when I read cisco documentation , the documentation have a words :
"!−−− You must enable process switching for IPsec
!−−− to encrypt outgoing packets. ."
ip address 10.1.4.1 255.255.255.0
no ip route−cache
I have a test . The ipsec vpn can work well , when I don't use this command "no ip route-cache" .
Must this interface be "process switching " mode in ipsec vpn ?