Can Can't Error Total
Receive normal traceroute packets 248 32 3 283
Receive LSRR traceroute packets 38 242 3 283
Forward LSRR traceroute packets 31 249 3 283
Hosts using load balancing magic (such as round robin DNS)
might be counted as "Can't".
Detail is here.
http://grad-pc29.cs.washington.edu/~ishi/lsrr/trt.html
-- Kenichi Ishikawa