Package: lft
Severity: wishlist
By default lft queries whois.ra.net in order to look up ASNs. This
relies on RADB, so it's not necessarily 100% accurate. However RIPE
has created a new service called RISwhois that does the same thing as
whois.ra.net, only that it queries live BGP tables, so the data used is
of much better quality. This server is available at riswhois.ripe.net.
It's easy to see the advantage of RISwhois. Compare default lft
output:
TTL LFT trace to gluck.debian.org (192.25.206.10):80/tcp
1 [ASN?] f95.e.linpro.no (192.168.43.1) 0.3ms
2 [AS3292] knoll.linpro.no (80.232.38.217) 2.6ms
3 [AS3292] tdc-A100M-0225-hsrp.linpro.net (80.232.38.220) 5.7ms
4 [AS3292] 212.37.252.1 4.6ms
5 [AS3292] ge0-0.1000M.noa1nxg2.ip.tele.dk (213.236.195.141) 99.9ms
6 [AS3292] pos1-3.622M.osl-nyd-cr1.ip.teledanmark.no (213.236.195.89)
10.2ms
7 [AS3292] pos2-0.622M.oslo1nxg1.ip.tele.dk (83.88.13.101) 10.2ms
8 [AS3292] pos3-0.2488M.albnxg1.ip.tele.dk (83.88.13.89) 13.2ms
9 [AS3292] so-0-1-0.2488M.albnxu1.ip.tele.dk (195.249.13.82) 22.1ms
10 [ASN?] tbr1-p011402.n54ny.ip.att.net (12.123.3.98) 91.8ms
11 [ASN?] tbr1-cl1.cgcil.ip.att.net (12.122.10.2) 111.8ms
12 [ASN?] tbr1-cl1.sffca.ip.att.net (12.122.10.6) 154.0ms
13 [ASN?] gbr6-p100.sffca.ip.att.net (12.122.11.78) 150.5ms
14 [ASN?] gar2-p370.sffca.ip.att.net (12.123.13.153) 151.5ms
15 [ASN?] 12.124.35.6 246.2ms
** [neglected] no reply packets received from TTLs 16 through 20
21 [AS9827] [target] gluck.debian.org (192.25.206.10):80 186.5ms
to the same, except it's done with a lft patched to use RISwhois for
ASN lookups:
TTL LFT trace to gluck.debian.org (192.25.206.10):80/tcp
1 [ASN?] f95.e.linpro.no (192.168.43.1) 0.4ms
2 [AS3292] knoll.linpro.no (80.232.38.217) 7.8ms
3 [AS3292] tdc-A100M-0225-hsrp.linpro.net (80.232.38.220) 1.4ms
4 [AS3292] 212.37.252.1 1.9ms
5 [AS3292] ge0-0.1000M.noa1nxg2.ip.tele.dk (213.236.195.141) 2.3ms
6 [AS3292] pos1-3.622M.osl-nyd-cr1.ip.teledanmark.no (213.236.195.89)
3.0ms
7 [AS3292] pos2-0.622M.oslo1nxg1.ip.tele.dk (83.88.13.101) 10.2ms
8 [AS3292] pos3-0.2488M.albnxg1.ip.tele.dk (83.88.13.89) 11.6ms
9 [AS3292] so-0-1-0.2488M.albnxu1.ip.tele.dk (195.249.13.82) 13.0ms
10 [AS7018] tbr1-p011402.n54ny.ip.att.net (12.123.3.98) 91.6ms
11 [AS7018] tbr1-cl1.cgcil.ip.att.net (12.122.10.2) 111.5ms
12 [AS7018] tbr1-cl1.sffca.ip.att.net (12.122.10.6) 153.1ms
13 [AS7018] gbr6-p100.sffca.ip.att.net (12.122.11.78) 151.5ms
14 [AS7018] gar2-p370.sffca.ip.att.net (12.123.13.153) 153.0ms
15 [AS7018] 12.124.35.6 181.3ms
** [neglected] no reply packets received from TTLs 16 through 20
21 [AS71] [target] gluck.debian.org (192.25.206.10):80 185.5ms
--
Tore Anderson
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