Re: [Xen-devel] eth alias within guest

[Ian Pratt <Ian.Pratt@xxxxxxxxxxxx>]

> I'm running xen and xenolinux from the xeno-1.1.bk tree and have a guest RH9 
> running as dom1.
> 
> When I try to add an alias, eth0:x, onto its existing eth0 I receive a 
> protocol not supported error.

Weird -- I can create aliases on a machine running RH9 on the
unstable tree just fine, and I don't think this code has changed
since 1.1. (see below).

Remember, if you want to use the alias in a domain other than
dom0 you'll need to poke an extra vfr rule down from dom0 to get
packets routed to the other domain correctly. (I haven't tested
that this actually works, but I think it should do). 

> I understand that xen only supports one network adapter at this
> time but should/does that affect the ability of the guest o/s(s)
> to alias their adapter?

Nope, should work...

Ian

[logged into domain 1]
bash-2.05# ifconfig eth0:x 10.10.10.10
bash-2.05# ifconfig
eth0      Link encap:Ethernet  HWaddr AA:00:00:C6:9B:33  
          inet addr:124.237.35.51  Bcast:128.232.47.255  Mask:255.255.240.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:664 errors:0 dropped:0 overruns:0 frame:0
          TX packets:569 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100 
          RX bytes:60567 (59.1 Kb)  TX bytes:51258 (50.0 Kb)

eth0:x    Link encap:Ethernet  HWaddr AA:00:00:C6:9B:33  
          inet addr:10.10.10.10  Bcast:10.255.255.255  Mask:255.0.0.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:33 errors:0 dropped:0 overruns:0 frame:0
          TX packets:33 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2890 (2.8 Kb)  TX bytes:2890 (2.8 Kb)


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