Re: [Linux-vrf-general] Help needed
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Re: [Linux-vrf-general] Help needed
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From: Jeong Ho L. <jeo...@co...> - 2006-04-28 08:33:49
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Hi.
Please read the line below..
----- Original Message -----
From: "Rajeev Bansal" <ra...@in...>
To: <lin...@li...>
Sent: Friday, April 28, 2006 3:40 PM
Subject: [Linux-vrf-general] Help needed
> Hello,
>
> I am trying to simulate one simple setup using VRF on my Linux box
> but I am not able to simulate that, so can anyone tell me where I am
> going wrong or do I need to do something else.
>
> Setup description:
> |----------------------------|-eth0 (Outer World)
> | |
> |-------------------------------|
> | |--eth1=3D=3D=3D=3D=3D=3D eth0-| Box B =
|
> | Box A | | VRF not enab=
led |
> | VRF enabled |---eth2=3D=3D=3D=3D=3D=3D eth1-| =
|
> |---------------------------
> | |-------------------------------|
>
>
> I have two Linux box, lets say Box A and Box B, in one box I have
> enabled the VRF and created two VRF 1 and 2, to which I linked eth1
> and eth2 respectively. I have assigned the following IP address to the bo=
xes.
>
> Box-A eth0: 172.16.1.120
> Box-A eth1: 192.168.1.1 linked with VRF1
> Box-A eth2: 192.168.2.1 linked with VRF2
> Box-B eth0 192.168.1.2
> Box-B eth1 192.168.2.2
>
> Now I want to SSH,telnet or any thing from BoxA eth1 to BoxA eth0 or
> vice versa, via Box B. For that I added the route on both
> the virtual interface and enabled the packet forwarding in my Box B.
> By doing this I am able to ping from Box A eth0 to Box A eth1 and I
> can see the ICMP packets coming and going via my Box B. But I am not
> able to do SSH or telnet. Can any one tell me why my ping is working
> but not the ssh and telnet, and does vrf supports this kind of feature or=
not.
As far as I know...
The first thing that you have to know is that every process
including ssh, telnet
is running under vrf 0 not the others.
Even if you tried to establish ssh connection to vrf 1 or 2 on each box.
There is no ssh service process on those vrfs.
You might have to assign ssh server or telnet server to each vrfs
using chvrf tools.
Honestly, I haven't done this before.
- Jeong Ho.
>
> Please let me know if this scenario is not clear or need more info.
>
> Routing table of Box A
> #ip route show
> 172.16.1.0/24 dev eth0 proto kernel scope link src 172.16.1.120
> default via 172.16.1.254 dev eth0
> 192.168.2.0/24 via 192.168.1.2 dev eth1 vrf 1
> 192.168.1.0/24 dev eth1 proto kernel scope link src 192.168.1.1 vrf 1
> 192.168.2.0/24 dev eth2 proto kernel scope link src 192.168.2.1 vrf 2
> 192.168.1.0/24 via 192.168.2.2 dev eth2 vrf 2
>
> Thanks in advance.
> Rajeev Bansal.
>
>
>
>
>
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