[CentOS-virt] Xen domU default gateway missing/ARP table full
pasik at iki.fi
Thu Nov 19 16:04:26 UTC 2009
On Thu, Nov 19, 2009 at 10:03:05AM -0500, Ken Bass wrote:
> Pasi Kärkkäinen wrote:
> > I usually specify the default gateway in
> > /etc/sysconfig/network-scripts/ifcfg-eth0 and it works just fine.
> Actually, I tried putting the GATEWAY in the specific ifcfg-eth0, as
> well as the global /etc/sysconfig/network and it seems to be ignored.
> Of course things 'appear' to work just fine, but the route that is setup is
> default * 0.0.0.0 U 0 0 0 eth0
> INSTEAD OF:
> default router.example.com 0.0.0.0 UG 0 0 0 eth0
> The former seems to cause all arp entries to be queried and cached. The latter works correctly.
> Both 'appear to work'. Does the route on your domU look like the second entry?
Yes, the routing table is correct for my domUs.
I have never noticed/seen GATEWAY getting ignored..
Maybe your netmask is wrong, so the GATEWAY IP is unreachable?
More information about the CentOS-virt