[Xen-users] xenbr0 doesn't have an IP (should it?!)

["Stuart Rench" <Stuart.Rench@xxxxxxxxxxxx>]

My domU cannot communicate with anything other than the dom0.  The dom0
has no problems with any kind of communications.

I have seen some posts that imply that xenbr0 should have an IP address,
however, I cannot verify that.

What works:
Ping Dom0->DomU
Ping DomU->Dom0
SSH, etc Dom0->DomU
SSH, etc DomU->Dom0
Anything Dom0->(internet, intranet)


What doesn't Work:
Anything DomU->(internet, intranet, including gateway)

Some Information:
Dom0 IP: 10.0.0.12
DomU IP: 10.0.0.13
Gateway IP: 10.0.0.1

Below are some config and status snapshots:

[root@xen ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:1D:09:29:80:41  
          inet addr:10.0.0.12  Bcast:10.0.0.255  Mask:255.255.255.0
          inet6 addr: fe80::21d:9ff:fe29:8041/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:694 errors:0 dropped:0 overruns:0 frame:0
          TX packets:86 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:65309 (63.7 KiB)  TX bytes:19087 (18.6 KiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:2211 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2211 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2625224 (2.5 MiB)  TX bytes:2625224 (2.5 MiB)

peth0     Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:774 errors:0 dropped:0 overruns:0 frame:0
          TX packets:206 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:73258 (71.5 KiB)  TX bytes:26937 (26.3 KiB)
          Interrupt:16 Memory:f8000000-f8012100 

vif0.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:98 errors:0 dropped:0 overruns:0 frame:0
          TX packets:700 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:21671 (21.1 KiB)  TX bytes:65669 (64.1 KiB)

vif1.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:129 errors:0 dropped:0 overruns:0 frame:0
          TX packets:532 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:32 
          RX bytes:3612 (3.5 KiB)  TX bytes:45994 (44.9 KiB)

xenbr0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
          UP BROADCAST RUNNING NOARP  MTU:1500  Metric:1
          RX packets:650 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:52872 (51.6 KiB)  TX bytes:0 (0.0 b)




[root@xen ~]# brctl show
bridge name     bridge id               STP enabled     interfaces
xenbr0          8000.feffffffffff       no              vif1.0
                                                        peth0
                                                        vif0.0



[root@xen ~]# iptables -L
Chain INPUT (policy ACCEPT)
target     prot opt source               destination         

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination         
ACCEPT     all  --  anywhere             anywhere            PHYSDEV
match --physdev-in vif1.0 

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination    


[root@xen ~]# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
10.0.0.0        *               255.255.255.0   U     0      0        0
eth0
169.254.0.0     *               255.255.0.0     U     0      0        0
eth0
default         10.0.0.1        0.0.0.0         UG    0      0        0
eth0



from everything I know, this looks like it should work.

Any ideas?

Thanks,
Stuart

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