On that security issue, you said the linksys uses wep, i guess you used the same thing in your RB (static keys optional or required)? - just checking. You may want to consider WPA2 for security later on.
Did you statically assign 192.168.1.254/24 to wlan1 at any time?
Connect to your RB via mac address, and clear the IP address list. Go to the route list and be sure it's cleared. Try dhcp client on bridge 1 one more time.
If it still doesn't work, first confirm that the linksys dhcp server has the full range of ip addresses (192.168.1.2-192.168.1.254) available. Apply a valid ip to bridge1 via terminal (
ip address add address=192.168.1.50/24 int=bridge1
). Check your route list and be sure it reflects the ip address you just assigned to bridge1. Now you're going to have to assign a static route (
ip route add gateway=192.168.1.1
and dns addresses (
ip dns add primary-dns=x.x.x.x secondary-dns=x.x.x.x
). Try pinging 192.168.1.1 again.
If it still doesn't work, then we'll have to try routing instead of bridging.