[isalist] Re: VPN in ISA Server 2004
- From: "Tiago de Aviz" <Tiago@xxxxxxxxxxxxxxx>
- To: <isalist@xxxxxxxxxxxxx>
- Date: Wed, 03 May 2006 13:31:46 -0300
That's why I recommend so much a solution like ISA 2004 and a cheapo VPN
router that supports IPSec. Dude, it's worderful and cheaper than
filling up my car at the gas station =)
Tiago de Aviz
SoftSell - Curitiba
(41) 3340-2363
www.softsell.com.br
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>>> mjjdejonge@xxxxxxxxxxxxxxxxxxxxxxxx 3/5/2006 12:45 >>>
Hi TiagoI agree as well This could be a point of I have read before The
Clients behind ISA VPN'ing against an ISA works perfect for me as well
This would be a I think a linux / unix issue. One of the reasons I am
looking for a different pptp solution. Hope this helps If you need some
url about this pls just ask if not I would like to stay on this topic.
Regards, Mario
From: isalist-bounce@xxxxxxxxxxxxx
[mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Thomas W Shinder
Sent: Wednesday, May 03, 2006 5:26 PM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: VPN in ISA Server 2004
Hi Tiago, OK, that's definitely a problem too. :)
Thomas W Shinder, M.D.
Site: www.isaserver.org
Blog: http://blogs.isaserver.org/shinder/
Book: http://tinyurl.com/3xqb7
MVP -- ISA Firewalls
From: isalist-bounce@xxxxxxxxxxxxx
[mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Tiago de Aviz
Sent: Wednesday, May 03, 2006 9:36 AM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: VPN in ISA Server 2004Hm, I always had issues
when more than one client behind Linux IPTABLES tries to open a PPTP
tunnel against an ISA Server.
Maybe I didn't express myself correctly. It's not an ISA limitation,
it's an iptables limitation that can't NAT two tunnels going to the same
external IP address, if both clients on the linux side are Snat'ed to
the same external ip address.
Clients behind ISA VPN'ing against an ISA works perfect!
Tiago de Aviz
SoftSell - Curitiba
(41) 3340-2363
www.softsell.com.br
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conteúdo é restrito ao destinatário da mensagem. Caso você tenha
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>>> tshinder@xxxxxxxxxxx 3/5/2006 10:11 >>>
This is NOT a PPTP or L2TP issue, its a problem with the destination
VPN endpoint.
Thomas W Shinder, M.D.
Site: www.isaserver.org
Blog: http://blogs.isaserver.org/shinder/
Book: http://tinyurl.com/3xqb7
MVP -- ISA Firewalls
From: isalist-bounce@xxxxxxxxxxxxx
[mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Cristovao
Sent: Wednesday, May 03, 2006 8:10 AM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: VPN in ISA Server 2004With L2TP is possible
create multiple tunnels coming from the same external IP address? Tank
You.
From: isalist-bounce@xxxxxxxxxxxxx
[mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Tiago de Aviz
Sent: quarta-feira, 3 de maio de 2006 09:34
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: VPN in ISA Server 2004
I might be mistaken, but you're probably trying to open multiple PPTP
tunnels coming from the same external IP address. No go, my friend.
You'll have to create a site-to-site tunnel.
Tiago de Aviz
SoftSell - Curitiba
(41) 3340-2363
www.softsell.com.br
Esta mensagem, incluindo seus anexos, tem caráter confidencial e seu
conteúdo é restrito ao destinatário da mensagem. Caso você tenha
recebido esta mensagem por engano, queira por favor retorná-la ao
destinatário e apagá-la de
seus arquivos. Qualquer uso não autorizado,
replicação ou disseminação desta mensagem ou parte dela é expressamente
proibido. A SoftSell não é responsável pelo conteúdo ou a veracidade
desta informação.
>>> cristovao@xxxxxxxxx 30/4/2006 15:31 >>>
I have ISA inside network because standard in this organization is:
Borders Firewalls: Checkpoint or Linux. This standard is used in
all locations. I don't understand because one client work's fine.More
clients work's fine, one client per location.Problem only two client in
one location. Tank you.
From: isalist-bounce@xxxxxxxxxxxxx
[mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Andrew English
Sent: domingo, 30 de abril de 2006 11:43
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: VPN in ISA Server 2004
Why do you have ISA 2004 inside your network? Could be that your not
passing all the information from your Linux box to the ISA Firewall
correctly, and it could be that you don't have the VPN setup correctly
on ISA 2004 Server or your client setup correctly. Andrew
From: isalist-bounce@xxxxxxxxxxxxx
[mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Cristovao
Sent: Saturday, April 29, 2006 3:26 PM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] VPN in ISA Server 2004
I have this situation: Location one:
10.11.0.X; Link with dedicated IP;
Firewall Linux with iptables (Slackware 10.2);
Windows 2003 Server Std; Isa Server
2004 in internal network: Proxy and VPN; VPN in
PPtP. External Clients: 10.12.0.X;
Link ADSL; Firewall Linux
with iptables (Slackware 10.2); Windows XP with
SP2; 4 Workstations. Problemas:
The first workstation in External Clients connect in
VPN successfull; The second workstation in
External Clients don't connect with error 721in authentication;
If disconnect the first client the second worksation not
connect; If wait just moments the second
workstation connect successfull, but de first workstation not connect.
Help, please.
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