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Liza1
New Contributor II

OSPF with virtual IPs

Hello, I need your help. I have the following issue: I work with Fortigate Firewall, and my task is to connect my network to another Cisco router. My OSPF is working fine; it sees the internal LAN networks. However, I also need to set up NAT. I need to NAT from my other LAN, 192.168.0.5, to 10.10.10.10 (for example), and ensure they can see this route. I tried using Virtual IPs, but it didn't work out. How can I set up destination NAT and advertise the route in OSPF?
FortiGate #OSPF #virtualIP 

1 Solution
Toshi_Esumi
SuperUser
SuperUser

If you have 10.10.10.10 in ippool and configured SNAT translating from 192.168.0.5 when it goes out and want to advertise 10.10.10.10 to OSPF neighbors, you can try below (static route to blackhole then reistribute static):
https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-Advertise-IP-Pool-network-into-OSPF...

Toshi

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1 REPLY 1
Toshi_Esumi
SuperUser
SuperUser

If you have 10.10.10.10 in ippool and configured SNAT translating from 192.168.0.5 when it goes out and want to advertise 10.10.10.10 to OSPF neighbors, you can try below (static route to blackhole then reistribute static):
https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-Advertise-IP-Pool-network-into-OSPF...

Toshi

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