[Linux-vrf-general] Rout looping through local host.

[Grant T. <gt...@ri...>]

I believe the following is possible to do using Linux-VRF, but I'd like 
some confirmation if at all possible.  I think that I can make what I'm 
wanting to do work if I make each "Context" be a different VRF.  Am I 
any where close?

With out going in to too much detail, I am effectively wanting to do the 
following.

I want to be able to take traffic in from a local LAN on eth0 and route 
it out eth1 to a default gateway with a static IP.  I want said default 
gateway with the static IP to be assigned to eth2.  I then want to route 
and masquerade traffic that came in eth2 out eth3.

(Enter ASCII art)

--------------+
   Context 0   |
        +------+      +-----------+
    +---+ eth0 |------+ Local LAN |
    |   +------+      +-----------+
    |          |
    |   +------+
    +---+ eth1 +---+
        +------+   |
               |   |
==============|===|===
   Context 1   |   |
        +------+   |
    +---+ eth2 +---+
    |   +------+
    |          |
    |   +------+      +----------+
    +---+ eth3 +------+ Internet |
        +------+      +----------+
               |
--------------+

Note:  eth1 and eth2 are not real ethernet interfaces.  They are 
effectively tunnel like and are NOARP interfaces.

I want the ""router in context 0 to effectively (for the sake of 
discussion) do basic static NAT routing for the local LAN.  This router 
will have two static IP addresses, LAN facing and upstream router facing.

I want the ""router in context 1 to effectively (for the sake of 
discussion) do basic MASQUERADing for the equipment behind it.  This 
router will have one static IP facing the LAN and one dynamic IP facing 
its upstream provider.



Grant. . . .