GRE Tunnel to Cisco Router
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 Hi i want to run a GRE Tunnel from pfSense (2.2.6) to a Cisco IOS Router. 
 The config on the Cisco router which currently runs the GRE tunnel looks like this:interface Loopback0 
 no ip address
 ipv6 address 2001:1Axx:xxxx::1/128
 !
 interface Tunnel0
 description IPv6-Uplink
 no ip address
 ipv6 enable
 ipv6 tcp adjust-mss 1424
 tunnel source GigabitEthernet0/0
 tunnel destination x.x.x.xwhat are the steps on pfsense to run this configuration ? feedback very much appreciated thanks 
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