Re: ISA2004 kills VPN outbound

Dear Gary:
Now I understand that the problem doesn't reside at the remote side.

Here, I would suggest you use the PPTP Ping utility to perform the test and
check if the GRE packet is allowed to pass through the router:

Basically, we will use PPTP Ping utility to determine whether any hardware
router or firewall is blocking GRE Protocol 47. The router must be able to
pass Generic Route Encapsulation (GRE) protocol 47 for PPTP traffic to
connect correctly to use VPN. When a cable/DSL router cannot map GRE
protocol 47 to the Routing and Remote Access server, you cannot connect to
the server from the Internet.

a. Please run Pptpsrv.exe on the server side.
b. Run Pptpclnt.exe [ServerNameorIPaddress] on remote client.
c. When prompted by Pptpclnt.exe, type some text to send to Pptpsrv.exe,
and then click Enter.
d. You will see the text received at the host running Pptpsrv.exe. Then you
will see five GRE packets sent from Pptpclnt.exe and received at
Pptpsrv.exe.
Provide me with the output for reference.

NOTE: PPTP Ping tools (Pptpclnt and Pptpsrv) exist in Windows XP support
tools.
For your convenience, I have attached the file within this reply.

NOTE: You should stop the Routing and Remote Access service on the RRAS
(VPN) server so that PPTPSRV can bind to port 1723.

I look forward to your update! :)

Have a nice day.

Best Regards
Edward Tian(MSFT)
Microsoft CSS Online Newsgroup Support

Get Secure! - www.microsoft.com/security
======================================================
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Any input or comments in this thread are highly appreciated.
======================================================
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--------------------
| From: "Gary Karasik" <gkarasik@xxxxxxx>
| References: <Orid23ptFHA.3528@xxxxxxxxxxxxxxxxxxxx>
<HAtUGr0tFHA.780@xxxxxxxxxxxxxxxxxxxxx>
<e0BRKE1tFHA.2948@xxxxxxxxxxxxxxxxxxxx>
<mf9MV#1tFHA.3160@xxxxxxxxxxxxxxxxxxxxx>
<#3lA$15tFHA.1284@xxxxxxxxxxxxxxxxxxxx>
| Subject: Re: ISA2004 kills VPN outbound
| Date: Mon, 12 Sep 2005 06:50:13 -0700
| Lines: 324
| X-Priority: 3
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| Message-ID: <etMFnD6tFHA.3500@xxxxxxxxxxxxxxxxxxxx>
| Newsgroups: microsoft.public.windows.server.sbs
| NNTP-Posting-Host: 216.115.232.13
| Path: TK2MSFTNGXA01.phx.gbl!TK2MSFTNGP08.phx.gbl!TK2MSFTNGP09.phx.gbl
| Xref: TK2MSFTNGXA01.phx.gbl microsoft.public.windows.server.sbs:152633
| X-Tomcat-NG: microsoft.public.windows.server.sbs
|
| Also, the system originating the outbound VPN has a hardware
| router/firewall. It is open on port 1723. It will be several weeks before
I
| can test without the firewall.
|
| GaryK
|
| "Gary Karasik" <gkarasik@xxxxxxx> wrote in message
| news:%233lA$15tFHA.1284@xxxxxxxxxxxxxxxxxxxxxxx
| >I have the same problem connecting to several different VPN servers. Two
| >are SBS2003-based (RRAS) servers with inexpensive hardware routers
| >(firewalls) in front of them. One is a Windows 2000-based (also RRAS)
| >server with no hardware router.
| >
| > GaryK
| >
| > "Edward Tian" <v-edtian@xxxxxxxxxxxxxxxxxxxx> wrote in message
| > news:mf9MV%231tFHA.3160@xxxxxxxxxxxxxxxxxxxxxxxx
| >> Dear Gary:
| >> Thanks for your quick response.
| >>
| >> Can you please tell me some information about the remote VPN Server?
Does
| >> it use a hardware router or a windows-based computer to be its VPN
| >> Server?
| >>
| >> Comparing with ISA 2000, ISA 2004 increases its security level, the VPN
| >> connection will fail in some cases when a hardware firewall resides in
| >> the
| >> remote network. So, please try connecting to another remote VPN server
| >> and
| >> see if the problem persists. This will help us confirm whether the
| >> problem
| >> resides at the remote side.
| >>
| >> I look forward to your update. Thank you for your time and patience.
| >> Have a nice day. :)
| >>
| >> Best Regards
| >> Edward Tian(MSFT)
| >> Microsoft CSS Online Newsgroup Support
| >>
| >> Get Secure! - www.microsoft.com/security
| >> ======================================================
| >> This newsgroup only focuses on SBS technical issues. If you have issues
| >> regarding other Microsoft products, you'd better post in the
| >> corresponding
| >> newsgroups so that they can be resolved in an efficient and timely
| >> manner.
| >> You can locate the newsgroup here:
| >> http://www.microsoft.com/communities/newsgroups/en-us/default.aspx
| >>
| >> When opening a new thread via the web interface, we recommend you
check
| >> the
| >> "Notify me of replies" box to receive e-mail notifications when there
are
| >> any updates in your thread. When responding to posts via your
newsreader,
| >> please "Reply to Group" so that others may learn and benefit from your
| >> issue.
| >>
| >> Microsoft engineers can only focus on one issue per thread. Although we
| >> provide other information for your reference, we recommend you post
| >> different incidents in different threads to keep the thread clean. In
| >> doing
| >> so, it will ensure your issues are resolved in a timely manner.
| >>
| >> For urgent issues, you may want to contact Microsoft CSS directly.
Please
| >> check http://support.microsoft.com for regional support phone numbers.
| >>
| >> Any input or comments in this thread are highly appreciated.
| >> ======================================================
| >> This posting is provided "AS IS" with no warranties, and confers no
| >> rights.
| >>
| >> --------------------
| >> | From: "Gary Karasik" <gkarasik@xxxxxxx>
| >> | References: <Orid23ptFHA.3528@xxxxxxxxxxxxxxxxxxxx>
| >> <HAtUGr0tFHA.780@xxxxxxxxxxxxxxxxxxxxx>
| >> | Subject: Re: ISA2004 kills VPN outbound
| >> | Date: Sun, 11 Sep 2005 21:18:31 -0700
| >> | Lines: 185
| >> | X-Priority: 3
| >> | X-MSMail-Priority: Normal
| >> | X-Newsreader: Microsoft Outlook Express 6.00.2900.2670
| >> | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2670
| >> | X-RFC2646: Format=Flowed; Original
| >> | Message-ID: <e0BRKE1tFHA.2948@xxxxxxxxxxxxxxxxxxxx>
| >> | Newsgroups: microsoft.public.windows.server.sbs
| >> | NNTP-Posting-Host: 216.115.232.13
| >> | Path: TK2MSFTNGXA01.phx.gbl!TK2MSFTNGP08.phx.gbl!TK2MSFTNGP15.phx.gbl
| >> | Xref: TK2MSFTNGXA01.phx.gbl
microsoft.public.windows.server.sbs:152505
| >> | X-Tomcat-NG: microsoft.public.windows.server.sbs
| >> |
| >> | Thank you, Edward.
| >> |
| >> | > How to permit PPTP clients to access the external network through
ISA
| >> | > Server 2004
| >> | > http://support.microsoft.com/?id=838245
| >> | >
| >> | > (You can follow this article when running the CEICW Wizard:
| >> | > 825763 How to configure Internet access in Windows Small Business
| >> Server
| >> | > 2003
| >> | > http://support.microsoft.com/?id=825763 )
| >> |
| >> | Such a rule already exists.
| >> |
| >> | > Then, establish the VPN connection again, does it work this time?
| >> |
| >> | I recreated the rule after rerunning the CEICW. Problem persists.
| >> |
| >> | > If the problem persists, we may need to make a further analysis.
| >> Please
| >> | > help me gather the following information in order to narrow down
this
| >> | > issue:
| >> | >
| >> | > 1. Do you have firewall client installed? If so, please try
disabling
| >> the
| >> | > FW client and configure the client as a SecureNAT client. When we
| >> make a
| >> | > PPTP-based connection from an internal client to the internet VPN
| >> server,
| >> | > we cannot have the firewall client installed because the ISA Server
| >> | > Firewall Client program does not support a PPTP-based VPN
connection.
| >> You
| >> | > can refer to this article for more information:
| >> |
| >> | Same problem regardless of firewall-client status.
| >> |
| >> | > When you use the ISA 2004 Firewall Client program, you cannot make
a
| >> | > PPTP-based VPN connection
| >> | > http://support.microsoft.com/?id=887006
| >> |
| >> | > 2. Are you using a Linksys BEFSR41 router? The error 628 may occur
if
| >> your
| >> | > VPN server is located behind a Linksys BEFSR41 router.
| >> |
| >> | No. It's a Netgear FVM318. By the way, this all works fine under
| >> ISA2000.
| >> |
| >> | > Remote VPN Clients Cannot Log On to Network
| >> | > http://support.microsoft.com/default.aspx?scid=KB;EN-US;329858
| >> | >
| >> | > 3. If the client directly connects to the Internet, can the PPTP
| >> | > connection
| >> | > to the same VPN server work? This can verify if the remote VPN
server
| >> is
| >> | > configured well.
| >> |
| >> | I have the same problem connecting from the server. I can connect to
| >> the
| >> VPN
| >> | server from clients not behind ISA 2004.
| >> |
| >> | > If this works, would you please tell me if this problem occurs on
all
| >> the
| >> | > internal clients?
| >> |
| >> | Yes.
| >> |
| >> | > 4. Please help to gather the ISA Info:
| >> | >
| >> | > 1) Download the file from the following URL:
| >> |
| >> | > http://www.isatools.org/isainfo/ISAInfo.zip
| >> |
| >> | I will not be able to get to this until next week.
| >> |
| >> | > 2) Extract all files to a folder on ISA server.
| >> | > 3) Double click Isainfo.js. This will generate 2 files
| >> | > ISAInfo2004-<computer-name>.log and
ISAInfo2004-<computer-name>.xml
| >> in
| >> the
| >> | > current folder.
| >> | > 4) Please send these files to me.
| >> | >
| >> | > 5. Please also help to gather the ISA logs:
| >> | >
| >> | > 1) Schedule a down time.
| >> | >
| >> | > 2) Open ISA 2004 management console.
| >> | >
| >> | > 3) Expand the server node and highlight 'Monitoring'.
| >> | >
| >> | > 4) In the right pane, switch to the 'Logging' tab, make sure the
| >> 'Task
| >> | > Pane' is showed there.
| >> | >
| >> | > 5) In the 'Task Pane', click 'Configure Firewall Logging' under
| >> 'Logging
| >> | > Tasks', and then switch the 'log storage format' from 'MSDE
database'
| >> | > (default) to 'File'.
| >> | >
| >> | > 6) Switch to the 'Fields' tab, click 'Select All', and then click
OK.
| >> | >
| >> | > 7) In the 'Task Pane', click 'Configure Web Proxy Logging' under
| >> 'Logging
| >> | > Tasks', and then switch the 'log storage format' from 'MSDE
database'
| >> | > (default) to 'File'.
| >> | >
| >> | > 8) Switch to the 'Fields' tab, click 'Select All', and then click
OK.
| >> | >
| >> | > 9) Click 'Apply' to save changes and update the configuration.
| >> | >
| >> | > 10) Temporarily disable the Firewall service. To do that, please
| >> click
| >> | > Monitoring | Services tab, and then right click 'Microsoft
Firewall'
| >> to
| >> | > choose 'Stop'.
| >> | >
| >> | > 11) Clear the current existing W3C logs. To do that, go to the log
| >> saving
| >> | > directory and clean any existing .W3C logs. By default, the logs
will
| >> be
| >> | > saved to 'C:\Program Files\Microsoft ISA Server\ISALogs'. (Some
MDF
| >> may
| >> | > not
| >> | > be able to deleted, that's normal.) You may backup them first
and
| >> then
| >> | > delete them.
| >> | >
| >> | > 12) Go back to the ISA 2004 management console, and then Start the
| >> stopped
| >> | > 'Microsoft Firewall' service.
| >> | >
| >> | > 13) Reproduce the problem, stop the service, and then gather the
| >> resulting
| >> | > W3C files to me for analysis.
| >> | >
| >> | > Note: Please also let me know the IP address of the testing
| >> client/server
| >> | > and the remote VPN server so that I can filter the data.
| >> | >
| >> | > I appreciate you taking time to perform the above steps and gather
| >> the
| >> | > information. Please feel free to let me know if you have any
| >> questions
| >> or
| >> | > concerns.
| >> | >
| >> | > I look forward to hearing from you.
| >> | > Have a nice day, Gary! :)
| >> | >
| >> | > Best Regards
| >> | > Edward Tian(MSFT)
| >> | > Microsoft CSS Online Newsgroup Support
| >> | >
| >> | > Get Secure! - www.microsoft.com/security
| >> | > ======================================================
| >> | > This newsgroup only focuses on SBS technical issues. If you have
| >> issues
| >> | > regarding other Microsoft products, you'd better post in the
| >> corresponding
| >> | > newsgroups so that they can be resolved in an efficient and timely
| >> manner.
| >> | > You can locate the newsgroup here:
| >> | > http://www.microsoft.com/communities/newsgroups/en-us/default.aspx
| >> | >
| >> | > When opening a new thread via the web interface, we recommend you
| >> check
| >> | > the
| >> | > "Notify me of replies" box to receive e-mail notifications when
there
| >> are
| >> | > any updates in your thread. When responding to posts via your
| >> newsreader,
| >> | > please "Reply to Group" so that others may learn and benefit from
| >> your
| >> | > issue.
| >> | >
| >> | > Microsoft engineers can only focus on one issue per thread.
Although
| >> we
| >> | > provide other information for your reference, we recommend you post
| >> | > different incidents in different threads to keep the thread clean.
In
| >> | > doing
| >> | > so, it will ensure your issues are resolved in a timely manner.
| >> | >
| >> | > For urgent issues, you may want to contact Microsoft CSS directly.
| >> Please
| >> | > check http://support.microsoft.com for regional support phone
| >> numbers.
| >> | >
| >> | > Any input or comments in this thread are highly appreciated.
| >> | > ======================================================
| >> | > This posting is provided "AS IS" with no warranties, and confers no
| >> | > rights.
| >> | >
| >> | > --------------------
| >> | > | From: "Gary Karasik" <gkarasik@xxxxxxx>
| >> | > | Subject: ISA2004 kills VPN outbound
| >> | > | Date: Sat, 10 Sep 2005 23:56:37 -0700
| >> | > | Lines: 9
| >> | > | X-Priority: 3
| >> | > | X-MSMail-Priority: Normal
| >> | > | X-Newsreader: Microsoft Outlook Express 6.00.2900.2670
| >> | > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2670
| >> | > | X-RFC2646: Format=Flowed; Original
| >> | > | Message-ID: <Orid23ptFHA.3528@xxxxxxxxxxxxxxxxxxxx>
| >> | > | Newsgroups: microsoft.public.windows.server.sbs
| >> | > | NNTP-Posting-Host: 216.115.232.13
| >> | > | Path:
| >> TK2MSFTNGXA01.phx.gbl!TK2MSFTNGP08.phx.gbl!TK2MSFTNGP15.phx.gbl
| >> | > | Xref: TK2MSFTNGXA01.phx.gbl
| >> microsoft.public.windows.server.sbs:152337
| >> | > | X-Tomcat-NG: microsoft.public.windows.server.sbs
| >> | > |
| >> | > | Hi,
| >> | > |
| >> | > | Since upgrading from ISA2000 to ISA2004, neither the server nor
| >> clients
| >> | > | behind ISA can VPN out. Server gets error 619, clients get error
| >> 628.
| >> | > This
| >> | > | worked under ISA2000. Is there an access rule I need to set up?
| >> | > |
| >> | > | GaryK
| >> | > |
| >> | > |
| >> | > |
| >> | >
| >> |
| >> |
| >> |
| >>
| >
| >
|
|
|

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