Hello I have strange problem wiht GRE protocol on openbsd 5.5 (amd64) that act only as firewall (no VPN server on them) for my small local network. Problem is that sometime VPN connection works and i make connection but for some strange reason sometime VPN connection does not work. tcpdump shows that protocol 47 is unrechable (on firewall) but for some reason if i reload pf rules it works for some time. when VPN connection works if i try to made new one on new computer it does not work ( protocol 47 unrechable error ).
gre is allowed in sysctl .. i think that pf.conf rules are OK . any suggestion what to try ? pf.conf is in attachment [demime 1.01d removed an attachment of type application/octet-stream which had a name of pf.conf]
