Internet Peer to peer through intervening firewall

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2 total messages Started by Ken Sat, 26 Jun 2004 04:26

#5628

Author: Ken
Date: Sat, 26 Jun 2004 04:26

12 lines
1289 bytes

I'm developing a peer to peer internet program that needs to be able to work
behind firewalls.

So if a DSL Router is address 222.50.50.50, computers behind it are
192.128.1.1

Is there a way to "Push" the data I'm putting out on an aribtrary port out
to the firewall so that clients on the world wide web can read it?

Thank you

-Ken P

Re: Internet Peer to peer through intervening firewall

#5629

Author: Remy Lebeau (TeamB)
Date: Sat, 26 Jun 2004 06:51

22 lines
1717 bytes

"Ken" <macmidas@surewest.net> wrote in message
news:40dcfafb@newsgroups.borland.com...

> Is there a way to "Push" the data I'm putting out on
> an aribtrary port out to the firewall so that clients on
> the world wide web can read it?

There are only two ways to get data through a router/firewall:

1) an outside client connects to a server behind the firewall, with the
firewall/router set up to perform port forwarding so that the outside
connection can reach the IP/port that the server is actually listening on.

2) a client behind the firewall connects to an outside server, with the
firewall/router set up to allow outgoing connections.

#2 is the easier to manage, especially since it is the usually the default
configuration for a firewall/router anyway.  #1 has its uses, though.


Gambit

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