Routerboard 1100 interface flabbing in Bridge mode and QoS

RouterOS General
1

All,

i just installed a Routerboard 1100 into the network. Here is the flow

ISP Switch -----> Routerboard 1100 eth11 -----> Cisco 3750 Switch

I have setup the following mangle rules

0 chain=prerouting action=mark-packet new-packet-mark=voip passthrough=yes protocol=udp src-port=5060
1 chain=prerouting action=mark-packet new-packet-mark=voip passthrough=yes protocol=tcp src-port=5060
2 chain=prerouting action=mark-packet new-packet-mark=voip passthrough=yes protocol=udp src-port=16384-32768
3 chain=prerouting action=mark-packet new-packet-mark=voip passthrough=no dscp=26
4 chain=prerouting action=mark-packet new-packet-mark=voip passthrough=no dscp=46
5 chain=prerouting action=mark-packet new-packet-mark=voip passthrough=yes protocol=udp dst-port=5060
6 chain=prerouting action=mark-packet new-packet-mark=voip passthrough=no protocol=tcp dst-port=5060
7 chain=prerouting action=mark-packet new-packet-mark=voip passthrough=no protocol=udp dst-port=16384-32768

I have also setup a simple queue

on all interfaces giving voip priority of 1. When I make a VOIP phone call the interface connected to the 3750 switch resets. I noticed that if I power the Mikrotik down it will run in bypass mode and the issue does not occur. I can’t use the router if everytime I make a phone call the interface resets on me. Has anyone ran into this before.

I am running version 4.13

2

Know issue on ports 11-13. 5 bucks says you can run just fine on ports 1-10.

3

contact support about this issue please. we need more info

4

Ive narrowed it down.

If you have a simple mangle rule that marks a connection and another mangle rule that marks packets associated with that connection, if those packets are forwarded through 11,12,13 and out another physical interface (not a problem over a vpn tunnel), it will flip-flop the port.


Also, I was having IPSEC problems on my RB1100 on RC8/9. That seems to be fine now that I got rid of that mangle rule.

Friggin weird.