DHCP providing bad Default Gateway

[Tenkiller]

I have one network port in my office. We have multiple network on that port
by using vlan tags. I switch between 2 of them periodically. Each netwrok
has a DHCP server. DHCP is provided by a Redhat Linux 4.6 server on one lan
and by a Juniper Netscreen device on the other.

A little over a week ago, this was all working fine. I would change the
vlan id on my broadcom 57xx NIC to switch networks.

However, this week, whenever I get a dhcp address from the redhat server,
there is an extra default gateway of 0.0.0.0 which prevents me from getting
anywhere.

The only change I can find that would pertain to this is a Vista Update
pertaining to DHCP (KB946456).

 

[Tenkiller]

Here is the output of an ifconfig command:

Windows IP Configuration


Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : digital-realms.com
Link-local IPv6 Address . . . . . : fe80::34ac:ff57:e625:8982%8
IPv4 Address. . . . . . . . . . . : 199.4.252.102
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 0.0.0.0
199.4.252.1

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter Local Area Connection* 7:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :

Tunnel adapter Local Area Connection* 9:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :