Josh,Beyond pinging the end host, what troubleshooting steps have you taken so far?Some examples:can you see any interface errors?have you performed a traceroute to the destination?can you ping the next hop successfully? (assuming the address you are...

What happens if you immediately re-run the ping command? Are there still dropped packets at the start?

Sounds like a use-case for the FWSM if you're running a 6500 core switch.. http://www.cisco.com/en/US/products/hw/modules/ps2706/ps4452/index.html

I'm running VDSL2 on an 887VA with BT Infinity, the config is here on my blog :http://www.null0.co.uk/2012/05/fttc-cisco-vdsl-router/Let me know if that helps, or if you have any questions reply here or post a comment.