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Re: [Xen-users] define ip gateway


  • To: "Janis Daniel Bistevins" <bistevins@xxxxxxxxx>
  • From: "Todd Deshane" <deshantm@xxxxxxxxx>
  • Date: Wed, 16 Jan 2008 10:27:23 -0500
  • Cc: xen-users@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Wed, 16 Jan 2008 07:27:56 -0800
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On Jan 16, 2008 10:10 AM, Janis Daniel Bistevins <bistevins@xxxxxxxxx> wrote:
hi,
I have a VM with route-nat and 3 virtual interfaces. This is my config:

vif = [ 'ip=10.10.10.4/24, vifname=vif1.0', 'ip= 10.10.20.4/24,
vifname=vif2.0', 'ip=10.10.30.4/24, vifname=vif3.0' ]

And the output of dom0 ifconfig:

vif1.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
         inet addr:10.10.10.131  Bcast:0.0.0.0  Mask:255.255.255.255
         UP BROADCAST MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:32
         RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

vif2.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
         inet addr:10.10.20.131  Bcast: 0.0.0.0  Mask:255.255.255.255
         UP BROADCAST MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:32
         RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

vif3.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
         inet addr: 10.10.30.131  Bcast:0.0.0.0  Mask:255.255.255.255
         UP BROADCAST MULTICAST  MTU:1500  Metric:1
         RX packets:0 errors:0 dropped:0 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:32
         RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)


I need to know how can I change the IP address of vifx.0 . I want to
set that address to
something like 10.10.10.1 or 10.10.20.1, not 10.10.10.131.

Where can I change that 131 to something else? and why is assigned like that?

If my understanding is correct, since you set the guest IP to 10.10.10.4 the vifx.0 gets 10.10.10.131 since Xen adds 127 to the 4 (127+4 = 131). That is just the backend and you will not use that IP, you should only be concerned with the frontend number i.e . 10.10.10.4 which you set in the config.

Regards,
Todd

 

thx in advance.


--
Janis Daniel Bistevins
---
Serenity now!!!
---

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