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xen-users
Re: [Xen-users] Strange Networking Issue
Well, changing the vif line didn't do anything. I configured it as you
requested and when trying to do a tcpdump from the domU on eth1 shows
the following:
[root@secure ~]# tcpdump -i eth1 icmp
tcpdump: bind: Network is down
The other thing is that I have another xen server with a slightly older
version of xen on it where I have several IP's bound to eth0 in the
domU in the way I am trying to do now and it works fine. I had another
server before that. The only thing I am thinking is maybe I should
downgrade xen to the version I know is working and see if this is a
recent bug or something.
The domUs will have a hosting control panel installed in them which
adds new IP based sites using ip addr add and will complain if they are
on different nics or if they are already on the interface anyways.
Your thoughts?
Jon
jez wrote:
On Sat, Mar 10, 2007 at 06:33:28PM -0500, Jonathon Jones wrote:
Well, I did as you suggested and changed the netmask for x.x.153.178 to
255.255.252.0 and rebooted the machine just to give a clean slate. I'm
still in the same situation though. Xen just isn't forwarding the
packets to the domU for some reason. I can watch the ping requests come
in but since the IP is not bound to dom0, it doesn't respond to the
request and the domU isn't responding to it, nor is it receiving the
request according to tcpdump.
I just don't understand why xen isn't forwarding the traffic for some
IP's but it is for others. The only commonality to the IP's that do
work are that they are the primary IP bound to eth0 in the domU. It
seems to me that if that IP works then any other IP's should work,
especially if added tot he interface with the same network mask and
everything so that ip addr show lists them the same way....
*confused and frustrated*
You kidding! we're only just getting started here. Actually, I think
things are looking quite good. My next suggestion is as follows:
Xen does not appear to like multiple addresses configured on the same
card, so lets configure one interface for each address. I should of seen this
earlier, but there's a lot of smoke around. Change the Dom1 config
file to read:
vif=[ '', '', '' ]
I'm not sure if this will work as is, but it should create three
interfaces for Dom1 and add them all to the default bridge. Sorry, it's
not convienient for me to test this with my present setup. We might
need to add mac="..." and/or bridge="..." statements - but hopefully it
should work as is.
Then in Dom1 configure each interface (eth0, eth1, eth2) with their own
address.
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- Re: [Xen-users] Strange Networking Issue, (continued)
- Re: [Xen-users] Strange Networking Issue, Martin Hierling
- Re: [Xen-users] Strange Networking Issue, jez
- Re: [Xen-users] Strange Networking Issue, Jonathon Jones
- Re: [Xen-users] Strange Networking Issue, Jonathon Jones
- Re: [Xen-users] Strange Networking Issue, jez
- Re: [Xen-users] Strange Networking Issue, Jonathon Jones
- Re: [Xen-users] Strange Networking Issue, Jonathon Jones
- Re: [Xen-users] Strange Networking Issue, jez
- Re: [Xen-users] Strange Networking Issue, Jonathon Jones
- Re: [Xen-users] Strange Networking Issue, jez
- Re: [Xen-users] Strange Networking Issue,
Jonathon Jones <=
- Re: [Xen-users] Strange Networking Issue, Jonathon Jones
- Re: [Xen-users] Strange Networking Issue, Jonathon Jones
- Re: [Xen-users] Strange Networking Issue, jez
- Re: [Xen-users] Strange Networking Issue, Jonathon Jones
- Re: [Xen-users] Strange Networking Issue, jez
- Re: [Xen-users] Strange Networking Issue, Jonathon Jones
- Re: [Xen-users] Strange Networking Issue, jez
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