[RHEL] [linux] RHEL/CentOS 4 networking trouble

[Richard Lotz]

On Jul 6, 2007, at 08:15 , Gordon Messmer wrote:

> What host are you trying to "ping"?

Next question should also be, "how are you pinging?"  `ping` should  
allow you to set the source interface of the outgoing packets w/ the  
'-I' flag.  I believe this should prevent the system from attempting  
to decide which interface to source the traffic on.  The `arping`  
tool has a similar flag.

$ ping -I eth1 ip.ad.dr.ess

Additionally, are there other hosts already working on the private  
backup network?  If so can they reach the problem hosts?  If you  
attempt to ping from a working host to 10.254.250.226 do you see  
incoming traffic via `tcpdump` and the proper ARP records in `arp -a`?

-richard