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Legacy Forums => Experienced User Forum => Topic started by: Brian Kirk on November 25, 2002, 07:11:15 AM

Title: PPTP setup help
Post by: Brian Kirk on November 25, 2002, 07:11:15 AM

Sorry cant find the answer to this one although there have been numerous postings on this subject. Have setup a new 5.1.2 box and can PPTP to it on the internal card but not the external and yes have turned on 1 PPTP client and ext ip  to port 1723 appears to accepted in ipchains. Am I missing something obvious?
Regards
Brian

Title: Re: PPTP setup help
Post by: Bill Talcott on November 25, 2002, 05:10:44 PM

Do you have any other hardware (firewall, router, etc.) between the SME and the internet? It should be relatively Plug n Play. Just enter the IP/hostname of the SME into the client and click connect...

Title: Re: PPTP setup help
Post by: Rob Wellesley on November 26, 2002, 02:34:23 AM

Some adsl routers will not pass thru VPN

Title: Re: PPTP setup help
Post by: Alan Lawrence on November 26, 2002, 01:30:38 PM

If using a router you need to allow / forward protocol 47 ( GRE )

Title: Re: PPTP setup help
Post by: Brian Kirk on November 26, 2002, 01:51:54 PM

Thanks to those who made suggestions. I perhaps did not make myself clear - I was testing the SME  by a direct crossover cable to the external card. Tonight I connected it to a router, opened 1723 on the router and I can PPTP via internet to it :). However, using this same ip address on the external card and a direct connection still wont connect. I would like to know why but am happy that it works in the real world situation.
Regards
Brian

Title: Re: PPTP setup help
Post by: ilpuco on November 26, 2002, 07:02:32 PM

Brian said
"I was testing the SME by a direct crossover cable to the external card"

you have to use a straight cable to connect 2 systems directly, not a crossed one.

ilpuco

Title: Re: PPTP setup help
Post by: Jochen Hoegerl on November 26, 2002, 10:56:18 PM

> you have to use a straight cable to connect 2 systems directly, not a crossed one.

??? So, why does some manufactorers sell networkkits with 2 nic's and a
crossover cable if it doesn't work. ???

Title: Re: PPTP setup help
Post by: Dan Brown on November 26, 2002, 11:03:29 PM

Because ilpuco is wrong.  If you're connecting two computers directly without a hub or switch, you use a crossover cable.

Title: Re: PPTP setup help
Post by: ilpuco on November 27, 2002, 03:32:29 PM

Yap! I stand corrected!
That's what happen when you rush into things without thinking!
Sorry, I apologize to all....thanks Dan

Title: Crossover vs. straight through
Post by: Bill Talcott on November 27, 2002, 08:54:13 PM

Yeah, hubs and NICs "go together". You use straight through cables to connect them. If you connect two of the same, you need a crossover cable to switch one end around, so the two can talk to each other. An uplink port is basically just a reversed jack, so that you can use a straight through cable on it.

Title: Re: PPTP setup help
Post by: Andy Parkinson on November 28, 2002, 02:00:49 AM

It would be interesting to know if you can ping the SME when connected directly to it. If you cannot then we are looking at a more general network connectivity problem. One problem that I have had when connecting network cards directly together is that the autosensing of media type ie 10 or 100 full or half duplex tends to get confused. I would suggest forcing the cards to be at say 100 meg half duplex and see if that resolves the problem.