Tuesday 6 December 2011

Can't ping via direct connection using auto-ip address

Can't ping via direct connection using auto-ip address

I have two Linux hosts that I am trying to connect. Each host has 4 NICs. They have each been auto-configured with 169.XXX.XXX.XXX addresses. The interfaces on each are up and operational. I can arping the peer from either host just fine. Getting back replies.

However, regular ping fails in both directions. I suspect it is a routing issue since ping works at layer 3 vs arping which works at layer 2. Just not sure what I am missing.

Here are my routes:

Host #1
======
# ip route show
default dev eth0
169.254.0.0/16 dev eth0 src 169.254.127.213
169.254.0.0/16 dev eth1 src 169.254.197.39
169.254.0.0/16 dev eth2 src 169.254.184.155
169.254.0.0/16 dev eth3 src 169.254.106.224

Host #2
======
# ip route show
default dev eth0
169.254.0.0/16 dev eth0 src 169.254.249.230
169.254.0.0/16 dev eth1 src 169.254.113.198
169.254.0.0/16 dev eth2 src 169.254.63.21
169.254.0.0/16 dev eth3 src 169.254.119.110

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