Windows 7 keeps adding default route to all network interfaces
Greetings. I am using my Windows 7 Enterprise laptop with both wired and wireless connection turned on. For most of the time, I only use wired to access my network services and internet (via proxy) and it works well. When I need unrestricted net access, I simply remove the default route for my wired network, as shown below: Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 10.222.96.1 10.222.96.43 20 <---- Wired (dhcp) 0.0.0.0 0.0.0.0 192.168.0.1 192.168.0.23 25 <---- Wireless (dhcp) ... > route delete 0.0.0.0 mask 0.0.0.0 10.222.96.1 Ok! After which I am still able to access most network services, while internet traffic is routed through the wireless network. (After disabling proxy). My problem is this: After I leave the laptop in such a configuration for some time (screensaver or sleep mode is active), the default route for wired network is back after resuming. This causes me some annoyance, as I must reopen administrative command prompt and retype the route delete command if I wish to continue using internet via wireless network. I am guessing that the DHCP client renews its address upon waking from sleep, which causes the route table to be updated. Is there a way to prevent this in this specific instance? (User manually deleted the route - it should stay deleted until the user connects to a different network, issues an ipconfig /renew command or re-adds the route). Static IP addresses are not an option, as I tend to move between different subnets on my wired network. It seems like a minor issue, but it I find it annoying if my operating system tries to help me too much. Thanks,
November 23rd, 2010 8:43am

I haven't tried, but I guess you could make the cost of the wireless less than the wired to make it the preferred interface. Try: route -p add 0.0.0.0 mask 0.0.0.0 192.168.0.23 metric 1 The "-p" makes the route persistent even when booted.
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November 23rd, 2010 9:28am

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