[nsp] cisco load balancing

[MPuras@solunet.com]

This will work if you're doing all NAT on the inside, if you must have
publically routable IP addresses on the inside this will not work.  You can
do something like this (but just substitute the serial for ethernet):



s0/0 goes to ISP1, s0/1 goes to ISP 2. let's say we use 10.1.1.0/24 on the
inside. (Ethernet)


access-list 1 permit 10.1.1.0 0.0.0.255

route-map s00-nat permit 10
 match ip address 1
 match interface s0/0
!
route-map s01-nat permit 10
 match ip address 1
 match interface s0/1
!
ip nat inside source route-map s00-nat interface s0/0 overload
ip nat inside source route-map s01-nat interface s0/1 overload
!
ip route 0.0.0.0 0.0.0.0 Serial0/0
ip route 0.0.0.0 0.0.0.0 Serial1/0


Thanks,

Mario Puras
SoluNet Technical Support 



-----Original Message-----
From: Arie.Gerszt@student.unisg.ch [mailto:Arie.Gerszt@student.unisg.ch]
Sent: Wednesday, September 11, 2002 2:24 PM
To: cisco-nsp@puck.nether.net
Subject: [nsp] cisco load balancing


Hi List

Radware makes a product called Linkproof. It basically does load balancing
and automagical failover
for multiple isp's for outgoing connection. it states it using something as
smart nat. without the use
of any (i/eBGP)

as i understand it basically nat's traffic in a way that load is balanced
and in the case of a fail of one
link it just uses the other one the full extent.

What I was wondering is, if I can accomplish the same behavior with a
multiple ethernet router, say a 2621
with 3 FE for example.

basically I'd like to:

                      +--------- ISP 1 (static)
                      |
              /--------\
[firewall]----| CISCO  |
              \--------/
                      +--------- ISP 2 (static)

without using any BGP. Any suggestion of you "gurus"? :)

Thank you in advance

Arie

_______________________________________________
cisco-nsp mailing list  real_name)s@puck.nether.net
http://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/