[pptp-server] unable to ping hosts on network

Geoff Nordli geoff at gnaa.net
Sun Oct 17 18:24:38 CDT 1999


Does anyone happen to have a link for the fix.

I can't find it on the MS ftp server.

> -----Original Message-----
> From: Carey Jung [mailto:carey at itfreedom.com]
> Sent: Sunday, October 17, 1999 4:06 PM
> To: geoff at gnaa.net; Pptp-Server List (E-mail)
> Subject: RE: [pptp-server] unable to ping hosts on network
> 
> 
> This sounds somewhat like a known bug in NT SP5.  Check out Microsoft
> knowledge base article Q236584.  Here's an excerpt.  Sound like your
> problem?
> 
> SYMPTOMS
> After you upgrade to Windows NT 4.0 Service Pack 5 (SP5), Windows NT
> 4.0-based 128-bit Remote Access Services (RAS) clients can 
> successfully dial
> in to a RAS server, but cannot access the server's network 
> adapter or any
> other device on the network. The issue occurs when you are 
> using the Require
> Data Encryption option with the Require Microsoft Encrypted 
> Authentication
> setting. The client is unable to ping any TCP/IP interface on 
> the remote
> network, including the Microsoft Virtual Private Networking Adapter
> (NDISWAN) IP address that the server assigned to the client. 
> This behavior
> does not occur with 40-bit RAS clients or Microsoft Windows 
> 95/Microsoft
> Windows 98 clients.
> 
> Routing and Remote Access Services (RRAS) Dial-on-Demand 
> (DOD) connections
> that use direct dial (Point-to-Point Protocol, or PPP), not 
> Point-to-Point
> Tunneling Protocol (PPTP), are also affected when you are 
> using 128-bit
> updates with the Require Data Encryption option with the 
> Require Microsoft
> Encrypted Authentication setting
> 
> RESOLUTION
> A supported fix that corrects this problem is now available 
> from Microsoft,
> but it has not been fully regression tested and should be 
> applied only to
> systems experiencing this specific problem. If you are not 
> severely affected
> by this specific problem, Microsoft recommends that you wait 
> for the next
> Windows NT 4.0 service pack that contains this fix.
> 
> To resolve this problem immediately, contact Microsoft Product Support
> Services to obtain the fix. For a complete list of Microsoft 
> Product Support
> Services phone numbers and information on support costs, 
> please go to the
> following address on the World Wide Web:
> 
> 
http://www.microsoft.com/support/supportnet/overview/overview.asp



> -----Original Message-----
> From: pptp-server-admin at lists.schulte.org
> [mailto:pptp-server-admin at lists.schulte.org]On Behalf Of Geoff Nordli
> Sent: Sunday, October 17, 1999 2:59 PM
> To: Pptp-Server List (E-mail)
> Subject: [pptp-server] unable to ping hosts on network
>
>
> I have attached my pptplog describing a session.
>
> I am unable to ping into the network.
>
> Any ideas why this might happen?
>
> The proxy arp is eth0, which is the internal
> network (172.16.0.0), which I assume is correct,
> since I think it is responsible for replying
> ARP requests on local network.
>
> I actually had it working temporarily last night,
> but then it broke.
>
> thanks,
>
> BTW I am also unable to get the encryption set up
> with the NT 4 SP5 client.  It says,  "the local
> computer does not support encryption".
>
> Any ideas with that?
>
> Geoff Nordli






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