Load Balancing on router 1600

Unanswered Question
Jun 5th, 2007


I have a 1600 router with two serials and one ethernet.

and i have two incoming lines each of 128kbps that is to be connected to the serials, and the ethernet to my LAN.

is there any way to balance between the two lines? and if i can what is the required configuration on the router?

I have this problem too.
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spremkumar Tue, 06/05/2007 - 02:58


What kinda link connectivity you have on the serial ports ?

Is it normal point to point connectivity or Internet Leased Line getting connected to the outside world ?

If its a point to point connectivity then you can have simple static routes pointing via the interfaces with equal admin distance to take care of the load balancing.

If its internet leased line i would prefer to use them for redundancy purpose instead of trying out load balancing on them..


thaershunnar Tue, 06/05/2007 - 03:06

hi spremkumar

it is a simple point to point connectivity.

but i did not get your sol, i am sorry i am new in the networking world, so it would be appreciated if you go a little deeper.

thank you.

mohammedmahmoud Tue, 06/05/2007 - 02:59


If both links are from the same provider, just use 2 default routes to both links and you'll have load-sharing, to control your load-sharing technique, use CEF ("ip cef") and then you'll have 2 options, either to do the balancing per packet or per destination (if you can't use CEF, using fast switching will force you to do per-destination load-sharing).

I hope that i've been informative, please don't hesitate for further questions.

HTH, please do rate all helpful replies,

Mohammed Mahmoud.


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