VLC sender The 2 switches only provide L2 access, they have IGMP snooping active On both 1841's I have pim parse-mode & sap listen on all interfaces + configured a static RP, the one closest to the sender. With my VLC receiver I can see the channels via SAP, but when I join the multicast group I don't receive anything. Could someone help me to troubleshoot this? Thanks in advance, Rens
On May 21, 2010, at 10:52 AM, Jamie Sobczyk wrote:
With my VLC receiver I can see the channels via SAP, but when I join the multicast group I don't receive anything.
verify packets actually land on the receiver (tcpdump, etc) interface. verify that your host has a route for 224/4 pointing out the interface you hope joins are leaving from. ensure iptables isn't blocking either the outgoing igmp join, and make sure that it's permitting the incoming mcast-dest packets. if any of these are wrong/failing, then mcast won't work. -Tk
On May 21, 2010, at 10:52 AM, Jamie Sobczyk wrote:
On both routers, make sure you have the same rp address assigned and that you can ping this ip address from both routers. (I prefer to make it a loopback interface) "ip pim rp-address w.x.y.z"
I also add on the 'override' term at the end, because any auto-rp messages will be preferred over the static config unless you set override. - Jared
I have all those things you mentioned below. The VLC server (10.0.1.2) sends out 2 streams on 239.255.0.1 & 239.255.0.2 I see both in SAP, when I try to join 239.255.0.2, nothing happens in VLC and below you have the output of my routers & switches at that time: On my RP router I see for show ip mroute: (*, 239.255.255.255), 5d04h/00:03:26, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:26 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:41 (10.0.1.2, 239.255.255.255), 1d06h/00:03:28, flags: LT Incoming interface: FastEthernet0/0.200, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:26 (*, 239.255.0.2), 00:01:10/00:03:19, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:01:10/00:03:19 (*, 239.255.255.250), 00:07:19/00:03:07, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:07:22/00:03:03 (*, 239.195.255.255), 1d06h/00:02:39, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:01:24/00:02:39 (*, 224.2.127.254), 5d04h/00:03:10, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:10 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:38 (*, 224.0.1.40), 5d04h/00:02:40, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:02:59 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:40 On my other router I have: (*, 239.255.255.255), 5d04h/stopped, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:54 (10.0.1.2, 239.255.255.255), 1d06h/00:02:58, flags: LJT Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 1d06h/00:02:54 (*, 239.255.0.2), 00:01:55/00:02:56, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:01:55/00:02:56 (*, 239.255.255.250), 00:08:04/00:02:53, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:08:04/00:02:53 (*, 239.195.255.255), 5d04h/00:02:50, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:02:08/00:02:50 (*, 224.2.127.254), 5d04h/00:02:48, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:48 (*, 224.0.1.40), 5d04h/00:02:52, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:52 On the switch where the RP is connected: Vlan Group Version Port List --------------------------------------------------------- 200 224.0.1.40 v2 Gi2/24 200 224.2.127.254 v2 Gi2/24 200 239.255.255.255v2 Gi2/24 On the switch where the receiver is connected: Vlan Group Type Version Port List ----------------------------------------------------------------------- 200 224.0.1.40 igmp v2 Gi0/24 200 224.2.127.254 igmp v2 Gi0/1, Gi0/24 200 239.195.255.255 igmp v2 Gi0/1, Gi0/24 200 239.255.0.2 igmp v2 Gi0/1, Gi0/24 200 239.255.255.250 igmp v2 Gi0/2, Gi0/24 200 239.255.255.255 igmp v2 Gi0/1, Gi0/24 -----Original Message----- From: Jamie Sobczyk [mailto:lanson9@cox.net] Sent: vendredi 21 mai 2010 16:52 To: rens@autempspourmoi.be Cc: nanog@nanog.org Subject: RE: IPv4 Multicast Make sure you have "ip multicast-routing" on both routers. On the router interfaces, make sure you have "ip pim sparse-mode" On both routers, make sure you have the same rp address assigned and that you can ping this ip address from both routers. (I prefer to make it a loopback interface) "ip pim rp-address w.x.y.z" Also, make sure that routing is setup on your routers so that your receiver can ping your sender. On your routers you should be able to see the source unicast address and multicast address by typing "show ip mroute" you should see something like this: (*, 239.192.3.47), 7w0d/00:02:59, RP 10.31.0.1, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: Port-channel15, Forward/Sparse, 7w0d/00:02:59, H (10.5.9.51, 239.192.3.47), 4w5d/00:03:27, flags: TA Incoming interface: Port-channel15, RPF nbr 10.7.193.138 Outgoing interface list: Port-channel17, Forward/Sparse, 4w5d/00:02:49, H On your switches, with igmp snooping enabled, you should be able to type: "show ip igmp snooping group" and see something like Vlan Group Type Version Port List ----------------------------------------------------------------------- 24 239.192.3.47 igmp v2 Gi1/0/21 That port listed is the port of the requester. -----Original Message----- I have setup a lab for this multicast. VLC receiver - 3560G - 1841 - 1841 - 4503 - VLC sender The 2 switches only provide L2 access, they have IGMP snooping active On both 1841's I have pim parse-mode & sap listen on all interfaces + configured a static RP, the one closest to the sender. With my VLC receiver I can see the channels via SAP, but when I join the multicast group I don't receive anything. Could someone help me to troubleshoot this? Thanks in advance, Rens
Does "show ip mroute count" on the 1841 (RP) display activity on traffic counters? Is the VLC sender directing multicast to the 1841 (RP) thru a default route? Is the VLC sender issuing multicast packets with a high-enough multicast TTL ? Everton On Wed, May 26, 2010 at 10:21 AM, Rens <rens@autempspourmoi.be> wrote:
I have all those things you mentioned below. The VLC server (10.0.1.2) sends out 2 streams on 239.255.0.1 & 239.255.0.2 I see both in SAP, when I try to join 239.255.0.2, nothing happens in VLC and below you have the output of my routers & switches at that time:
On my RP router I see for show ip mroute:
(*, 239.255.255.255), 5d04h/00:03:26, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:26 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:41
(10.0.1.2, 239.255.255.255), 1d06h/00:03:28, flags: LT Incoming interface: FastEthernet0/0.200, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:26
(*, 239.255.0.2), 00:01:10/00:03:19, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:01:10/00:03:19
(*, 239.255.255.250), 00:07:19/00:03:07, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:07:22/00:03:03
(*, 239.195.255.255), 1d06h/00:02:39, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:01:24/00:02:39
(*, 224.2.127.254), 5d04h/00:03:10, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:10 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:38
(*, 224.0.1.40), 5d04h/00:02:40, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:02:59 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:40
On my other router I have:
(*, 239.255.255.255), 5d04h/stopped, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:54
(10.0.1.2, 239.255.255.255), 1d06h/00:02:58, flags: LJT Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 1d06h/00:02:54
(*, 239.255.0.2), 00:01:55/00:02:56, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:01:55/00:02:56
(*, 239.255.255.250), 00:08:04/00:02:53, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:08:04/00:02:53
(*, 239.195.255.255), 5d04h/00:02:50, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:02:08/00:02:50
(*, 224.2.127.254), 5d04h/00:02:48, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:48
(*, 224.0.1.40), 5d04h/00:02:52, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:52
On the switch where the RP is connected:
Vlan Group Version Port List --------------------------------------------------------- 200 224.0.1.40 v2 Gi2/24 200 224.2.127.254 v2 Gi2/24 200 239.255.255.255v2 Gi2/24
On the switch where the receiver is connected:
Vlan Group Type Version Port List ----------------------------------------------------------------------- 200 224.0.1.40 igmp v2 Gi0/24 200 224.2.127.254 igmp v2 Gi0/1, Gi0/24 200 239.195.255.255 igmp v2 Gi0/1, Gi0/24 200 239.255.0.2 igmp v2 Gi0/1, Gi0/24 200 239.255.255.250 igmp v2 Gi0/2, Gi0/24 200 239.255.255.255 igmp v2 Gi0/1, Gi0/24
-----Original Message----- From: Jamie Sobczyk [mailto:lanson9@cox.net] Sent: vendredi 21 mai 2010 16:52 To: rens@autempspourmoi.be Cc: nanog@nanog.org Subject: RE: IPv4 Multicast
Make sure you have "ip multicast-routing" on both routers.
On the router interfaces, make sure you have "ip pim sparse-mode"
On both routers, make sure you have the same rp address assigned and that you can ping this ip address from both routers. (I prefer to make it a loopback interface) "ip pim rp-address w.x.y.z"
Also, make sure that routing is setup on your routers so that your receiver can ping your sender.
On your routers you should be able to see the source unicast address and multicast address by typing "show ip mroute" you should see something like this: (*, 239.192.3.47), 7w0d/00:02:59, RP 10.31.0.1, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: Port-channel15, Forward/Sparse, 7w0d/00:02:59, H
(10.5.9.51, 239.192.3.47), 4w5d/00:03:27, flags: TA Incoming interface: Port-channel15, RPF nbr 10.7.193.138 Outgoing interface list: Port-channel17, Forward/Sparse, 4w5d/00:02:49, H
On your switches, with igmp snooping enabled, you should be able to type: "show ip igmp snooping group" and see something like Vlan Group Type Version Port List ----------------------------------------------------------------------- 24 239.192.3.47 igmp v2 Gi1/0/21 That port listed is the port of the requester.
-----Original Message----- I have setup a lab for this multicast.
VLC receiver - 3560G - 1841 - 1841 - 4503 - VLC sender
The 2 switches only provide L2 access, they have IGMP snooping active
On both 1841's I have pim parse-mode & sap listen on all interfaces + configured a static RP, the one closest to the sender.
With my VLC receiver I can see the channels via SAP, but when I join the multicast group I don't receive anything.
Could someone help me to troubleshoot this?
Thanks in advance,
Rens
Woot! It was the TTL on the VLC sender that was on default, changed it to 10 and now and I have my video. Thanks for your help. _____ From: Everton Marques [mailto:everton.marques@gmail.com] Sent: mercredi 26 mai 2010 15:42 To: Rens Cc: Jamie Sobczyk; nanog@nanog.org Subject: Re: IPv4 Multicast Does "show ip mroute count" on the 1841 (RP) display activity on traffic counters? Is the VLC sender directing multicast to the 1841 (RP) thru a default route? Is the VLC sender issuing multicast packets with a high-enough multicast TTL ? Everton On Wed, May 26, 2010 at 10:21 AM, Rens <rens@autempspourmoi.be> wrote: I have all those things you mentioned below. The VLC server (10.0.1.2) sends out 2 streams on 239.255.0.1 & 239.255.0.2 I see both in SAP, when I try to join 239.255.0.2, nothing happens in VLC and below you have the output of my routers & switches at that time: On my RP router I see for show ip mroute: (*, 239.255.255.255), 5d04h/00:03:26, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:26 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:41 (10.0.1.2, 239.255.255.255), 1d06h/00:03:28, flags: LT Incoming interface: FastEthernet0/0.200, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:26 (*, 239.255.0.2), 00:01:10/00:03:19, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:01:10/00:03:19 (*, 239.255.255.250), 00:07:19/00:03:07, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:07:22/00:03:03 (*, 239.195.255.255), 1d06h/00:02:39, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:01:24/00:02:39 (*, 224.2.127.254), 5d04h/00:03:10, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:10 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:38 (*, 224.0.1.40), 5d04h/00:02:40, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:02:59 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:40 On my other router I have: (*, 239.255.255.255), 5d04h/stopped, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:54 (10.0.1.2, 239.255.255.255), 1d06h/00:02:58, flags: LJT Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 1d06h/00:02:54 (*, 239.255.0.2), 00:01:55/00:02:56, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:01:55/00:02:56 (*, 239.255.255.250), 00:08:04/00:02:53, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:08:04/00:02:53 (*, 239.195.255.255), 5d04h/00:02:50, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:02:08/00:02:50 (*, 224.2.127.254), 5d04h/00:02:48, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:48 (*, 224.0.1.40), 5d04h/00:02:52, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:52 On the switch where the RP is connected: Vlan Group Version Port List --------------------------------------------------------- 200 224.0.1.40 v2 Gi2/24 200 224.2.127.254 v2 Gi2/24 200 239.255.255.255v2 Gi2/24 On the switch where the receiver is connected: Vlan Group Type Version Port List ----------------------------------------------------------------------- 200 224.0.1.40 igmp v2 Gi0/24 200 224.2.127.254 igmp v2 Gi0/1, Gi0/24 200 239.195.255.255 igmp v2 Gi0/1, Gi0/24 200 239.255.0.2 igmp v2 Gi0/1, Gi0/24 200 239.255.255.250 igmp v2 Gi0/2, Gi0/24 200 239.255.255.255 igmp v2 Gi0/1, Gi0/24 -----Original Message----- From: Jamie Sobczyk [mailto:lanson9@cox.net] Sent: vendredi 21 mai 2010 16:52 To: rens@autempspourmoi.be Cc: nanog@nanog.org Subject: RE: IPv4 Multicast Make sure you have "ip multicast-routing" on both routers. On the router interfaces, make sure you have "ip pim sparse-mode" On both routers, make sure you have the same rp address assigned and that you can ping this ip address from both routers. (I prefer to make it a loopback interface) "ip pim rp-address w.x.y.z" Also, make sure that routing is setup on your routers so that your receiver can ping your sender. On your routers you should be able to see the source unicast address and multicast address by typing "show ip mroute" you should see something like this: (*, 239.192.3.47), 7w0d/00:02:59, RP 10.31.0.1, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: Port-channel15, Forward/Sparse, 7w0d/00:02:59, H (10.5.9.51, 239.192.3.47), 4w5d/00:03:27, flags: TA Incoming interface: Port-channel15, RPF nbr 10.7.193.138 Outgoing interface list: Port-channel17, Forward/Sparse, 4w5d/00:02:49, H On your switches, with igmp snooping enabled, you should be able to type: "show ip igmp snooping group" and see something like Vlan Group Type Version Port List ----------------------------------------------------------------------- 24 239.192.3.47 igmp v2 Gi1/0/21 That port listed is the port of the requester. -----Original Message----- I have setup a lab for this multicast. VLC receiver - 3560G - 1841 - 1841 - 4503 - VLC sender The 2 switches only provide L2 access, they have IGMP snooping active On both 1841's I have pim parse-mode & sap listen on all interfaces + configured a static RP, the one closest to the sender. With my VLC receiver I can see the channels via SAP, but when I join the multicast group I don't receive anything. Could someone help me to troubleshoot this? Thanks in advance, Rens
One more question: If I would now connect another switch (WS-C3524-XL) between the VLC receiver and the 3560G like this: VLC receiver - 3524XL - 3560G - 1841 - 1841 - 4503 - VLC sender That 3524XL only supports CGMP, what do I need to change on the config to not broadcast this multicast traffic? Do I need to configure the ip cgmp router-only on the 1841 at Receiver? -----Original Message----- From: Rens [mailto:rens@autempspourmoi.be] Sent: mercredi 26 mai 2010 16:10 To: 'Everton Marques' Cc: nanog@nanog.org; 'Jamie Sobczyk' Subject: RE: IPv4 Multicast Woot! It was the TTL on the VLC sender that was on default, changed it to 10 and now and I have my video. Thanks for your help. _____ From: Everton Marques [mailto:everton.marques@gmail.com] Sent: mercredi 26 mai 2010 15:42 To: Rens Cc: Jamie Sobczyk; nanog@nanog.org Subject: Re: IPv4 Multicast Does "show ip mroute count" on the 1841 (RP) display activity on traffic counters? Is the VLC sender directing multicast to the 1841 (RP) thru a default route? Is the VLC sender issuing multicast packets with a high-enough multicast TTL ? Everton On Wed, May 26, 2010 at 10:21 AM, Rens <rens@autempspourmoi.be> wrote: I have all those things you mentioned below. The VLC server (10.0.1.2) sends out 2 streams on 239.255.0.1 & 239.255.0.2 I see both in SAP, when I try to join 239.255.0.2, nothing happens in VLC and below you have the output of my routers & switches at that time: On my RP router I see for show ip mroute: (*, 239.255.255.255), 5d04h/00:03:26, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:26 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:41 (10.0.1.2, 239.255.255.255), 1d06h/00:03:28, flags: LT Incoming interface: FastEthernet0/0.200, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:26 (*, 239.255.0.2), 00:01:10/00:03:19, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:01:10/00:03:19 (*, 239.255.255.250), 00:07:19/00:03:07, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:07:22/00:03:03 (*, 239.195.255.255), 1d06h/00:02:39, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:01:24/00:02:39 (*, 224.2.127.254), 5d04h/00:03:10, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:10 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:38 (*, 224.0.1.40), 5d04h/00:02:40, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:02:59 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:40 On my other router I have: (*, 239.255.255.255), 5d04h/stopped, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:54 (10.0.1.2, 239.255.255.255), 1d06h/00:02:58, flags: LJT Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 1d06h/00:02:54 (*, 239.255.0.2), 00:01:55/00:02:56, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:01:55/00:02:56 (*, 239.255.255.250), 00:08:04/00:02:53, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:08:04/00:02:53 (*, 239.195.255.255), 5d04h/00:02:50, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:02:08/00:02:50 (*, 224.2.127.254), 5d04h/00:02:48, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:48 (*, 224.0.1.40), 5d04h/00:02:52, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:52 On the switch where the RP is connected: Vlan Group Version Port List --------------------------------------------------------- 200 224.0.1.40 v2 Gi2/24 200 224.2.127.254 v2 Gi2/24 200 239.255.255.255v2 Gi2/24 On the switch where the receiver is connected: Vlan Group Type Version Port List ----------------------------------------------------------------------- 200 224.0.1.40 igmp v2 Gi0/24 200 224.2.127.254 igmp v2 Gi0/1, Gi0/24 200 239.195.255.255 igmp v2 Gi0/1, Gi0/24 200 239.255.0.2 igmp v2 Gi0/1, Gi0/24 200 239.255.255.250 igmp v2 Gi0/2, Gi0/24 200 239.255.255.255 igmp v2 Gi0/1, Gi0/24 -----Original Message----- From: Jamie Sobczyk [mailto:lanson9@cox.net] Sent: vendredi 21 mai 2010 16:52 To: rens@autempspourmoi.be Cc: nanog@nanog.org Subject: RE: IPv4 Multicast Make sure you have "ip multicast-routing" on both routers. On the router interfaces, make sure you have "ip pim sparse-mode" On both routers, make sure you have the same rp address assigned and that you can ping this ip address from both routers. (I prefer to make it a loopback interface) "ip pim rp-address w.x.y.z" Also, make sure that routing is setup on your routers so that your receiver can ping your sender. On your routers you should be able to see the source unicast address and multicast address by typing "show ip mroute" you should see something like this: (*, 239.192.3.47), 7w0d/00:02:59, RP 10.31.0.1, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: Port-channel15, Forward/Sparse, 7w0d/00:02:59, H (10.5.9.51, 239.192.3.47), 4w5d/00:03:27, flags: TA Incoming interface: Port-channel15, RPF nbr 10.7.193.138 Outgoing interface list: Port-channel17, Forward/Sparse, 4w5d/00:02:49, H On your switches, with igmp snooping enabled, you should be able to type: "show ip igmp snooping group" and see something like Vlan Group Type Version Port List ----------------------------------------------------------------------- 24 239.192.3.47 igmp v2 Gi1/0/21 That port listed is the port of the requester. -----Original Message----- I have setup a lab for this multicast. VLC receiver - 3560G - 1841 - 1841 - 4503 - VLC sender The 2 switches only provide L2 access, they have IGMP snooping active On both 1841's I have pim parse-mode & sap listen on all interfaces + configured a static RP, the one closest to the sender. With my VLC receiver I can see the channels via SAP, but when I join the multicast group I don't receive anything. Could someone help me to troubleshoot this? Thanks in advance, Rens
We have been struggling to locate someone at AT&T that handles the txt.att.net servers. We have clients in our data center that can no longer send emails to mobile phones via 10digit@txt.att.net. We have contacted AT&T and they say there is no problem on their end. We can ping the server, but simply cannot connect to port 25. We have checked all firewalls of each client. Some ranges of IPs work and others don't. Looking for someone with a clue who can assist. Mike Walter
On Wed, May 26, 2010 at 11:17 AM, Mike Walter <mwalter@3z.net> wrote:
We have been struggling to locate someone at AT&T that handles the txt.att.net servers. We have clients in our data center that can no longer send emails to mobile phones via 10digit@txt.att.net. We have contacted AT&T and they say there is no problem on their end. We can ping the server, but simply cannot connect to port 25. We have checked all firewalls of each client. Some ranges of IPs work and others don't. Looking for someone with a clue who can assist.
this is not a guaranteed service, nor does it have an official SLA, and inbound mail/connections from louder speakers are often just dropped, either at the TCP layer, or at the application layer (even after what seems like a completed SMTP conversation.) If you depend upon SMS for things, smtp -> sms gateways at the provider aren't reliable enough.
Something weird today when I did some more tests today... When I configured a subinterface with the: ip pim sparse-mode (config)#int GigabitEthernet 3/0.310 (config-subif)#ip pim sparse-mode May 31 15:48:40.218 CET: %PIM-5-DRCHG: DR change from neighbor 0.0.0.0 to 10.11.130.1 on interface GigabitEthernet3/0.310 At that point all my L2TPv3 tunnels on the other subinterfaces on Gi3 stopped working. When I removed the command, everything came back up again. Is this a bug or am I missing something? Regards, Rens -----Original Message----- From: Rens [mailto:rens@autempspourmoi.be] Sent: mercredi 26 mai 2010 16:59 To: 'Everton Marques' Cc: nanog@nanog.org; 'Jamie Sobczyk' Subject: RE: IPv4 Multicast One more question: If I would now connect another switch (WS-C3524-XL) between the VLC receiver and the 3560G like this: VLC receiver - 3524XL - 3560G - 1841 - 1841 - 4503 - VLC sender That 3524XL only supports CGMP, what do I need to change on the config to not broadcast this multicast traffic? Do I need to configure the ip cgmp router-only on the 1841 at Receiver? -----Original Message----- From: Rens [mailto:rens@autempspourmoi.be] Sent: mercredi 26 mai 2010 16:10 To: 'Everton Marques' Cc: nanog@nanog.org; 'Jamie Sobczyk' Subject: RE: IPv4 Multicast Woot! It was the TTL on the VLC sender that was on default, changed it to 10 and now and I have my video. Thanks for your help. _____ From: Everton Marques [mailto:everton.marques@gmail.com] Sent: mercredi 26 mai 2010 15:42 To: Rens Cc: Jamie Sobczyk; nanog@nanog.org Subject: Re: IPv4 Multicast Does "show ip mroute count" on the 1841 (RP) display activity on traffic counters? Is the VLC sender directing multicast to the 1841 (RP) thru a default route? Is the VLC sender issuing multicast packets with a high-enough multicast TTL ? Everton On Wed, May 26, 2010 at 10:21 AM, Rens <rens@autempspourmoi.be> wrote: I have all those things you mentioned below. The VLC server (10.0.1.2) sends out 2 streams on 239.255.0.1 & 239.255.0.2 I see both in SAP, when I try to join 239.255.0.2, nothing happens in VLC and below you have the output of my routers & switches at that time: On my RP router I see for show ip mroute: (*, 239.255.255.255), 5d04h/00:03:26, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:26 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:41 (10.0.1.2, 239.255.255.255), 1d06h/00:03:28, flags: LT Incoming interface: FastEthernet0/0.200, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:26 (*, 239.255.0.2), 00:01:10/00:03:19, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:01:10/00:03:19 (*, 239.255.255.250), 00:07:19/00:03:07, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:07:22/00:03:03 (*, 239.195.255.255), 1d06h/00:02:39, RP 172.16.0.2, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 00:01:24/00:02:39 (*, 224.2.127.254), 5d04h/00:03:10, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:03:10 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:38 (*, 224.0.1.40), 5d04h/00:02:40, RP 172.16.0.2, flags: SJCL Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: FastEthernet0/1, Forward/Sparse, 1d06h/00:02:59 FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:40 On my other router I have: (*, 239.255.255.255), 5d04h/stopped, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:54 (10.0.1.2, 239.255.255.255), 1d06h/00:02:58, flags: LJT Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 1d06h/00:02:54 (*, 239.255.0.2), 00:01:55/00:02:56, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:01:55/00:02:56 (*, 239.255.255.250), 00:08:04/00:02:53, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:08:04/00:02:53 (*, 239.195.255.255), 5d04h/00:02:50, RP 172.16.0.2, flags: SJC Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 00:02:08/00:02:50 (*, 224.2.127.254), 5d04h/00:02:48, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:48 (*, 224.0.1.40), 5d04h/00:02:52, RP 172.16.0.2, flags: SJCL Incoming interface: FastEthernet0/1, RPF nbr 192.168.0.2 Outgoing interface list: FastEthernet0/0.200, Forward/Sparse, 5d04h/00:02:52 On the switch where the RP is connected: Vlan Group Version Port List --------------------------------------------------------- 200 224.0.1.40 v2 Gi2/24 200 224.2.127.254 v2 Gi2/24 200 239.255.255.255v2 Gi2/24 On the switch where the receiver is connected: Vlan Group Type Version Port List ----------------------------------------------------------------------- 200 224.0.1.40 igmp v2 Gi0/24 200 224.2.127.254 igmp v2 Gi0/1, Gi0/24 200 239.195.255.255 igmp v2 Gi0/1, Gi0/24 200 239.255.0.2 igmp v2 Gi0/1, Gi0/24 200 239.255.255.250 igmp v2 Gi0/2, Gi0/24 200 239.255.255.255 igmp v2 Gi0/1, Gi0/24 -----Original Message----- From: Jamie Sobczyk [mailto:lanson9@cox.net] Sent: vendredi 21 mai 2010 16:52 To: rens@autempspourmoi.be Cc: nanog@nanog.org Subject: RE: IPv4 Multicast Make sure you have "ip multicast-routing" on both routers. On the router interfaces, make sure you have "ip pim sparse-mode" On both routers, make sure you have the same rp address assigned and that you can ping this ip address from both routers. (I prefer to make it a loopback interface) "ip pim rp-address w.x.y.z" Also, make sure that routing is setup on your routers so that your receiver can ping your sender. On your routers you should be able to see the source unicast address and multicast address by typing "show ip mroute" you should see something like this: (*, 239.192.3.47), 7w0d/00:02:59, RP 10.31.0.1, flags: S Incoming interface: Null, RPF nbr 0.0.0.0 Outgoing interface list: Port-channel15, Forward/Sparse, 7w0d/00:02:59, H (10.5.9.51, 239.192.3.47), 4w5d/00:03:27, flags: TA Incoming interface: Port-channel15, RPF nbr 10.7.193.138 Outgoing interface list: Port-channel17, Forward/Sparse, 4w5d/00:02:49, H On your switches, with igmp snooping enabled, you should be able to type: "show ip igmp snooping group" and see something like Vlan Group Type Version Port List ----------------------------------------------------------------------- 24 239.192.3.47 igmp v2 Gi1/0/21 That port listed is the port of the requester. -----Original Message----- I have setup a lab for this multicast. VLC receiver - 3560G - 1841 - 1841 - 4503 - VLC sender The 2 switches only provide L2 access, they have IGMP snooping active On both 1841's I have pim parse-mode & sap listen on all interfaces + configured a static RP, the one closest to the sender. With my VLC receiver I can see the channels via SAP, but when I join the multicast group I don't receive anything. Could someone help me to troubleshoot this? Thanks in advance, Rens
participants (7)
-
Anton Kapela -
Christopher Morrow -
Everton Marques -
Jamie Sobczyk -
Jared Mauch -
Mike Walter -
Rens