3G router on MPLS network

[happyatuni]

Dear all,

I currently have a 150 nodes MPLS network.  My management is anxious to join some sites with 3G routers as their centres move around a lot.

My current MPLS site as 4 x Ps with lots of PEs linking to the 150 x CEs.  Is there a way to easily link up my 3G routers to my MPLS network? I have heard DMVPN may be a solution, but not sure how to implement.

Would be great if anyone can shed some light on this.

Cheers,

Hunt

[Emperor2000]

Hello.

Have a look at MPLS over mGRE. We use that with 1921 and 2901 and 3G/4G EHWICs as CE with MPLS to the edge.

Alternatively MPLS over mGRE over IPSEC if you are using public 3G networks. Eitherway you would need to lower the MTU on inside interface to allow for the added overhead that IPSEC, GRE and MPLS adds.

Using mGRE allows you to have dynamic ip addresses on enpoints in the CE side.