EoIP tunnels dont forwarding traffic, but broadcasting and discovers mac

RouterOS General
1

Hi,

I have used two old routerboards with 2.9 in several years just for one eoip tunnel without any problems.
The setup is really simple, just a wan interface adress and one port on each router tied to the bridge with the eoip tunnel.

Now to my problem, I bought two new RB750 to replace the old ones with.
The physical port I am using for the eoip tunnel is set to masterport “none”.
EoIP tunnel is working “running” and I can see mac addresses but no traffic is forwarded ! ?

I feel kind of stupid because the setup is so simple and I guess this can be a minor thing (chips fingers).

note: IP fw is disabled in bridge and not used.

Is it something about the switchmode for all these ports need to be changed somewhere?

2

Looks like a routing problem?

Something I’d do for starters:

  • Upgrade RouterOS and firmware versions in both
  • Export configuration (Open a New terminal and issue “/export file=RouterA hide-sensitive” (RouterB on the other)
  • Reset to no defaults
  • import previous exports (.rsc) on each router.

Can you paste those exports and the result of /ip route print?

3

Its not a routing issue.

I just found out if I disable this rule everytning works as it should do with EoIP .
But please tell me, how ,what impact will this do to my security? I am not sure about this fw filter ! ?
If I enable the filter “8” EoIP stop working. Do I need to make Another filter Before accepting some traffic and then enable this filter number 8 after ?

8 XI ;;; default configuration
chain=input action=drop in-interface=ether1-gateway log=no log-prefix=“”

4

I found out if I disable fw filter #6 as below everytning works.

6 XI ;;; default configuration
chain=input action=drop in-interface=ether1-gateway log=no log-prefix=“”
What exactly does this filter do ( am not sure about input and forward in router os) and to improve security, can I add any rule before allowing the traffic and enable this one again ?

Cheers