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I ran an nmap scan against my G3100 router and came across the following results. Anyone know what the services are that are running?
Nmap scan report for G3100.myfiosgateway.com (192.168.1.1)
Host is up (0.0018s latency).
Not shown: 65528 closed ports
PORT STATE SERVICE
53/tcp open domain
80/tcp open http
443/tcp open https
1990/tcp open stun-p1
4577/tcp filtered unknown
39543/tcp open unknown
46413/tcp open unknown
MAC Address: B8:F8:53:56:70:AA (Unknown)
Nmap done: 1 IP address (1 host up) scanned in 7.30 seconds
tcp/53 is likely related to DNS and both tcp/80 and tcp/443 are likely the management interface. Any thoughts on the other listening ports?
Not sure why you are interested at the ports. If you are very conscious of the security, I suggest you to buy a security gateway.
Some ports are Verizon diagnostics for STBs, MoCA devices and extender.
Some ports can be triggered to open by the request of an internal device.
Confirming what the other user said - not sure about the 1990 but the other higher ports are for STB/DVR etc.. here's some info on that - https://www.dslreports.com/faq/16710