IPsec VPN problems with Bintec and Sophos UTM

Some days ago I migrated a customer from two Bintec firewalls to a Sophos UTM HA cluster. The branch offices kept their Bintec routers so I configured site2site VPN tunnels to the Sophos UTM. I had many problems with this VPN tunnels, I got always log entries like these: 2015:11:04-20:01:42 utm-company-2 pluto[3488]: “S_REF_IpsSitHsBranchVpn_0″[22] 80.60.50.40:816 #389: next … Read more