topic Source and Destination Port in Network Security

Source and Destination Port

Rajendran N — Mon, 11 Mar 2019 22:09:00 GMT

Hi, Please clarify my queries on the port assignment in WAN Connection

I am having a host A and Host B and trying to access Host C on same Port(Let us say port 20)...

Will This Happen

Please clarify my query

Julio Carvajal — Sun, 01 Jan 2012 22:22:55 GMT

Hello Rajendran.

Happy new year,

Yes, you can access different host on the same port, but you will nedd to mapped to a different port on the wan IP address.

Lets say you have 2 web servers that will receive traffic on port 80, and you only have one available IP(1.1.1.1)

How would you do it?

With port forwarding

static (inside,outside) tcp 1.1.1.1 80 192.168.11.2 80

static (inside,outside) tcp 1.1.1.1 81 192.168.11.3 80

So all traffic to port 80 and 81 on the wan ip address will be redirected to the web servers on the right port

Do rate helpful posts

Julio

Karthikeyan Pandi — Mon, 02 Jan 2012 06:09:44 GMT

Thanks for reply

Karthikeyan Pandi — Mon, 02 Jan 2012 06:10:01 GMT

Thanks for reply

Julio Carvajal — Mon, 02 Jan 2012 17:50:49 GMT

Hello,

My pleasure, let me know if this helps you.

Regards,

Julio