Ways to use ports without changing the router

By wanderer11387 ·
The problem I have deals with using certain ports that seem to be inaccessible. My predicament is that I could use port forwarding probably if I could access the router, but the problem is that I can't. I'm using my college's LAN ethernet line and they put up a firewall to block certain ports. The ports that I need access to include:

TCP: 80, 443, 9946, 42100, 14310-14328, 15310-15328

UDP: 3659, 6000, 9570, 17502

It was suggested to use port forwarding in case the router uses a NAT type, which it does (type 2). Seeing as how the school is running the LAN line, I was wondering if anyone knew a trick to get around the NAT type or firewall to somehow gain access to these ports.

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Speak with the network admin...

by cmiller5400 In reply to Ways to use ports without ...

If the ports are required for legitimate purposes, the network admin should be able to have them approved and opened.

No advice here on how to circumvent policy's put in place to protect networks.

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That is a crapton of ports you want open

by seanferd In reply to Ways to use ports without ...

on a network that doesn't belong to you. Better talk to the network administrators.

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it is

by wanderer11387 In reply to That is a crapton of port ...

But the truth of the matter is it's not technically for school activities lol in reality its for extracurricular activities. I live on campus and I'm trying to connect a gaming system to the LAN line, but some games don't work without those ports. From what I gather, those ports serve strictly that purpose, so I could see the admin's hesitance to allow their usage. Although I don't know how the system could be compromised with just those ports seeing as how other ones work.

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Those ports are not blocked for security reasons.

by robo_dev In reply to it is

Allowing an open port is only a risk if there is a server listening on that port behind the firewall. It's like if you leave the window open on a house, it's not a security risk if there is nothing inside to steal.

There are some ports, such as those used for gaming or peer-to-peer file sharing which may be locked down more securely mostly for bandwidth issues, not security.

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I'd guess you're behind a NAT?

by TobiF In reply to it is

What kind of ip-address do you get for your connection?
If you want to open these "common ports", then chances are that 100 other guys want the same ports, for the same reasons?
(If your address begins with 10, 172.16-172.31 or 192.168, then you're behind a NAT)

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