I think Mikrotik router connection table entries vary by router. Our edge router can hold 524,288 entries, while my home router can hold 218080
On Wed, Oct 22, 2014 at 8:14 PM, That One Guy via Af <[email protected]> wrote: > if they own this router and this is what you suspect the issue is YOU have > no responsibility until THEY have contacted the vendor of their router for > support. > The EBR 2310 was nice because it had a log message that flat out said unable > to establish new connections. If you are prepared to own their problem, then > log into their router to see if there is a similar log. > we havent seen this problem since we went to offering a free airrouter, 30 > bucks and you dont have to deal with them anymore, if theyre exceeding the > capability of that then your TOS should have verbage regarding disruptive > network activities, which exceeding that capability has a good potential to > be disruptive > > On Wed, Oct 22, 2014 at 7:48 PM, Ken Hohhof via Af <[email protected]> wrote: >>> >>> Also, there is an option in the 13.2 (build 34) firmware that allows you >> >> to bump up the NAT table to 8096 (not to mention that you can now watch >> it via SNMP). >> >> I'm not doing NAT in the SM. >> >> >> -----Original Message----- From: Bill Prince via Af >> Sent: Wednesday, October 22, 2014 7:45 PM >> To: [email protected] >> Subject: Re: [AFMUG] home router max simultaneous connections >> >> >> A Mikrotik will hold many, many thousands of connections. Don't know >> what the limit is, but I have seen tens of thousands of connections in >> the connections list. >> >> Also, there is an option in the 13.2 (build 34) firmware that allows you >> to bump up the NAT table to 8096 (not to mention that you can now watch >> it via SNMP). >> >> bp >> >> On 10/22/2014 5:29 PM, Ken Hohhof via Af 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 -- Micah Miller Network/Server Administrator Network Business Systems, Inc. Phone: 309-944-8823
