NAT and AIM disconnects
Thu, 18 Oct 2001 20:47:11 -0400
In our latest network install, we decided to use NAT along with a combo
of DSL lines for the bandwidth. The network is a very basic ethernet
network with capacity for 200+ users. We are just starting out and so
far we have 80 users.
The bandwidth is provided with 2 DSL lines "bonded" using equal cost
routing to the 2.
Here is the setup for the gateway:
/sbin/ip route delete default
/sbin/ip route add default scope global equalize nexthop via 192.168.0.1
h2 nexthop via 220.127.116.11 dev eth3
/sbin/iptables -t nat -F
/sbin/iptables -t nat -A POSTROUTING -o eth3 -j SNAT --to XX.192.154.165
/sbin/iptables -t nat -A POSTROUTING -o eth2 -j SNAT --to XXX.68.4.2
The network seems to run well. There are no other noticeable problems,
except for AIM. Most users complain of being disconnected from Instant
Messenger on a constant basis.
The gateway does not spit out any of its common "...out of
connections..." error notices. My ip_conntrack_max is set to 48000.
The machine is a PPro200 with 256Mb RAM.
Does anybody else have the same trouble?
Do I need to do MASQUERADE along with SNAT?
Any help would be appreciated.
Empowering Solutions, Inc.