two ISP's - VPN fails on one

Archived from groups: comp.dcom.vpn (More info?)

I have two ISP's.

1) A dial-up service, where I almost never get better than an 28.8K
connection.

2) A start-up wireless broadband service.

VPN into my office works fine over the dial-up connection. It says it
'connects' over the wireless broadband connection, but in fact I can't ping
anything in the office network.

What kind of tools can I run to try to see what the difference is? Ethereal
will capture the traffic on the wireless broadband service, but it can't see
the dialup connection.

Archived from groups: comp.dcom.vpn (More info?)

On Sat, 08 May 2004 14:55:47 GMT, Silver Surfer
<silversurfer@computer.home> wrote:

>> VPN into my office works fine over the dial-up connection. It says it
>> 'connects' over the wireless broadband connection, but in fact I can't ping
>> anything in the office network.

Make sure that you have unchecked that box regarding the gateway on
the VPN Client:

Properties ->Networking ->TCP/IP -> Properties -> Advanced -> General

>Try with nmap e see if port udp and esp (?) protocols are open.
>Be carefull with timing e mode ... be gentle :-)

Or you can use Port Detective

www.portdetective.com

to send some packets to the port under test and see if they made it to
the router with your logging utility. If the ISP is blocking that
port, you will not see it come to your router.


--

Map Of The Vast Right Wing Conspiracy:
http://www.freewebs.com/vrwc/

"You can all go to hell, and I will go to Texas."
--David Crockett

Archived from groups: comp.dcom.vpn (More info?)

On Sun, 09 May 2004 11:26:14 GMT, "Otis" <anonymous@nonexist.com>
wrote:

>> Make sure that you have unchecked that box regarding the gateway on
>> the VPN Client:
>> Properties ->Networking ->TCP/IP -> Properties -> Advanced -> General

>Now that you mention it, I see a lot of references to this in the
>newsgroups. The advise is the uncheck "Use default gateway on remote
>network".

>There are three connectoids in play here. The dialup ISP's connectoid is in
>the 'Dial Up' group in Network Connections. This connectoid has three tabs
>on the TCP/IP->Properties->Advanced pane - General, DNS, WINS.

You would want to leave it checked for an ISP - after all that's the
whole purpose, to connect to the Internet on a remote gateway.

>The other two
>connectoids - one for the wireless broadband service and one for the Cisco
>Systems VPN adapter - are in the 'LAN or High-Speed Internet' group in
>Network Connections. These connectoids have four tabs - IP Settings, DNS,
>WINS, Options. I don't have that check box for these two connectoids.

I assumed that you were running Microsoft's PPTP VPN. You will find it
in the PPTP VPN Client connection icon, if you had one.


--

Map Of The Vast Right Wing Conspiracy:
http://www.freewebs.com/vrwc/

"You can all go to hell, and I will go to Texas."
--David Crockett