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On Thu, 18 Nov 1999, Nick Christopher wrote:
>
> My real servers are still arping I think. All my machines are ipvs
> patched, I'm using tunl0 on the real servers.
> If I ping the VIP from a machine on the segment (its an innocent
> bystander, not the director or a real server - an NT box in fact) and
> then do an "arp -a" the Physical Address listed for the VIP is one of
> the real servers not the director.
>
> To top it all off, ifconfig on the real server that arp'ed shows:
>
> tunl0 Link encap:IPIP Tunnel HWaddr
> inet addr:198.4.126.55 Mask:255.255.255.255
> UP RUNNING NOARP MTU:1480 Metric:1
>
> Says it's NOARP...but arp -a shows:
don't believe everything you read, Solaris does the same thing.
> 198.4.126.52 00-aa-00-3c-d9-69 dynamic
> 198.4.126.55 00-aa-00-3c-d9-69 dynamic
>
> And .52 is a real server. The director is:
>
> 198.4.126.51 00-aa-00-3c-dc-0c dynamic
>
> And I checked...eth0:0 on the director doesn't say NOARP....
>
> Again my setup:
> all on a single segment
> using VS-TUN
> all machines RH 6.1 linux running 2.2.13 kernel with
> ipvs-0.9.4-2.2.13 patch applied.
> real servers using dev tunl0
starting with 2.2.12, the arp patch for the realservers is separate from
the patch for the director (and is documented in the HOWTO now). The
realserver patch is at
http://www.linuxvirtualserver.org/sdw_fullarpfix.patch
presumably all your realservers are arping and the one you've found is
the first to reply. You could inplug it and arp for the VIP again
and see who else is replying.
Joe
--
Joseph Mack mack@xxxxxxxxxxx
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