Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Community Member

nat on fw query

SCENARIO;

PC--(in)FW(out)--(RTR)--internet--internet user

STATIC NAT:

PC_Ip----(NAT)----FW_IP(out)

PC_Ip - ip address of the PC

FW_IP(out) - any ip address within the subnet of the out interface of the FW(out)

QUESTION;

if a traffic is initiated from the internet user and directed to the FW_IP(out), what will be the source IP address as seen by the PC?

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Blue

Re: nat on fw query

Hi

The source IP address will be the original IP address of the PC on the Internet. You can NAT this to something else as it hits your firewall but in the example you give your are only NATting the destination address as packets arrive from the Internet user.

HTH

Jon

1 REPLY
Hall of Fame Super Blue

Re: nat on fw query

Hi

The source IP address will be the original IP address of the PC on the Internet. You can NAT this to something else as it hits your firewall but in the example you give your are only NATting the destination address as packets arrive from the Internet user.

HTH

Jon

101
Views
0
Helpful
1
Replies
CreatePlease to create content