gtping/README GTP Ping By Thomas Habets <thomas@habets.se> 2008-2010 Description ----------- Like ping(8), but uses GTP ping requests to ping GGSNs and anything else that will answer them. Tested and works on Linux, FreeBSD, OpenBSD, IRIX and Solaris. Should work on many more. The Linux network code exposes more info about why a packet is lost. Could be good to know. GTP Specs at 3GPP: http://www.3gpp.org/ftp/Specs/2009-03/Rel-8/29_series/29060-870.zip http://www.3gpp.org/ftp/Specs/2009-03/Rel-8/29_series/29274-811.zip 3GPP don't seem to believe in preservation of history, so these links are broken. But googling for these file names should give you a mirror. This looks like yet another sign that it's *extremely* rare to find a telco engineer who understands packet switching or the Internet. http://wired-n-wireless.blogspot.com/2009/02/gtpc-v2.html License ------- GPL, see the COPYING file. Installing ---------- See INSTALL file. Support ------- Official help mailing list is synscan@googlegroups.com. Example use ----------- $ ./gtping -c 3 1.2.3.4 GTPing 0.14 GTPING 1.2.3.4 (1.2.3.4) 12 bytes of data. 12 bytes from 1.2.3.4: seq=0 ttl=64 ToS=be time=353.40 ms 12 bytes from 1.2.3.4: seq=1 ttl=64 ToS=be time=606.16 ms 12 bytes from 1.2.3.4: seq=2 ttl=64 ToS=be time=63.55 ms --- brick GTP ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 3000ms 0 out of order, 0 dups, 0 connection refused, 0 ICMP error rtt min/avg/max/mdev = 63.551/341.039/606.161/221.692 ms $ ./gtping -r1 4.2.2.1 GTPing 0.14 GTPING traceroute to 4.2.2.1 (4.2.2.1) 12 bytes of data. 1 From x.x.x.x ToS=cs6 ttl=64 time=1.97 ms: TTL exceeded 2 From x.x.x.x ToS=cs6 ttl=63 time=2.68 ms: TTL exceeded 3 From x.x.x.x ToS=cs6 ttl=126 time=20.25 ms: TTL exceeded 4 From 195.84.210.29 ToS=cs6 ttl=252 time=23.11 ms: TTL exceeded 5 From 4.68.111.17 ToS=cs6 ttl=248 time=45.18 ms: TTL exceeded 6 From 4.69.134.25 ToS=cs6 ttl=248 time=35.63 ms: TTL exceeded 7 From 4.69.134.30 ToS=be ttl=57 time=45.78 ms: TTL exceeded 8 From 4.69.141.150 ToS=be ttl=58 time=46.75 ms: TTL exceeded 9 From 4.69.133.89 ToS=be ttl=59 time=51.69 ms: TTL exceeded 10 From 4.69.141.170 ToS=be ttl=59 time=41.87 ms: TTL exceeded 11 From 4.69.132.133 ToS=be ttl=59 time=57.38 ms: TTL exceeded 12 From 4.69.139.98 ToS=cs6 ttl=246 time=57.91 ms: TTL exceeded 13 From 4.2.2.1 ToS=be ttl=246 time=57.89 ms: Port closed Projects using gtping --------------------- [1] gtp-guard - https://github.com/acassen/gtp-guard gtping is integrated for GTPc testing of gtp-guard, see the test/ folder. ---------------------------------------------------------------------------- Send questions/suggestions/patches/rants/routers to synscan@googlegroups.com