remember they share ram in these thing with features, dlink was infamous for this.
On Wed, Oct 22, 2014 at 7:29 PM, Ken Hohhof via Af <[email protected]> wrote: > I have a complaining customer who I’m becoming convinced is exceeding the > NAT connection table in their router. Can I trust the numbers here: > > http://www.smallnetbuilder.com/lanwan/router-charts/bar/77-max-simul-conn > > This would indicate a mid-range route like a typical N600 probably > supports around 4,000 connections. I'm not sure why this is, if you look > at the RAM specs for any of these routers, it doesn't seem like a technical > limitation, it's almost like they are artificially limiting the connections > by price for marketing reasons. But I think this customer has something > like a Netgear WNDR3400. > > Anyway, am I barking up the wrong tree, or is this a possible or even > fairly common situation? I don't see any evidence this customer is doing > Torrents, but there seem to be a lot of TCP connections, and a lot of apps > that seem to have 4-10 or more connections open. Including Pandora, not > sure why Pandora would need so many connections. > > Please note, the SM is bridged, I am not doing NAT in the SM. > > Is there any way to prove this other than give them a Mikrotik? > > And on a Mikrotik, can I tweak the UDP/TCP timeouts to flush out idle > connections faster? Seems like even with infinite memory, there are only > 65K possible ports for NAT/PAT and you would run into port exhaustion. > > -- All parts should go together without forcing. You must remember that the parts you are reassembling were disassembled by you. Therefore, if you can't get them together again, there must be a reason. By all means, do not use a hammer. -- IBM maintenance manual, 1925
