06-30-2016 03:24 AM
Dears,
We want to use Point Of Sale (POS) machine to connect to the public IP of the ASA through SSL port 443, and then ASA will have to forward the traffic to the Server on port 6000 which would be placed behind the ASA.
Server-----<<Intranet>>--------(ASA)-----<<Internet>>---------POS machine
Port 6000 port 443
Can this be done through port-forwarding?
Thanks
06-30-2016 05:57 AM
Hi,
I am not sure what this has to do with VPNs other than using the port TCP/443
I assume your problem is that both the ASDM and SSL VPN on an ASA firewall use the port TCP/443?
If that is the problem then you could naturally change both the ASDM management port used and also the SSL VPN used port. Though in my opinion changing the SSL VPN port probably is a bit problematic as this need to be taken into consideration by the user.
ASDM port can be changed with command
http server enable port <port>
The SSL VPN port can be changed with commands
webvpn
port <port>
I am a bit rusty as I have not participated on these forums for some time now. The ASDM port changed should not be a big problem for the admin though it might cause confusion if happen to forget that the default port was changed.
I am not completely sure about the implications of changing the default SSL VPN port. Atleast you will need to take into consideration the nondefault port when connection as it will have to be added with the VPN device IP address when connecting.
IF you are just looking for the configuration format of the Static PAT then it would be the following
Software version 8.2 and below
static (sourceint,destinationint) tcp interface 443 <internal host> 6000 netmask 255.255.255.255
Allow traffic to the "interface" IP address and into the port TCP/443
Software version 8.3 and above
object network POS-STATIC-PAT
host <internal host>
nat (sourceint,destinationint) static interface service tcp 6000 443
Allow the traffic to the "internal host" IP address and into the port TCP/6000
Hope this helps
- Jouni
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