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Port forwarding to internal hosts with the same port number

J
The Many
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Hello,

I have a client who recently had Comcast install a new cable modem (CBR2-T) and this broke their credit card machines.  Long story short the new Comcast Cable modem cannot forward different incoming requests on different ports to different internal hosts on the same port.  The old cable modem could do this!  Basically, I want to do this:

78.100.200.50:6000 → 192.168.1.10:6000

78.100.200.50:5999 → 192.168.1.11:6000

(IPs are for example purposes only and not real)

The Arris G54 is listed as an approved Comcast cable modem and before I have the client purchase it I want to be sure the port forwarding will work as I described above.

Thanks,

Jerry

Best answer by SURFboard Support

Hello ​@JerryI,

 

Thank you for reaching out.  We checked with our developers to confirm the port forwarding configurations works on the G54.  This is an example of the port forwarding setup you described.

 

 

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2 replies

S
Wi-Fi Warriors
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Hello ​@JerryI,

 

Thank you for reaching out.  We checked with our developers to confirm the port forwarding configurations works on the G54.  This is an example of the port forwarding setup you described.

 

 

SURFboard Support Team
J
The Many
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  • JerryIThe Many
  • Author
  • The Many
  • 1 reply
  • March 13, 2025

Thank you!  I will inform my customer that they will need to purchase the G54.

Jerry

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