Exchanging the keys

Copy from host "foo" /etc/isakmpd/local.pub to /etc/isakmpd/pubkeys/ipv4/ip-of-host-foo 
on Host "bar"

Copy from host "bar" /etc/isakmpd/local.pub to /etc/isakmpd/pubkeys/ipv4/ip-of-host-bar
on Host "foo"