[Xen-users] Re: Debian domU on Gentoo dom0

[Jens Kleikamp <jens@xxxxxxxxxxxxxxxxxx>]

Andy Smith schrieb:
> Hi Jens,
> 
> On Mon, Sep 24, 2007 at 03:49:58PM +0200, Jens Kleikamp wrote:
>> Debian domU /etc/network/interfaces (does not work)
>> --------------------
>> auto lo
>> iface lo inet loopback
>>
>> auto eth0
>> iface eth0 inet static
>> address 78.47.*.213
>> broadcast 78.255.255.255
>> netmask 255.255.255.255
>> gateway 213.239.*.45
>> --------------------
> 
> This network setup is completely wrong.  213.239.x.45 is not
> reachable from 78.47.x.213, also your netmask and broadcast do not
> match.
> 
> 78.47.*.210 - 78.47.*.215 is not any kind of sensible IP allocation
> I have ever heard of if you really mean that * can be anything.  If
> you are just trying to obscure your IP addresses then DON'T - it
> only makes debugging harder.
> 
> Assuming you mean that * is some fixed value then 78.47.1.210 ->
> 78.47.1.215 would probably correspond to an 8 IP allocation, or
> /28.  That would make your network address 78.47.1.208, your
> brodcast address 78.47.1.215, and your netmask 255.255.255.252.
> 
> Give dom0 an IP in 78.47.1.209 -> 78.47.1.214 inclusive, then your
> domUs can use that as their default gateway.

> 
> Cheers,
> Andy
> 
> 
Hello Andy,

thank you very much for taking the time to read my mail.

Sorry, I used the * just for not making my ip address public when I post
 to the mailinglist. It has fixed value.

I am wonder why this setup does work properly on gentoo domUs but not on
debian.

Here is my gentoo domU ifconfig+route
--------
eth0      Protokoll:Ethernet  Hardware Adresse 00:16:3E:2F:62:C2
          inet Adresse:78.47.*.210  Bcast:78.255.255.255
Maske:255.255.255.255
          inet6 Adresse: fe80::216:3eff:fe2f:62c2/64
Gültigkeitsbereich:Verbindung
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:282 errors:0 dropped:0 overruns:0 frame:0
          TX packets:375 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:1000
          RX bytes:24045 (23.4 Kb)  TX bytes:45080 (44.0 Kb)

lo        Protokoll:Lokale Schleife
          inet Adresse:127.0.0.1  Maske:255.0.0.0
          inet6 Adresse: ::1/128 Gültigkeitsbereich:Maschine
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          Kollisionen:0 Sendewarteschlangenlänge:0
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)
--------
route -n
Iface
213.239.*.45  0.0.0.0         255.255.255.255 UH    0      0        0 eth0
127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
0.0.0.0         213.239.*.45  0.0.0.0         UG    0      0        0 eth0
-----------------------------

My mission seems to be to get just that on debian too.
I must admit that the network setup looks crazy, but why the hell does
it working on gentoo domUs.

Sorry for my bad english
and thanks again
Jens








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