From: Stanislav Sinyagin (SSinyagin@xxxxxx)
Date: Thu Dec 23 1999 - 12:17:26 GMT-3
Looks like my contest didn't meet any enthusiasm :)
I should say that I reworked this task from somebody's Lab Exam memories,
and that guy has done it!
To be honest, I made it work after a day of f*cking...
Good luck and great holidays,
Stan
----- Original Message -----
From: Stanislav Sinyagin <SSinyagin@mtu.ru>
To: <ccielab@groupstudy.com>
Sent: Monday, December 20, 1999 23:12
Subject: NAT advertizing contest
> Hi all
>
> Here's an untypical scenario I came across during my studies, in
> someone's old papers. I implemented it in my test lab, and I think
> that would be useful for you too. Who provides the best (the easiest,
> the most reliable, the most concise...) solution ?
>
> R4---------R3---------R2
> E0 E0 S0 S0
> DCE
>
> The routers are connected in chain, the actual interface types ate
> unneccessary. R2 and R2 run OSPF area 0. R3 acts as a NAT gateway. R4
> is in inside NAT area, R2 is the outside network.
>
> In inside NAT area, the hosts have the network 10.0.0.0/23.
> They should be seen from the outside as 137.1.4.0/23.
> Also R4's loopback, 10.0.4.4, should be seen as 137.2.4.4 in the
> outside world.
> The outside world should see in its OSPF the 137.1.4.0/23 and
> 137.2.4.4/32 routes, and no route from 10.0.0.0/8 should be seen in
> the outside OSPF.
>
> R4 should ping and telnet any router in the outside world.
> There should be no statics on R4.
>
> Between R4 and R2 loopbacks there should be an DLSW link. Also (I
> didn't test it) I think there's no problem of installing a tunnel
> between them.
>
> Have fun,
> Stan
>
> --
> Stanislav Sinyagin MTU-Inform, Moscow
> Tel. (+7) (095) 258 7878 Fax (+7) (095) 258 7870
> E-mail: SSinyagin@mtu.ru http://www.mtu.ru
>
>
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