Ok, next question
I am getting crappy download throughput on the public interface. I have traced the problem and it is on the public interface, giving large numbers of CRC errors.
I believe this is being caused by a mismatch of the bandwidth and duplex settings on the interface; my problem is that I cannot get them to sync up correctly.
I have an external Cable modem that provides me with around a 4mb link. The CM provides a 10/100mbit Full Duplex CAT5e interface. I am plugging the CM directly into ETH0/0 on the router using a straight through patch cable.
Here are my faults/findings when running the dslguide speedtest through the router:
Eth0/0 Settings: No Bandwidth - full-duplex
Result: 778.2 Kbps download; hundreds of CRC errors
Eth0/0 Settings: Bandwidth = 10240 - full-duplex
Result: ~900kbps download reported; hundreds of CRC errors
Eth0/0 Settings: Bandwidth = 10240 - half-duplex
Result: 1,841.4 Kbps download reported; 0 CRC errors
Eth0/0 Settings: Bandwidth = 4096 - full-duplex
Result: 897.3 Kbps download reported; hundreds of CRC errors
Eth0/0 Settings: Bandwidth = 4096 - half-duplex
Result: 1,772.4 Kbps download reported; 0 CRC errors
Now those results make it look like it has to be half-duplex but if I set to half duplex I lose 50% of my download capacity ?!?! Any ideas ??
I tried running a speedtest with a bandwidth of 8mb / Half-duplex but it came out about the same as 4mb Half-duplex !?
Eth0/0 Settings: Bandwidth = 8192 - half-duplex
Result: 1,608.7 Kbps download reported; 0 CRC errors
If I plug the modem into a SMC router I get speedtest results between 3.8 and 4mb...so it is definatley the router/modem config holding me back.