[c-nsp] Cursed IP address

Victor Sudakov vas at mpeks.tomsk.su
Thu Nov 27 00:41:31 EST 2014


Karsten Thomann wrote:
> As no one asked yet,  is it possible to get ospf related debug from the 
> not working router and the DR router of the subnet?

Good point, thank you. After looking at debug OSPF hello, we have
found out that Hello packets with src=10.65.127.246 are being sent by
the device

Nov 27 05:29:35.923: OSPF: Send hello to 224.0.0.5 area 0 on Vlan333 from 10.65.127.246

but they are not Rcv-ed by other devices on the network segment. 

Hello packets with any other src IP address, e.g. 10.65.127.243, are being
received as expected.

We are at a loss what could be blocking packets with this particular
src addr.

-- 
Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
sip:sudakov at sibptus.tomsk.ru


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