Restrictions of free WILL

I want to use the GRE + IPSec on a x 25 infrastructure in a site to site VPN topology. Is this possible? Is it possible to use the GRE with x 25 or not? Are there restrictions?

Thank you

I don't see why it wouldn't work.

All that requires that the GRE is IP layer connectivity. If the two ends can ping each other, then the GRE work.

Similarly for IPSec.

Tags: Cisco Security

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