Hey all, last night while at the datacenter I was in a pinch to extend a rack's LAN. I compromised and ran out to the local Fry's to buy whatever switch I could find so as to allow some configuration to happen while we wait for the real network gear to show up. I left before confirming I could access the switch remotely; it was very late and I was pretty groggy and hey, any network gear has to be telnet'table this day and age. Of course I was mostly wrong. The switch expects some signed payload before allowing a telnet through. I found this: https://code.google.com/p/netgear-telnetenable/...but I'm having a hell of a time getting anything to respond. The most confounding part is the switch doesn't respond to a single SYN packet on low ports. I'm scanning all the ports now, but if nothing shows up, I'm not sure what a payload is good for if the switch doesn't ACK a single SYN. I'm curious if anybody's got any tips besides not using Netgear in the datacenter. I have the MAC, I've IP'd it via DHCP, and the model number: JGS524E and I can power cycle the switch as much as needed. P.S. long time listener, first time caller. i'm more of a sysadmin dangerously standing in for a proper network person.
On Sun, Nov 24, 2013 at 9:47 PM, David Birdsong <david@imgix.com> wrote:
JGS524E
kinda thinking that: "NETGEAR 24 Port Gigabit Unmanged Plus Business-Class Rackmount Switch - Lifetime Warranty (JGS524E)" coupled with: "Network Management Type Unmanaged" on: <http://www.newegg.com/Product/Product.aspx?Item=N82E16833122404> means you are boned.
On Nov 25, 2013 6:47 AM, "Christopher Morrow" <morrowc.lists@gmail.com> wrote:
On Sun, Nov 24, 2013 at 9:47 PM, David Birdsong <david@imgix.com> wrote:
JGS524E
kinda thinking that: "NETGEAR 24 Port Gigabit Unmanged Plus Business-Class Rackmount Switch - Lifetime Warranty (JGS524E)"
coupled with: "Network Management Type Unmanaged"
on: <http://www.newegg.com/Product/Product.aspx?Item=N82E16833122404>
means you are boned.
Good catch. I ripped it out of the box, racked and cabled it, tossed the trash and went home fully expecting to sort it out w/ nmap, tcpdump, tftp etc... I guess I am sorted out now.
That netgear link you submitted is primarily for routers, not switches. Sent from my (old) iPhone5 On Nov 24, 2013, at 18:47, David Birdsong <david@imgix.com> wrote:
Hey all, last night while at the datacenter I was in a pinch to extend a rack's LAN. I compromised and ran out to the local Fry's to buy whatever switch I could find so as to allow some configuration to happen while we wait for the real network gear to show up.
I left before confirming I could access the switch remotely; it was very late and I was pretty groggy and hey, any network gear has to be telnet'table this day and age. Of course I was mostly wrong.
The switch expects some signed payload before allowing a telnet through. I found this: https://code.google.com/p/netgear-telnetenable/...but I'm having a hell of a time getting anything to respond.
The most confounding part is the switch doesn't respond to a single SYN packet on low ports. I'm scanning all the ports now, but if nothing shows up, I'm not sure what a payload is good for if the switch doesn't ACK a single SYN.
I'm curious if anybody's got any tips besides not using Netgear in the datacenter.
I have the MAC, I've IP'd it via DHCP, and the model number: JGS524E and I can power cycle the switch as much as needed.
P.S. long time listener, first time caller. i'm more of a sysadmin dangerously standing in for a proper network person.
participants (3)
-
Christopher Morrow -
David Birdsong -
Garrett Skjelstad