If I have the following configuration below which port translate 10.10.10.1 to 172.16.131.154 on port 25.
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ip nat inside source list 7 interface serial 0 overload
ip nat inside source static tcp 10.10.10.1 25 172.16.131.254 25
interface e 0
ip address 10.10.10.254 255.255.255.0
ip nat inside
interface s 0
ip address 172.16.131.254 255.255.255.0
ip nat outside
access-list 7 deny host 10.10.10.1
access-list 7 permit 10.10.10.0 0.0.0.255
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Question:
- is the ACL 7 denying the 10.10.10.1 is still require?
- if you have it, is that mean that the server is allowed to go out on port 25 only and will that be allowed to use the S0 IP address?
- if i remove the ACL 7, is the server will use the S0 ip address when accessing outside using ports aside port 25?
Thanks in advnace