Multi-NIC and Multi-ISP configuration (aggregation)
Phyo W. Soe
ps at michelangelotech.com
Thu Nov 29 17:07:35 UTC 2007
I have a question about network link aggregation. I know similar
questions have been asked by others in the past but I haven't found any
solution after many days of searching on the web.
Here is what I have - An Ubuntu 7.10 server to be used as a router that
have 3 NICs. There are 2 ADSL connections (each has 3Mbps speed) coming
from 2 ADSL modems which I want to connect to the 2 NICs on the Ubuntu
server. (The ADSL connections are from 2 different ISPs)
The 3rd NIC will be connected to a switch which users on the LAN will
connect to. I want to combine those 2 ADSL connections together to
achieve higher bandwidth (hopefully 6Mbps). So, the users on the LAN
will connect to a switch which connects to the 3rd NIC of server. All
incoming/outgoing traffic on the 3rd NIC has to be distributed evenly on
the other 2 NICs.
At first, I thought bonding is the solution. I later realized that, to
create a bonding interface, one has to enter the IP address and gateway
for the bonded interface. In my case, there are 2 gateways (from 2 ISPs)
and 2 different IP addresses from each of the ISP and I don't think
bonding will work.
Is there any other way of doing link aggregation? (I saw some tutorials
on bonding PPPoE using internal ADSL modems but I don't have any
Thank you so much.
More information about the ubuntu-users