03-27-2015 09:33 AM - edited 03-05-2019 01:06 AM
is it possible to make IPSEC_over GRE with secodnary IP??
Site_1 Primary IP with crypto map - Tunnelling - Site2 Secondary IP with crypto map.
03-28-2015 01:33 AM
Hello.
For ease of support I would recommend to use Tunnel interface with "tunnel protection".
In this case secondary address is supported.
In case of crypto map your concerns could be about ISAKMP source address.
04-10-2015 08:39 AM
Yes you can very well have an IPSEC encapsulated GRE Tunnel with backup Link. YOU might have to configure your router for WAN fail-over first then use Cisco Configuration professional or SDM for your GRE Tunnel configuration for ease of config
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