Mikrotik IPSEC behind 3G router

Hi All,

Has anyone got a working config for a routerboard(doing IPSEC) sitting behind a 3G router? I’m setting up a IPSEC tunnel between a mikrotik and a pfsense but no luck so far.

Mikrotik log shows only:
phase1 negotiation failed due to time up x.x.x.x[500]<=>y.y.y.y[500] 16f14fafd4437000:0000000000000000

The 3G router is a DLINK and I’ve opened up all ports to the mikrotik behind it.

Any help appreciated.

thanks,
Ja