Hi,
I have emailed the list before (email can be found here
http://mailman.ds9a.nl/pipermail/lartc/2005q4/017220.html) regarding this
matter. Basically, I am trying to set up a router for my college, to route
conference guests over an adsl line, and students over an academic
connection. I''ve looked at man ip(8), and a few examples, and think I
have a
configuration that will work, but was wondering if somebody would mind
taking a look at it before I implement it (the system is currently live, so
I want to minimize downtime while implementing this change).
The configuration I have devised below is based on the tutorial here
(http://www.linuxquestions.org/questions/answers.php?action=viewarticle&arti
d=490).
The setup I have is shown below, along with the commands I think I will need
to run to set up routing correctly:
--------------------------------------
| eth2 eth0 |
----- | 192.168.7.253 ---> 192.168.100.253 | ISP_1 -----
| |------| 255.255.252.0 255.255.255.0 |-------| |
| | | | |
|
| LAN | | ROUTER | | WEB |
| | | | ISP_2 | |
| |------| eth1 eth3 |-------| |
----- | 192.168.3.253 ----> 192.168.20.253 | -----
| 255.255.252.0 255.255.255.0 |
--------------------------------------
echo "ISP_1" >> /etc/iproute2/rt_tables
echo "ISP_2" >> /etc/iproute2/rt_tables
ip route add 192.168.4.0/22 dev eth2 src 192.168.7.253 table ISP_1
ip route add default via 192.168.100.253 table ISP_1
ip route add 192.168.0.0/22 dev eth1 src 192.168.3.253 table ISP_2
ip route add default via 192.168.20.253 table ISP_2
ip rule add from 192.168.7.253 table ISP_1
ip rule add from 192.168.3.253 table ISP_2
If anyone could advise as to whether this is correct, or if there is
something I have completely missed or overlooked, or interpreted
incorrectly, it would be greatly appreciated.
Paul
---
Paul Lewis (paul.lewis@st-annes.ox.ac.uk)
JCR Computing Rep
St Anne''s College
http://www.stannesjcr.org
