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Step-by-Step Configuration and Troubleshooting Best Practices for the NGFW, NGIPS and AMP Technologies A Visual Guide to the Cisco Firepower Threat Defense (FTD)

Allow OSPF in ASA 5520

hi all,

i'll be inserting an ASA 5520 (ASA1) firewall and this will now be facing the ISP.

the router (R1) used to be our internet edge router and has a GRE tunnel/OSPF adjacency with the remote router (R2).

aside from allowing the source and destination IP addresses used on the GRE tunnel interface, do i add an ACE to allow OSPF and would it be the 'outside' or 'inside' interface or both?

please refer to diagram attached.

 

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