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xen-users
Re: [Xen-users] Communicating between 2 domU's on same dom0
----- Original Message -----
From: "Jeff Williams" <jeffw@xxxxxxxxxxxxxx>
To: "James D. Wilson" <jwilson@xxxxxxxxxxxxxxxxx>
Cc: xen-users@xxxxxxxxxxxxxxxxxxx
Sent: Thursday, May 14, 2009 11:47:10 PM GMT -06:00 US/Canada Central
Subject: Re: [Xen-users] Communicating between 2 domU's on same dom0
On 14/05/09 23:49, James D. Wilson wrote:
> I forgot to mention that when I try this from a different domU
> residing on a different dom0 it works fine.
>
> ----- Original Message -----
> From: "James D. Wilson" <jwilson@xxxxxxxxxxxxxxxxx>
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Sent: Thursday, May 14, 2009 9:28:32 AM GMT -06:00 US/Canada Central
> Subject: [Xen-users] Communicating between 2 domU's on same dom0
>
> Hi all,
>
> I am having an issue passing traffic on 80 and 443 between 2 domU's
> that reside on the same dom0. I was wondering if anyone else has
> experienced this type of issue. The dom0 has 2 nics 1 domU is passing
> in both nics, xenbr0 and xenbr1(br0=eth0 and br1=eth1) and the other
> is only passing in xenbr1. both domU's are on the same subnet for
> xenbr1. I can post additional information if needed. Any help is
> appreciated.
>
What does your routing look like on the DomUs? And what addresses are
you trying to connect on? I imagine that it is just a network
configuration issue.
Jeff
Thanks for the reply. Here are the routes from both domU's. The gateway on
domU1 is the VIP on domU2. We have 2 domU's on each server domU1 and domU2 on 1
and domU3 and domU4 on another. I can pass the web traffic from domU1 to domU3
and from domU 4 to domU 2 but when ever I try to do that with domU's that
reside on the same server it doesn't work. We are configuring LVS but if it was
an LVS issue neither situation would work right?
domU1
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.11.0 * 255.255.255.0 U 0 0 0 eth0
169.254.0.0 * 255.255.0.0 U 0 0 0 eth0
default 192.168.11.123 0.0.0.0 UG 0 0 0 eth0
domU2
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.32.0 * 255.255.255.0 U 0 0 0 eth0
192.168.11.0 * 255.255.255.0 U 0 0 0 eth1
169.254.0.0 * 255.255.0.0 U 0 0 0 eth1
default 192.168.32.1 0.0.0.0 UG 0 0 0 eth0
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