RE: Multicast/Broadcast over vpn
- From: v-yanniw@xxxxxxxxxxxxxxxxxxxx ("Jenny wu [MSFT]")
- Date: Thu, 12 Jan 2006 06:23:09 GMT
Hi Hogie,
Thanks for using the SBS newsgroup.
>From your description, I understand the issue to be: VPN client can not
access the message program. If I am off base, please don't hesitate to let
me know.
By default, the SBS do not control UDP traffic. Based on my experience, the
problem may caused by network connection. Let's check the following
settings:
I. Please ensure enable NetBIOS over TCP/IP on client computers, please
check the settings.
1. Right-click My Network Places, and then click Properties.
2. Right-click the external network adapter''s Local Area Connection icon,
and then click Properties.
3. Click Internet Protocl (TCP/IP), and then click Properties.
4. Click Advanced.
5. Click the WINS tab.
6. Click "Enable NetBIOS over TCP/IP".
7. Click OK, click OK, and then click OK.
II. Please run command "ipconfig /all" to get IP report, pleas double check
the VPN connection has correct gateway, DNS settings (it must be the SBS
internal IP address).
After verified above settings to see if the issue disappears.
If the issue persists, please help me collect some information to isolate
the issue:
1. How you setup the VPN connection? Using Microsoft network connection or
some third party application? What is the VPN connection gateway?
2. What is your meaning of "but cannot see the remote vpn client and the
remote client cannot see the office users."? Can you tell me more detail.
3. When the VPN connection access the message program, what the exact error
message it received? Can you capture a screen shot of the symptom?
4. Have you installed ISA on the server box? if yes, please enable ISA Web
Proxy and Firewall service logs for analyze:
To gather the ISA Web Proxy and Firewall service logs when reproducing the
problem:
Enable the full Web Proxy/firewall logging option:
a. Open ISA management console.
b. Expand the server node and highlight ''Monitoring''.
c. In the right pane, switch to the ''Logging'' tab, make sure the ''Task
Pane'' is showed there.
d. 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''.
e. Switch to the ''Fields'' tab, and then click ''Select All''.
f. Click OK, and then click ''Apply'' to save changes and update the
configuration.
g. Click ''Configure Firewall Logging''. Do step d~f to enable the full
logging options for firewall logging.
Prepare to take the trace:
a. Temporarily stop the Firewall service to clear the current existing W3C
logs: Monitoring->Services tab, and then right click ''Microsoft Firewall''
to choose ''Stop''.
b. 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.)
c. Go back to the ISA management console, and then Start the stopped
''Microsoft Firewall'' service.
Reproduce the problem:
a. Go to the external client computer. Try to access the RWW web site.
b. Go back to the ISA server. Stop the ''Microsoft Firewall'' service. Open
Windows Explorer, navigate to the ISA log file folder. Collect the recent
w3c files. Save them to a zip package as ''isalogs.zip''. Start the
''Microsoft Firewall'' Service.
c. Send the zip packages to me at v-yanniw@xxxxxxxxxxxxx
5. Could you find any related error event on the VPN client computer or
server? If yes, please paste the detail information on the newsgroup.
Have a nice day!
Sincerely,
Jenny Wu
Microsoft CSS Online Newsgroup Support
Get Secure! - www.microsoft.com/security
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--------------------
>Thread-Topic: Multicast/Broadcast over vpn
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>From: =?Utf-8?B?RkRTIEhvZ2ll?= <one@xxxxxxxx>
>Subject: Multicast/Broadcast over vpn
>Date: Wed, 11 Jan 2006 10:16:02 -0800
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>How can I configure a vpn connection with SBS 2003 to allow a client to
>connect to a LAN messenger program that uses UDP broadcast/multicast
packets?
> The vpn connects and the user can access all other server resources fine.
>The program uses UDP port 19771. The office clients can send/receive
>messages but cannot see the remote vpn client and the remote client cannot
>see the office users.
>
>Thanks,
>
>Hogie
>
.
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