Logs say no route to host. Routing table and tcptrraceroute say otherwise. Reset packets being sent as a result.. halp

I've not seen this before and am honestly stumped. From the logs: Thu Jun 5 12:00:34 CDT 2014 err F5 tmm[9502] 01230140 RST sent from 10.180.48.237:80 to 10.180.48.3:58937, [0x174f...