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Allow ICMP with PAT

mtehonica
Level 5
Level 5

From what I've read, what I would like to accomplish isn't possible.

We have 5 static IPs. 4 for servers and 1 for the firewall. I can ping the firewall fine from the outside but can't ping the other 4 IPs. Doesn't sound like its possible to configure this since ICMP doesn't use ports and the firewall wouldn't know how to route ICMP traffic to the different IPs.

Can anyone else confirm this?

Thanks!

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19 Replies 19

Yes, I did all 5 lines.  When I enter "nat (inside,primaryisp) static 96.249.40.10 service " I can only choose TCP or UDP.

mtehonica
Level 5
Level 5

I already have some NAT configured but I also need to get ICMP responses on all the IPs.

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Do you need to configure static PAT, or static NAT is OK?

From version 8.3 onwards, it seems that you won't be able to ping the static PAT IP anymore.

mtehonica
Level 5
Level 5

Yes, I need to do it using PAT.

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Still haven't been able to figure this out. Anyone else have any ideas??

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