Lyphe Hayter
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What is Port Forwarding?
Please explain. Thank you.
2 answer(s)
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Mr. VoIP
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Best Answer:
The job of a firewall is to Block all ports from external access, for security reasons.
In essence, port forwarding is "UnBlocking" a specified port, or range of ports that you specify as safe, or trusted, for use by specific programs, or services on your network.
For example, I use various VoIP services.
I have a linksys NAT-Router and behind that my PC and a Linksys ATA VoIP adapter for making VoIP calls.
Before I can reliably use my ATA adapter for making SIP-based VoIP calls, I had to Port Forward, or unblock SIP ports 5060-5063, and RTP ports 16384-16482. These ports can be "Forwarded" on a permanent basis, or opened on a "triggered" basis, as needed.
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More Answers
Bob G
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port forwarding is the act of forwarding a network port from one network node to another. This technique can allow an external user to reach a port on a private IP address from the outside via a NAT-enabled router.
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Mr. VoIP
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The job of a firewall is to Block all ports from external access, for security reasons.
In essence, port forwarding is "UnBlocking" a specified port, or range of ports that you specify as safe, or trusted, for use by specific programs, or services on your network.
For example, I use various VoIP services.
I have a linksys NAT-Router and behind that my PC and a Linksys ATA VoIP adapter for making VoIP calls.
Before I can reliably use my ATA adapter for making SIP-based VoIP calls, I had to Port Forward, or unblock SIP ports 5060-5063, and RTP ports 16384-16482. These ports can be "Forwarded" on a permanent basis, or opened on a "triggered" basis, as needed.
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