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Rob
Community Member

Best design for simple configuration

Hi everyone, let me apologize up front for my absolute lack of knowledge.  I'm new to routing and cisco in general.  I'm inheriting a rather simple setup but would like to approach the next steps with a good strategy.  Currently we have a 2901 router with public IP's on bother interfaces.  The internal facing interface is our gateway for some webservers and a firewall.  Not we are looking to add a colocation site and establish a site to site VPN using another 2901. My goal is to have the colocation use the same internal 10.100.0.0/23 network.  My question is what is the best way of going about this since the router at the main site has public IP's on both interfaces?  Do I need to multi-home the internal facing interface?  If so, what else needs to be done?

Thanks in advance.

Rob

1 REPLY

Best design for simple configuration

Rob,

First thing - it's never a good idea to have the same IP subnet at 2 seperate locations, you need to figure out traffic flows and your NAT.

Describe out the "other" site will connect and route?

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