root@emfog:~# lft www.wikipedia.org

Tracing _____________________________________.

TTL  LFT trace to rr.knams.wikimedia.org (145.97.39.155):80/tcp
 1   192.168.1.7 0.7ms
 2   10.124.0.1 16.1ms
 3   62-31-64-41.cable.ubr06.brad.blueyonder.co.uk (62.31.64.41) 11.1ms
 4   pc-62-30-251-198-ro.blueyonder.co.uk (62.30.251.198) 21.0ms
**   [neglected] no reply packets received from TTLs 5 through 8
 9   XSR03.Asd002A.surf.net (195.69.144.34) 37.9/*/*ms
10   AZ-500.XSR01.Amsterdam1A.surf.net (145.145.80.21) 39.1/*/*ms
11   kncsw001-router.customer.surf.net (145.145.18.158) 35.1/*/*ms
12   gi0-24.csw2-knams.wikimedia.org (145.97.32.29) 30.9/*ms
13   [target] rr.knams.wikimedia.org (145.97.39.155):80 28.8ms

root@emfog:~# lft -d 25 gmail.com

Tracing _____________________________

LFT can't seem to round-trip.  Local packet filter in the way?

TTL  LFT trace to od-in-f83.google.com (64.233.161.83):25/tcp
 1   192.168.1.7 0.6ms
 2   10.124.0.1 8.6ms
 3   62-31-64-40.cable.ubr06.brad.blueyonder.co.uk (62.31.64.40) 9.7ms
 4   pc-62-30-251-2-ro.blueyonder.co.uk (62.30.251.2) 23.9ms
**   [25/tcp failed]  Try alternate options or use -V to see packets.