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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?
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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
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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?
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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.
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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