[pptp-server] Setting up PoPToP behind masq firewall

Steve Langasek vorlon at netexpress.net
Sat Oct 13 12:01:41 CDT 2001


On Sat, Oct 13, 2001 at 06:04:59PM +0100, John P wrote:
> Yes, I have a blanet rule as #1 on my ipchains on the firewall accepting all
> port 47 connections. I also have ipfwd running '--masq 10.0.0.12 47'
> (10.0.0.12 being my internal server IP). The internal server has a
> completely open ipchains setup.

This is /protocol/ 47, not /port/ 47.  IOW, 47 is the protocol number
you would pass to 'ipchains -p' if you wanted GRE, as opposed to TCP,
UDP, or ICMP.

HTH,
Steve Langasek
postmodern programmer
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