Re: weird routing stuff ?!

From: Jesper Skriver (none@jesper--skriver.dk.lh.bsd-dk.dk)
Date: Wed 06 Jun 2001 - 21:13:13 CEST

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Date: Wed, 6 Jun 2001 21:13:13 +0200
From: Jesper Skriver <none@jesper--skriver.dk.lh.bsd-dk.dk>
To: bsd-dk@bsd-dk.dk
Subject: Re: weird routing stuff ?!

On Wed, Jun 06, 2001 at 09:06:01PM +0200, Kenneth Karlsson wrote:
> Nedenstående scenarie dutter ikke, af uforklarlige årsager, jeg kan
> sagtens trace den "rigtige" vej til 192.168.100.0 nettet, men ikke til
> nogen af 172.16.x.x nettene ??? og jeg fatter det ikke. Det er en 4.3R
> med IPFilter. Der er en TDC ProAccess ADSL på fxp0 og LAN på rl0.
>
> Nogen med et godt bud ?

En bug, bemærk dog a 172.16.* er en class B (dvs. /16), ergo det
er ikke netværks adresser du angiver, gør det nogen forskel hvis
du explicit angiver netmasken ?

> mail# netstat -rn
> Routing tables
>
> Internet:
> Destination Gateway Flags Refs Use Netif
> Expire
> default 192.168.1.1 UGSc 1 2 fxp0
> 127.0.0.1 127.0.0.1 UH 0 0 lo0
> 172.16.29.0 192.168.201.1 UGHS 0 0 rl0
> 172.16.30.0 192.168.201.1 UGHS 0 0 rl0
> 172.16.31.0 192.168.201.1 UGHS 0 0 rl0
> 172.16.32.0 192.168.201.1 UGHS 0 0 rl0
> 192.168.1 link#1 UC 0 0 fxp0 =>
> 192.168.100 192.168.201.1 UGSc 1 6 rl0
> 192.168.201 link#2 UC 0 0 rl0 =>
> 192.168.202 192.168.201.1 UGSc 0 0 rl0
>
>
> mail# traceroute 172.16.29.1

Hvad siger `route -n get 172.16.29.1` ?

/Jesper

-- 
Jesper Skriver, jesper(at)skriver(dot)dk  -  CCIE #5456
Work:    Network manager   @ AS3292 (Tele Danmark DataNetworks)
Private: FreeBSD committer @ AS2109 (A much smaller network ;-)
One Unix to rule them all, One Resolver to find them,
One IP to bring them all and in the zone to bind them.

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