Possible DHCP issue with VPN clients

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From: Mike Barry (FangaTanogoat_at_egreess.com)
Date: 10/08/04 

Date: Fri, 08 Oct 2004 13:37:02 -0400

        We use Sonicwall products, and they've been working fine when
a user VPN's into a Sonicwall 2040 using Sonicwall's Global VPN
client.

        For some reason, all of a sudden this client can't connect.
I'm writing here because I think it's a DHCP issue.

        The client is obtaining a virtual IP from the DHCP server
that's on the Windows 2000 Domain Controller. (The DC has AD going,
a DNS server, and is the only DC - it's a small office).

        The client successfully receives the IP, and then can't
connect to anything, nor can she ping anything. She's running XP Pro
Service Pack 2, and the firewall on her computer is turned off.

        There are 2 odd things about this situation. One, *I* can
connect fine from my home, either from behind a Netgear NAT router
or plugging straight into the cable modem.

        The second odd thing is that when she tries to connect and
fails, IF I delete her entry in the DHCP server she suddenly has
connectivity.

        Like I said earlier, this problem popped up just recently.
She had been VPNing in fine before with the same setup. This
problem popped up before she installed Service Pack 2 for XP,
so that isn't the issue.

        Any ideas? Thanks!

        Mike

Relevant Pages

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