BIG PING ON LOCAL INTERFACE EVEN FEW TIME OUTS

RouterOS General
1

SYSTEM : P4 / 1.8 GHz 512 MB ram MT 2.9.31 on a CF card

concurent users ~ 15 , 8 VPN (PPTP)

ping on local interface ( 10/100 Mbit lan) :


C:\Documents and Settings\Administrator>ping 10.100.13.1 -t

Pinging 10.100.13.1 with 32 bytes of data:

Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time=145ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time=63ms TTL=64
Reply from 10.100.13.1: bytes=32 time=312ms TTL=64
Request timed out.
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time=260ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Request timed out.
Request timed out.
Reply from 10.100.13.1: bytes=32 time=89ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64
Reply from 10.100.13.1: bytes=32 time<1ms TTL=64

Ping statistics for 10.100.13.1:
Packets: Sent = 27, Received = 24, Lost = 3 (11% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 312ms, Average = 36ms

WHAT COULD THE REASON BE , AFTER RESTART PING GETS OK FOR SOME TIME THEN COMES THE SAME ?

2

Take a look at your system resources when the ping time starts to increase, I see this problem when I have an abuser and my Routerboard CPU goes to 100%. But with only 15 users, it likely is something else as I’m running 500+ clients through my Routerboard 230 only get that problem with abusers.

Hopefully that helps you trackdown the problem.

3

Seccour thanks for quick reply but all my clients are friends of mine and have no idea of TCP/IP hacking or smth like that the lines are mostly used for VoIP ( SKYPE ) . and no suspicios traffic or even packets seen … CPU is like 3%~5% (on P4 normaly … )

4

i had the same problem with the lan and wan interface but it was for a simple queue it was without target upload and target download it was in blank

5

also a bad network card or cable could be at fault. and yes, check firewall and queues.

6

I think you should check arp deceive in the local area !