If you select table output be patient.
output page will be prepared in 10-15 sec. You can
also select flush stream mode to get results on the
fly. The default maximal hops value is equal to 30.
Maybe you need to touch it ... At last, the mode
Route to you sends pings to your host, hopefully
it's not unreachable.
The idea of Traceroute is to use
TTL field (time-to-live) in the IP header. See
Tracing the Path of a TCP/IP Packet about ICMP protocol and TTL field.
Each router that gets the datagram decrements TTL by one,
so the TTL becomes a hop counter. Some descriptions about
traceroute algorithm may be found on the site
How traceroute works.
Original Traceroute sends by default 3 probe datagrams and this Tracerote Servlet save this tradition. If one of the probe datagrams gets lost it will be marked by asterisk * in the output result. It's very hard to find the site so that it will take you more 20 hops to get there. The maximal value for TTL field is 255. The default maximal hop value in the Traceroute Servlet is taken 30 as in the most traceroute services. You can find one ancient example of 38 (!) hops. There are some buggy routers that forwards the datagram packet with a zero TTL. It sometimes leads to Routing Loop. The Traceroute Servlet will stop the tracing process if the current IP address is repeating 3 times.
This servlet implemented and
maintained by Rafael Stekolshchik