topic Port Translation (Non to Standard Ports) in Network Security

Port Translation (Non to Standard Ports)

Edridgee13 — Tue, 12 Mar 2019 01:20:46 GMT

Hi Guys

I would like some advise/ideas on the best solution for the below.

I have a application server which uses non standard HTTP/HTTPS ports.

What I want is a solution to translate these ports to standard ports.

Client 1 accesses the site on port 80 – from a gateway or something similar – the gateway accesses the application server on port 4466 etc and presents the site to the client on port 80.

I have various application servers which use non standard ports and want to create a central solution so that all three of my clients will not have to make any changes to the firewall/ proxy servers as to them they will be accessing the site on a standard port 80.

Any advise much appreciated.

Many thanks

Port Translation (Non to Standard Ports)

jocamare — Wed, 27 Mar 2013 20:07:57 GMT

There's a little thingy called "port-forwarding" and is the perfect solution for you.

Here is a link with information about it:

http://www.cisco.com/en/US/products/ps6120/products_tech_note09186a0080b80d74.shtml#forwarding

In case it doesn't suffice, let me know.

Port Translation (Non to Standard Ports)

Edridgee13 — Wed, 27 Mar 2013 20:29:44 GMT

Thanks for this it looks like a good solution.

Would this work if i had multiple ports ?

I want to present all my non standard ports as standard ports 80.

test.com:4445

test.com:4456

test.com:8776

Will this also solve my Proxy and outbound traffic firewall issue at my clients site.

i.e they will allow the traffic through as normal?

Port Translation (Non to Standard Ports)

jocamare — Wed, 27 Mar 2013 21:24:22 GMT

The translation is from one port to another, not many to one.

Meaning that we can't redirect all three ports to just one on the outside.

We have to use one port per IP.

Would this work if i had multiple ports ?

Only if you have multiple addresses.

Like:

Test1.com:80---internalTest1.com:4445

Test2.com:80---internalTest2.com:4456

Test3.com:80---internalTest3.com:8776

They will allow the traffic through as normal?

Yes, the clients in the outside will just go to the websites as usual, the whole process will be transparent for them.

Port Translation (Non to Standard Ports)

Edridgee13 — Wed, 27 Mar 2013 21:39:06 GMT

Thanks Jo