01-16-2020 02:06 AM - edited 02-21-2020 09:50 PM
Good Day,
To make use of a Site to Site connection between HQ and a Branch office am i correct in saying if i use ospf as the routing protocol to advertise routes between the two i need to use GRE over IPSEC as it supports Multicast. If i just use IPSEC it will not advertise routes between the routers ?
Regards
Melvin
01-16-2020 02:24 AM
Hi,
Yes, use a route based VPN (VTI or GRE/IPSec), assuming it just between 2 sites (HQ and Branch) then use a FlexVPN sVTI (Static Virtual Tunnel Interface) and redistribute the routes via a dynamic routing protocol. Example here.
If it's between HQ and multiple Branch sites then you a Dynamic VTI on the HQ router with a sVTI on the branch sites. Example here.
HTH
01-16-2020 08:45 PM
Thanks for the reply. I would not be able to use vti unless both routers are Cisco correct?
Regards
01-17-2020 01:00 AM
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