I need help about voice in MikroTik.

k_petkov · Mon Aug 09, 2004 9:58 am

I tried to mangle two flows with different TOS (in set-tos field).
Data traffic with TOS=224 which is equal to IP prec.=7.
Voice traffic with TOS=96 which is equal to IP prec.=3.
Unfortunately router mangle only data traffic with TOS=224, voice traffic remain TOS=0.
Is there someone who meet with this kind of problem ?

Eugene · Mon Aug 09, 2004 6:33 pm

You should post some more information. E.g. how do your mangle rules look like?

k_petkov · Tue Aug 10, 2004 9:37 am

[kpetkov@KK-Varna] ip firewall mangle> print
Flags: X - disabled, I - invalid, D - dynamic
0 src-address=192.168.1.0/24 dst-address=192.168.0.0/20 action=passthrough
mark-flow=data set-tos=224

1 dst-address=192.168.0.0/20 action=passthrough mark-flow=voice set-tos=96
[kpetkov@KK-Varna] ip firewall mangle>

Eugene · Tue Aug 10, 2004 1:54 pm

With these rules all traffic mangled by the first rule will be remangled by the second. Use action=accept in the first rule.

k_petkov · Tue Aug 10, 2004 2:40 pm

Thanks.
What about if I change the order of the mangle rules ?

Eugene · Tue Aug 10, 2004 3:53 pm

You should put more specific rules first (like it is configured now)

k_petkov · Tue Aug 10, 2004 4:04 pm

Now I understood. Thank you.
I plan to preoritize voice traffic over data. Would you suggested me good solution about queuing mechanism ?

Eugene · Tue Aug 10, 2004 4:09 pm

A good place to start would be:
http://www.mikrotik.com/docs/ros/2.8/ho ... nt#12.1.12

k_petkov · Tue Aug 10, 2004 5:05 pm

Thank you.
I have Tigerjet phonejack voice card. When I make mangle rule in order to mark voice traffic which come from voice card. What src-address (voice cards does not have ip address), In.interface (voice card does not appear as interface) I heve to use ?

[kpetkov@KK-Baza] ip firewall mangle> print
Flags: X - disabled, I - invalid, D - dynamic
0 src-address=192.168.0.0/24 in-interface=ether3 dst-address=192.168.0.0/20
action=accept mark-flow=data set-tos=224

1 dst-address=192.168.0.0/20 action=passthrough mark-flow=voice set-tos=96
[kpetkov@KK-Baza] ip firewall mangle>

Eugene · Tue Aug 10, 2004 5:26 pm

Router's own IP address and protocol

k_petkov · Wed Aug 11, 2004 11:42 am

I would like to If MiktoTik has tool which I can use to sniff the outgoing packets?
I want to see with what kind of TOS field previosly mandled flow leave from outgoing interface or come to outgoing interface.

Wed Aug 11, 2004 12:03 pm

there is a sniffer:

http://www.mikrotik.com/docs/ros/2.8/to ... r.frameset

k_petkov · Wed Aug 11, 2004 12:07 pm

Yes I know, but this sniffer do not give information about TOS field in packet

changeip · Wed Aug 11, 2004 7:52 pm

You can use sniffer tool to save info to a file, then FTP that file from the router to a workstation and input that file into Ethereal or other to view it. This file that Mikrotik saves is compatible with most packet viewing software.

Sam

k_petkov · Thu Aug 12, 2004 11:36 am

I have Voicetronix card I saw in log file when call ended the following:
Call statistics: 27 27105 26940
I do not know what this statistic mean, pls help.

k_petkov · Fri Aug 13, 2004 11:36 am

I need to know How can I find the suitable value for jitter bufer ?