Joining Networks over the Internet with a Gateway to Gateway VPN

Joining Networks over the Internet with a Gateway to Gateway VPN

Post by Marcelo Go » Sun, 18 Jul 2004 22:58:34


Hello,

I followed the directions in many how-to articles (including the
http://www.yqcomputer.com/ ) and after
several attempts and tests I decided to post my doubt in this group in
search of tips.

My Configuration:

Site A: SBS2000, ISA sp2
Local: 192.168.51.2 / 255.255.255.0
Internet: 200.176.x.x

Site B: SBS2000, ISA sp2
Local: 192.168.48.2 / 255.255.255.0
Internet: 200.176.y.y

After followed the directions in
http://www.yqcomputer.com/

Site A can see all of the machines of the site B. The machines of the site A
can navigate in the Internet without problems.

Site B can see all of the machines of the site A, but the machines of the
site B CANNOT navigate in the Internet.

Ping and tracert to externals IPs (200.x.x.x) works.
Name Resolution (dns) from command line works fine.
Seemingly ISA stops serving the requests from site B when VPN is
established.

Does anybody have some suggestion of the one what I should verify?

Thank you,

Marcelo Goulart

ps: Seeking for a solution in the Internet, I found other user with a
similar problem:

http://www.yqcomputer.com/ ;f=13;t=002438
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I have 2 sites : 1 running SBS 2003 Server (with ISA 2000) and the other
running 2003 Server with ISA 2000. Each site has ISA configured and working
properly over a broadband connection to the 'External' network card.

I have followed the Chapter 4 tutorial: "ISA Server 2000 Gateways on each
site" configured to use a PPTP connection only and have come up against a
problem.

When the remote site connects to the main branch I have access to all the
network resources over the VPN which is great but the clients PC's and
server at the remote site lose internet access.

I can ping internet sites from the server using domain name and/or IP
address so I don't think it's a DNS problem. When I manually disconnect the
main_branch interface within RRAS full functionality is restored.

I'm 100% sure that this is a routing problem but is proving difficult for me
to resolve. Has anyone has a similar experience who can maybe point me in
the right direction ?

Thanks
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Joining Networks over the Internet with a Gateway to Gateway VPN

Post by Marcelo Go » Wed, 21 Jul 2004 09:18:13

I think that I found a solution:

http://www.yqcomputer.com/ %40TK2MSFTNGP11.phx.gbl&rnum=1&prev=/&frame=on

I will test tomorrow in the morning. Now, I lost the TS connection during my
last tests and doesn't have anybody in the office for reset the server...
:-(

Thanks to Les Connor [SBS MVP], Damian N. Leibaschoff and Luis Carvalho.

Marcelo Goulart


"Marcelo Goulart" < XXXX@XXXXX.COM > escreveu na mensagem

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