Hello Experts
I have GRE tunnel on my router to remote end point. This GRE tunnel is basically IPV6 traffic over IPV4 GRE tunnel. I have routing engine protect RE filter (both IPV4/IPV6) as well on this router.
My question is that should I need to allow GRE protocol in RE protect firewall filter or not??
What I tested if I allow or not GRE protocol in firewall filter it is working fine. Appreciated for any input on this
Thanks