We use "arping -Uc1 <new IP address>" in a similar situation to notify
peers that our IP address has changed. (This is on a RHEL x64 platform,
however.)

On 5/17/12 11:18 AM, Mauro Souza wrote:
> I saw this on a SLES11-SP2 this week. To solve the problem, I put an
> script to ping the gateway as soon as it boots. And it works.
>
> 2012/5/17 Levy, Alan<ALevy@doit...>:
>> We have a problem with a linux server that when we reboot it, it takes at least 15 minutes to be able to ssh into.
>>
>> It seems, from out network traces, that when the server reboots, it has 2 mac addresses in the arp tables on the firewall  (one from before and one from after the reboot).
>>
>> We cannot ping or ssh into the server after the reboot. Yesterday, we rebooted it. The network group ran traces, captured packets, etc and we found that if we pinged the network gateway address from this server, everything started working again.
>>
>> Has anyone seen this before ?

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