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Xen vif-route + vm's interconnection



Hi,
I have debian lenny with Xen + 2vms using vif-route script.
Every machine has public IP address .

Is this Xen-specific case or this is my misunderstanding of basic
routing problems , but it seems that my machines can't reach each
other.

Here's the configuration ( ip a l & ip route for each host)

Dom0 :

root@dom0:~# ip a l  | grep -B 2
1: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether 00:30:48:ba:25:3e brd ff:ff:ff:ff:ff:ff
    inet 23.23.195.111/24 brd 23.23.195.255 scope global eth0
--
25: vif10.0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 32
    link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
    inet 23.23.195.111/32 brd 23.255.255.255 scope global vif10.0
--
26: vif11.0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 32
    link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
    inet 23.23.195.111/32 brd 23.255.255.255 scope global vif11.0
--
27: vif12.0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 32
    link/ether fe:ff:ff:ff:ff:ff brd ff:ff:ff:ff:ff:ff
    inet 23.23.195.111/32 brd 23.255.255.255 scope global vif12.0

------------------------
root@dom0:~# ip route
23.23.23.147 dev vif12.0  scope link  src 23.23.195.111
23.23.95.220 dev vif11.0  scope link  src 23.23.195.111
23.23.23.141 dev vif10.0  scope link  src 23.23.195.111
23.23.195.0/24 dev eth0  proto kernel  scope link  src 23.23.195.111
default via 23.23.195.254 dev eth0

DomU (1st host debian01):

root@debian01:/etc/powerdns# ip route
23.23.195.111 dev eth0  scope link
default via 23.23.195.111 dev eth0

-----

root@debian01:/etc/powerdns# ip a l
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UP qlen 1000
    link/ether 00:16:3e:0f:26:8c brd ff:ff:ff:ff:ff:ff
    inet 23.23.23.141/32 brd 23.255.255.255 scope global eth0


DomU (2nd host - debian02 ):

debian02:/etc/powerdns#  ip route
23.23.195.111 dev eth0  scope link
23.0.0.0/8 dev eth0  proto kernel  scope link  src 23.23.95.220
default via 23.23.195.111 dev eth0

-----------

debian02:/etc/powerdns#  ip a l
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
state UP qlen 1000
    link/ether 00:16:3e:57:e7:0f brd ff:ff:ff:ff:ff:ff
    inet 23.23.95.220/8 brd 23.255.255.255 scope global eth0




Am I missing something or those machines dont have a chance to see each other ?

regards
WZ

-- 
Wojciech Ziniewicz
http://rfc.sunsite.dk/rfc/rfc2324.html


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