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KevinC123's avatar
KevinC123
Aspirant
Jan 03, 2022
Solved

Does the CM1000v2 cable modem have a firewall?

When I scan two specific ports from outside my home they show as blocked.   nmap -Pn -T4 -p 25,9000 "IP address" Starting Nmap 6.40 ( http://nmap.org ) at 2022-01-03 16:54 UTC Nmap scan report fo...
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  • FURRYe38's avatar
    FURRYe38
    Jan 03, 2022

    CM series modems are modems only. No built in router or firelwall. If you have the CM series modem, you'll need to connect a external wifi router to the modem then configure as needed. Most current router firewall are all automatic with little or no user configurations needed. 

     

    If you need a actual firewall applicance device, then you need to connect a firewall device. Do a search as there are many. Sorry, I can't recommend anything. 

FURRYe38's avatar
FURRYe38
Guru - Experienced User
Jan 03, 2022

Possible. Might try "R6400 port foward configuration" as a title and post. 

 

Remove the firewall data also...