I'm having a problem with NAT.
I have one workstation device defined on my firewall just for testing purposes (this is my initial installation).
I have this device set to NAT to the address on the external interface of the Firewall.
When I try to access an external IP, The packet is accepted by checkpoint and correctly nated. This is immediately followed by several drops of icmp packets with the source being 127.0.0.1 (or the loopback). The reason is logged as "local interface address spoofing".
I have tried both static and hide nating as outlined in my coursebook. I have tried every security setting on my firewall interfaces. I have also reviewed my route table.
(I can ping from the checkpoint firewall to devices on all sides of the interfaces)
I thought I understood this well, but can't seem to alleviate this problem. I can't access any external IP addresses.
I am running checkpoint on AIX 4.3
Any help anyone can provide would be greatly appreciated.
Thanks.
I have one workstation device defined on my firewall just for testing purposes (this is my initial installation).
I have this device set to NAT to the address on the external interface of the Firewall.
When I try to access an external IP, The packet is accepted by checkpoint and correctly nated. This is immediately followed by several drops of icmp packets with the source being 127.0.0.1 (or the loopback). The reason is logged as "local interface address spoofing".
I have tried both static and hide nating as outlined in my coursebook. I have tried every security setting on my firewall interfaces. I have also reviewed my route table.
(I can ping from the checkpoint firewall to devices on all sides of the interfaces)
I thought I understood this well, but can't seem to alleviate this problem. I can't access any external IP addresses.
I am running checkpoint on AIX 4.3
Any help anyone can provide would be greatly appreciated.
Thanks.