Next week I''m replacing my single SDSL connection with two ADSL
connections.
I''ve got a plan for dealing with this, but I''d like any
thoughts on
potential problems I might run into.
My goal is not to load balance the bandwidth (yet), but I do want to run all
traffic through a single router. At the moment this router only has one
ethernet port for both of the ADSL connections (and another ethernet port
for the local network) so this is my biggest concern. The example in the
HOWTO assumes a separate ethernet port for each uplink.
Here''s the intended setup:
ADSL 1 = 6mbps/768kbps, several static IPs on 66.92.128.0/24 (gw = .1)
ADSL 2 = 6mpbs/768kbps, several static IPs on 69.17.22.0/24 (gw = .1)
LOCAL NET ROUTER INTERNET
-----------------
192.168.A.0/24 ----| <-NAT-> |---- ADSL 1
|ETH0 ETH1|
192.168.B.0/24 ----| <-NAT-> |---- ADSL 2
-----------------
For example (to make up some numbers):
subnet A:
192.168.1.2 <-> 66.92.128.2
192.168.1.3 <-> 66.92.128.3
subnet B:
192.168.2.2 <-> 69.17.22.2
192.168.2.3 <-> 69.17.22.3
The default route to the Internet will be 66.92.128.1 via ADSL 1, but all
traffic for internal subnet B (SNATs to 69.17.22.xx) should instead route to
69.17.22.1 via ADSL 2.
I think (but correct me if I''m wrong) the command for this is:
ip route add 69.17.22.0/24 dev eth1 src 69.17.22.2
So are there any problems with this setup? Is there any need for separate
routing tables if both ADSL connections are on the same ethernet port? My
router is a mini-itx so I''m not sure I can easily fit another ethernet
port
in it, but I could look into that would really make things work better.
Thanks!
Chris
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