01-11-2019 08:06 AM - edited 03-05-2019 11:10 AM
Pretty basic issue here (core problem of a larger issue)... I have a port forward setup:
ip nat inside source static tcp 198.168.1.10 1111 [our public IP address] 1111 extendable
Works fine. But I would like to NAT the source IP to be an internal address, which I do here:
ip nat outside source static [external Internet address] 198.168.1.11
NAT table looks as intended now:
Pro Inside global Inside local Outside local Outside global
tcp [our public IP]:1111 192.168.10:1111 192.168.11:57164 [external Internet address]:57164
However, once I do this, the routing breaks. I can't get back and I have an Incomplete ARP entry for 198.168.1.11.
I have attempted to correct this by adding in
ip route 198.168.1.11 15 255.255.255.255 GigabitEthernet0/0 (our Internet connected interface)
Can anyone provide some insight into what is going on or how to troubleshoot? Thanks
01-11-2019 12:10 PM - edited 01-11-2019 12:10 PM
Please note:
This relates an original thread already open. - here
01-11-2019 12:24 PM - edited 01-11-2019 12:25 PM
Adding the static route should have fixed it as it is to do with the order of NAT and routing.
Instead of manually adding a route when you configure your "ip nat outside ..." statement do you have the "add-route" option you can use ?
It is essentially doing the same thing but worth seeing if it does what you want.
Jon
01-11-2019 12:50 PM
Hi Jon,
Paul from above has been very kindly providing suggestions in the other thread he linked to.
I've tried the add-route option previously, but it did not make any difference. I've just tried again now, but to avail.
01-11-2019 01:46 PM
Hello
Based on your last post in the other thread regards having two outside interfaces and wanting to nat internally atached is a working sample:
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