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From: "Doug Young" <dougy@bryden.apana.org.au>
To: <freebsd-questions@FreeBSD.ORG>
Subject: routing issue
Date: Sun, 20 Aug 2000 09:30:04 +1000
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I'd appreciate advice on the following

Firstly we have a FreeBSD 4.0 gateway with permanent connection to internet.
The gateway machine runs apache / sendmail / ftp services for both the local
(ethernet connected) LAN & a remote (dialup modem) LAN.

Both the local & remote LANs involve a Win2000 Server plus a number of Win98
systems. Public range IP addresses are presently used for all local & the
remote 2000 Server, which runs internet connection sharing for its
workstations.  The remote 2000 system has three network connections .....
the ethernet for its workstations, a modem for dialup to the permanently
connected FreeBSD gateway, and a second modem for remote access via Terminal
Services Clients.

PRESENT SETUP

permanent connection to internet
    |
    |
FreeBSD gateway ------------remote Win2000 Server ........ Terminal Services
    |
|             Clients
    |
|
    |
|
local Win2000 Server                               remote LAN
    |
    |
local LAN

Because of reliability issues, I wish to put another FreeBSD system at the
remote location to run the dialup connection between the local & remote
LANs.
Where it gets complicated is setting up the remote FreeBSD system. With a
Win2000 dialup it appears every machine on both local & remote LANs can
browse / email / ping other machines both locally & remotely, but when I
replace the remote 2000 system with a FreeBSD one & dialin to the local
FreeBSD gateway I get a "can't add route ..... already exists" error
message. I found I could prevent that by commenting out the "default router"
line in rc.conf & all machines could still browse the net, however local
machines can't contact remote ones.  Since there's no such problem with the
Win2000 setup I figure I must have something broken in the FreeBSD
configuration.

Anyone have ideas what could be wrong ??

PROPOSED SETUP

permanent connection to internet
    |
    |
local FreeBSD gateway ------------remote FreeBSD gateway
    |
|
    |
|
    |                                                                Win2000
Server ........ Terminal Services
    |
|                       Clients
    |
|
    |
|
local Win2000 Server                               remote LAN
    |
    |
local LAN




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