$ lft -A -N -m3 -l2 8.8.8.8:53
Tracing ........**********..******.................T
TTL LFT trace to google-public-dns-a.google.com (8.8.8.8):53/tcp
2 [AS?] [NULL] 10.193.232.117 12.9/16.6/5.5ms
3 [4760] [NETVIGATOR] wtsc3a070.netvigator.com (218.102.40.70) 13.2/13.4/13.1ms
4 [3491] [BTN-CIDR5] 63-216-176-25.static.pccwglobal.net (63.216.176.25) 13.0/3.6/5.5ms
5 [15169] [GOOGLE] 72.14.197.48 13.3/3.5/8.8ms
6 [15169] [GOOGLE] 108.170.241.101 13.9/6.4/3.6ms
7 [15169] [GOOGLE] 216.239.40.11 14.1ms
8 [15169] [GOOGLE] 216.239.49.153 47.2/47.6/47.2ms
9 [15169] [GOOGLE] 72.14.236.130 39.9/40.8/47.3ms
** [neglected] no reply packets received from TTLs 10 through 17
** [4.2-3 BSD bug?] the next gateway may errantly reply with reused TTLs
18 [15169] [LVLT-GOGL-8-8-8] [target closed] google-public-dns-a.google.com (8.8.8.8):53 40.5/38.1/37.8ms
$ lft -A -N -m3 -l2 8.8.4.4:53
Tracing ......**............T
TTL LFT trace to google-public-dns-b.google.com (8.8.4.4):53/tcp
2 [AS?] [NULL] 10.193.232.118 12.8/13.2/6.1ms
3 [4760] [NETVIGATOR] wtsc3a030.netvigator.com (218.102.40.30) 13.2/6.6/14.5ms
4 [3491] [BTN-CIDR5] 63-216-176-41.static.pccwglobal.net (63.216.176.41) 13.2/7.8/4.0ms
5 [15169] [GOOGLE] 72.14.197.48 24.8/35.8/13.4ms
6 [15169] [GOOGLE] 108.170.241.1 13.6/13.8/6.5ms
** [neglected] no reply packets received from TTL 7
8 [15169] [LVLT-GOGL-8-8-4] [target open] google-public-dns-b.google.com (8.8.4.4):53 3.6/3.6/4.6ms
8844跑少幾個node啦