On Sat, Jul 21, 2012 at 1:57 PM, Shahab Vahabzadeh <sh.vahabzadeh@gmail.com> wrote:
Dear Christopher, There is no route for this host, but my users connect to this router via
$ p 76.164.199.86 PING 76.164.199.86 (76.164.199.86) 56(84) bytes of data. 64 bytes from 76.164.199.86: icmp_seq=1 ttl=250 time=89.9 ms seems like I see one from inside verizon-land...
virtual-template interface, and in the uplink interface of the same router automatically near 300Mbps traffic is generating (output) and its looping in the same interface (no broadcast in other interfaces). I sniff the traffic on that time with tcpdump I think lots of packets like this, I thought its an attack from one of users because my netflow analyser does not show any record with this IP Address. Do you have any idea?
some screwball config on your router? or a case where 2 devices have differing ideas of where 0/0 is headed? "Hey, you should know where to send this... no, you should... no, you should.... oops! ttl-expired."
Thanks
On Sat, Jul 21, 2012 at 10:17 PM, Christopher Morrow <morrowc.lists@gmail.com> wrote:
On Sat, Jul 21, 2012 at 10:50 AM, Shahab Vahabzadeh <sh.vahabzadeh@gmail.com> wrote:
76.164.199.86
is this host perhaps a bcast/network address or routed oddly at the destination? (/32 route to something that is redirecting to another place? or redirecting back toward 0/0?)
also: versaweb should fix their rwhois server: Found a referral to rwhois.versaweb.com:4321.
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-- Regards, Shahab Vahabzadeh, Network Engineer and System Administrator
Cell Phone: +1 (415) 871 0742 PGP Key Fingerprint = 8E34 B335 D702 0CA7 5A81 C2EE 76A2 46C2 5367 BF90