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which ports are used by tunnels
Posted: Mon May 20, 2013 4:52 pm
by motasa
Hi. I have two Mikrotik routers in two different locations. They are behind a Cisco firewall and all ports (TCP and UDP) are closed on firewall. I want to open the required ports for a tunnel (IPIP or EoIP); Does anyone know what are these ports that I should open? Thanks
Re: which ports are used by tunnels
Posted: Mon May 20, 2013 5:26 pm
by Chupaka
IPIP uses ip-encap protocol (4), EoIP uses GRE protocol (47)
so, if you're blocking only tcp (6) and udp (17), then it won't affect those tunnels
Re: which ports are used by tunnels
Posted: Tue Dec 24, 2013 6:34 pm
by ctcolsen
IPIP uses ip-encap protocol (4)
Hi Chupaka, I've been wrestling with this for 5 days now. I hope that you can help me out. How do I tell CISCO router to forward ip-encap protocol to my Mikrotik inside the network with a private IP of 192.168.230.246?
Re: which ports are used by tunnels
Posted: Wed Dec 25, 2013 11:27 pm
by Chupaka
and why doesn't it forward currently?..