Ipsec opt1 wan up but no traffic

  • Hello everybody

    I have 3 wan and 1 lan.

    I have an ipsec tunnel, no problem if i use default wan.
    If i choose OPT1(2nd wan) interface, and change settings, tunnel could connect too but no traffic can pass throughout.

    Is there any additional rules  that i missed?
    There's some problems with ipsec using optional wan interface?

    Help plz!

  • anyone could help??