weird VPN issue from XP guest, in Virtual Server 2005
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weird VPN issue from XP guest

Source: microsoft.public.virtualserver
Sent: 12/04/2009
From: Bo Berglund <(email address - cut out)>
Message:

I have encountered a weird problem with an XP Pro guest when I use
Microsoft VPN:

- I create the connection in the new connection wizard
- I set it to use PPTP VPN
- I also set it to show logon domain, otherwise it is default
- When I use it to connect it does so just fine.
- But whenever I try to reach anything on the remote network it fails!

So I looked at what would happen if I ping and this is the result:

If I ping by name I get this result:
c:\>ping dc02

Pinging dc02.bredbandsbolaget.se [208.67.217.132] with 32 bytes of
data:

Request timed out.

Ping statistics for 208.67.217.132:
Packets: Sent = 1, Received = 0, Lost = 1 (100% loss),

But if I use the IP address to do the ping it works:

c:\>ping 10.0.0.7

Pinging 10.0.0.7 with 32 bytes of data:

Reply from 10.0.0.7: bytes=32 time=190ms TTL=128

Ping statistics for 10.0.0.7:
Packets: Sent = 3, Received = 3, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 188ms, Maximum = 190ms, Average = 189ms

The extra .bredbandsbolaget.se that was added to the name shows the
name of my ADSL provider so apparently there is a DNS request being
passed through to another connection rather than the VPN I intended it
to go through!

The name resolution should go through my HOSTS file since the VPN does
not for some reason forward the DNS requests either. So I had added
the server to the hosts file like this:

10.0.0.7 DC02

*Always* in the past when I have dealt with networking issues it has
worked to put an entry into the HOSTS file if name resolution did not
happen.

But now all of a sudden the name resolution is no longer done via the
hosts file by the looks of it.

I have two recently created XP-Pro SP3 guests thta behave the same
way.

Finally, ipconfig / all gives this (slightly edited):

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : bredbandsbolaget.se

Physical Address. . . . . . . . . : 00-0C-29-0D-93-36
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 192.168.0.138
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.129
DHCP Server . . . . . . . . . . . : 192.168.0.129
DNS Servers . . . . . . . . . . . : 192.168.0.129

PPP adapter AGI-VPN:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Physical Address. . . . . . . . . : 00-53-45-00-00-00
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.0.0.160
Subnet Mask . . . . . . . . . . . : 255.255.255.255
Default Gateway . . . . . . . . . : 10.0.0.160
DNS Servers . . . . . . . . . . . : 10.0.0.7
10.0.0.4
Primary WINS Server . . . . . . . : 10.0.0.4


Could it be some Windows update issue at play here? Both of the guests
were allowed to get all of the Windows updates before I started using
them.

--

Bo Berglund (Sweden)



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