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List: libvirt-users
Subject: Re: [libvirt-users] unable to ping from guests in virbr0 to guests in virbr1 network
From: mallapadi niranjan <niranjan.ashok () gmail ! com>
Date: 2012-11-19 17:37:41
Message-ID: CAE_F0QTcX-mWGdd-NSQpi0HAJLLkHEkce9DFuQ2dmjKMa_0opQ () mail ! gmail ! com
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On Mon, Nov 19, 2012 at 7:05 PM, Rudy Godoy <rudy@stone-head.org> wrote:
> On Mon, Nov 19, 2012 at 12:09:53PM +0530, mallapadi niranjan wrote:
> > Hi all,
> >
> > I have 3 guests (2-RHEL4 and 1 RHEL6) and have some issues regarding
> > networking between them. The 2 RHEL4 system's use default bridge virbr0
> and
> > get ip's of range 192.168.122.0/24 (192.168.122.207, 192.168.122.167)
> >
> > I created another bridge (virbr1) with NAT forwarding (no dhcp). The
> > network i choose was 192.168.100.0/24. And the third system (RHEL6) was
> > assigned static ip-addres 192.168.100.101,
> >
> > >From the RHEL6 system which uses virbr1 is able to ping systems in
> > 192.168.122.0/24 series , but guest systems in 192.168.122.0/24 are not
> > able to ping RHEL6 system (in virbr1) network.
> >
> > >From the RHEL4 guests i am able to ping the gateway ip's (192.168.122.1,
> > 192.168.100.1) , but not the RHEL6 system
> >
>
> That's correct behavior, because the networks are in different ranges
> they need to have a way to talk to each other, either via a gateway or
> fixed routing.
>
ok
>
> btw, Why do you need your hosts in separate networks?
>
I have a special requirement where i need guests from different networks
(subnets) to need to communicate each other.
You may want to check this page on libvirt networking.
> http://wiki.libvirt.org/page/VirtualNetworking
>
> regards.
>
> --
> Rudy Godoy
> http://stone-head.org
>
> _______________________________________________
> libvirt-users mailing list
> libvirt-users@redhat.com
> https://www.redhat.com/mailman/listinfo/libvirt-users
>
[Attachment #3 (text/html)]
<br><br><div class="gmail_quote">On Mon, Nov 19, 2012 at 7:05 PM, Rudy Godoy <span \
dir="ltr"><<a href="mailto:rudy@stone-head.org" \
target="_blank">rudy@stone-head.org</a>></span> wrote:<br><blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex">
<div>On Mon, Nov 19, 2012 at 12:09:53PM +0530, mallapadi niranjan wrote:<br>
> Hi all,<br>
><br>
> I have 3 guests (2-RHEL4 and 1 RHEL6) and have some issues regarding<br>
> networking between them. The 2 RHEL4 system's use default bridge virbr0 \
and<br> > get ip's of range <a href="http://192.168.122.0/24" \
target="_blank">192.168.122.0/24</a> (192.168.122.207, 192.168.122.167)<br> ><br>
> I created another bridge (virbr1) with NAT forwarding (no dhcp). The<br>
> network i choose was <a href="http://192.168.100.0/24" \
target="_blank">192.168.100.0/24</a>. And the third system (RHEL6) was<br> > \
assigned static ip-addres 192.168.100.101,<br> ><br>
> >From the RHEL6 system which uses virbr1 is able to ping systems in<br>
> <a href="http://192.168.122.0/24" target="_blank">192.168.122.0/24</a> series , \
but guest systems in <a href="http://192.168.122.0/24" \
target="_blank">192.168.122.0/24</a> are not<br> > able to ping RHEL6 system (in \
virbr1) network.<br> ><br>
> >From the RHEL4 guests i am able to ping the gateway ip's \
(192.168.122.1,<br> > 192.168.100.1) , but not the RHEL6 system<br>
><br>
<br>
</div>That's correct behavior, because the networks are in different ranges<br>
they need to have a way to talk to each other, either via a gateway or<br>
fixed routing.<br></blockquote><div><br>ok<br> <br></div><blockquote \
class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc \
solid;padding-left:1ex"> <br>
btw, Why do you need your hosts in separate networks?<br></blockquote><div><br>I have \
a special requirement where i need guests from different networks (subnets) to need \
to communicate each other.<br><br></div><blockquote class="gmail_quote" \
style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
You may want to check this page on libvirt networking.<br>
<a href="http://wiki.libvirt.org/page/VirtualNetworking" \
target="_blank">http://wiki.libvirt.org/page/VirtualNetworking</a><br> <br>
regards.<br>
<span><font color="#888888"><br>
--<br>
Rudy Godoy<br>
<a href="http://stone-head.org" target="_blank">http://stone-head.org</a><br>
<br>
_______________________________________________<br>
libvirt-users mailing list<br>
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target="_blank">libvirt-users@redhat.com</a><br> <a \
href="https://www.redhat.com/mailman/listinfo/libvirt-users" \
target="_blank">https://www.redhat.com/mailman/listinfo/libvirt-users</a><br> \
</font></span></blockquote></div><br>
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