Port fowarding Command

[austin.duncan1]

I need to setup port forwarding from a secure network to ba able to access on a mobile app.  I am told I need to open ports 8100 and 8101. can somebody please assist on this?

[Jon Marshall]

Is this on a router or an ASA firewall (if firewall what version of software).

Is this via the internet or from another private network ?

What is the real IP you need to access (or IPs) and what IP or IPs do you want to use to do the translation ?

The more details the easier to help.

Jon

[austin.duncan1]

My apologies i menat to include theis.  It is on a router model # 1941. Basically we need acces to a server from iphones/ipads and from web clients. As a security technician  I can not supply the IP we need to reach on this post. 

[Jon Marshall]

Okay so can you answer the following -

the server is presumably using a private IP ?

The public IP, is it assigned to the outside interface of your router or is it a spare one from the same IP range ?

Do you already have "ip nat inside" and "ip nat outside" on the relevant interfaces ?

I am assuming you do for general internet access for your internal clients.

If you can answer the above I can give you an example.

Jon

[Jon Marshall]

I have to log off now but as an example and assuming you already have NAT defined on the interfaces it would look like this -

"ip nat inside source static tcp <real IP of server> 8100 <public IP> 8100"

or if the public IP you are using is assigned to the interface then -

"ip nat inside source static tcp <real IP of server> 8100 interface <x/y> 8100"

and then you need the same command for the other port.

Jon