Chateau C12
RouterOS v7.1beta1
default config
I am working on QoS and marking packets. PC > router (bridge > lte1) > Internet
/ip firewall mangle add action=change-dscp chain=prerouting comment="mark ICMP packets (DSCP 46)"\
dscp=!46 in-interface=bridge new-dscp=46 passthrough=yes protocol=icmp
Above by mangle rule changes DSCP in ICMP packet but it is lost somewhere and results in
Request timeout for icmp_seq
. I cannot find anything wrong in logs.
If I try ping directly from router it works. If I disable this rule, ping works.
I am not sure whether it is a bug or not but DSCP marked ICMP do not pass via router and back.