I have a Billion BiPac 7700N Modem/Router/Access Point and I connect another router (TP-Link TL-WR1043ND) in wan-bypass mode to extend the wireless coverage. Lately, I noticed that the connection through TP-Link has been dropping out quite regularly.
Having read some posts on the Internet, I checked system log on 7700N and found that there are many "nf_conntract: expectation table full" errors, which I suppose the iptables are full.
- What does constitute an entry on the iptable? Is it a client or a connection (which means one client can have multiple connections)
- How could I find out where are those connections originated from?
Note: Many reported that the issue is usually related to having torrents running but I don't have any torrents running.