James D. Wilson
2009-May-14 14:28 UTC
[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. Thanks, James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Bhasker C V
2009-May-14 14:34 UTC
Re: [Xen-users] Communicating between 2 domU''s on same dom0
James, The problem must not be occuring. But it would be helpful if you can give us more information. The information would be pertainting to the bridges which the domUs are attached. Is the nics configured so that both the dom1 and dom2 are shating the same subnet in the same bridge ? or are they in different bridges ? On Thu, 14 May 2009, James D. Wilson wrote:> 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. > > Thanks, > > James > >Bhasker C V Registered linux user #306349 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
James D. Wilson
2009-May-14 15:49 UTC
Re: [Xen-users] Communicating between 2 domU''s on same dom0
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@transolutions.net> To: xen-users@lists.xensource.com 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. Thanks, James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Jeff Williams
2009-May-15 04:47 UTC
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@transolutions.net> > To: xen-users@lists.xensource.com > 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 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
James D. Wilson
2009-May-15 14:48 UTC
Re: [Xen-users] Communicating between 2 domU''s on same dom0
----- Original Message ----- From: "Jeff Williams" <jeffw@globaldial.com> To: "James D. Wilson" <jwilson@transolutions.net> Cc: xen-users@lists.xensource.com 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@transolutions.net> > To: xen-users@lists.xensource.com > 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 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Jeff Williams
2009-May-19 01:55 UTC
Re: [Xen-users] Communicating between 2 domU''s on same dom0
On 15/05/09 22:48, James D. Wilson wrote:> 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 > >James, I don''t know if you''ve resolved this yet, but can you also show ''brctl show''? And also the source and destination addresses for the connection you are trying to make that fails. Jeff _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users