Hi Daniel, Did you try to increase ip_conntrack_max ? (/proc/sys/net/ipv4/netfilter/ip_conntrack_max) If you use p2p for example, you can quickly reach the limit. Hope it helps. Fabien On 4/20/05, Daniel Wittenberg <daniel-wittenberg@xxxxxxxxxxx> wrote: > We've got a high-speed wireless and DSL connection so I decided to try > and load-balance the out-going connections. I run a little script that > does: > > route flush scope global > route flush cache > route add default scope global equalize nexthop via <external gw 1> dev > eth0 weight 1 nexthop via <external gw 2> dev eth1 > > This appears to work for awhile, then incoming connections stop getting > nat'd to their internal addresses. I reboot or reset the firewall > (flush all the tables and re-run this script) and things are good again > for awhile. I tried flooding some of the external IP's that are nat'd > and it seems like after a certain amount of traffic the nat just stops > working. tcpdump shows traffic on the external interface coming in, but > not going out anywhere. > > Anyone have ideas on how to debug this further or things to check? > > Thanks, > Dan > >