You were exactly correct. This resolved my issue. Thanks so much!!! As you can tell I am new to using iproute2.

Thanks again!!!

I believe what you need to fix this issue is:

# ip route add 192.168.6.0/24 via 192.168.4.3 dev eth0 table Cable
# ip route add 192.168.6.0/24 via 192.168.4.3 dev eth0 table T1