What I want
How can know how many route/hub/switch are in my LAN network?
What I know
- Host LAN IP is : 172.16.50.39
- gateway is : 172.16.50.1
- WLan IP: 219.134.89.155
Operations
[dennis@localhost ~]$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: enp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 00:23:ae:96:d6:9a brd ff:ff:ff:ff:ff:ff
inet 172.16.50.39/24 brd 172.16.50.255 scope global enp2s0
valid_lft forever preferred_lft forever
inet6 fe80::223:aeff:fe96:d69a/64 scope link
valid_lft forever preferred_lft forever
[dennis@localhost ~]$ route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
^C
[dennis@localhost ~]$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 172.16.50.1 0.0.0.0 UG 1024 0 0 enp2s0
172.16.50.0 0.0.0.0 255.255.255.0 U 0 0 0 enp2s0
[dennis@localhost ~]$ curl ifconfig.me
219.134.89.155
[dennis@localhost ~]$ ping www.baidu.com
PING www.a.shifen.com (180.97.33.108) 56(84) bytes of data.
64 bytes from 180.97.33.108: icmp_seq=1 ttl=51 time=36.6 ms
64 bytes from 180.97.33.108: icmp_seq=2 ttl=51 time=42.0 ms
...
^C
--- www.a.shifen.com ping statistics ---
120 packets transmitted, 120 received, 0% packet loss, time 138219ms
rtt min/avg/max/mdev = 28.061/41.513/82.900/10.308 ms
[dennis@localhost ~]$ traceroute www.baidu.com
traceroute to www.baidu.com (180.97.33.107), 30 hops max, 60 byte packets
1 172.16.50.1 (172.16.50.1) 3.386 ms 3.431 ms 3.463 ms
2 219.134.89.153 (219.134.89.153) 6.355 ms 7.169 ms 7.155 ms
3 10.1.100.37 (10.1.100.37) 5.989 ms 6.274 ms 6.318 ms
4 121.15.130.18 (121.15.130.18) 7.180 ms 7.167 ms 7.153 ms
5 61.104.38.59.broad.fs.gd.dynamic.163data.com.cn (59.38.104.61) 6.227 ms 6.219 ms 57.104.38.59.broad.fs.gd.dynamic.163data.com.cn (59.38.104.57) 6.924 ms
6 183.56.65.30 (183.56.65.30) 31.614 ms 183.56.66.2 (183.56.66.2) 13.175 ms 183.56.65.38 (183.56.65.38) 12.152 ms
7 202.97.64.73 (202.97.64.73) 37.557 ms 37.543 ms 38.302 ms
8 202.102.69.114 (202.102.69.114) 42.036 ms 43.259 ms 43.246 ms
9 * * *
10 180.97.32.2 (180.97.32.2) 37.346 ms 180.97.32.6 (180.97.32.6) 38.140 ms 180.97.32.22 (180.97.32.22) 36.722 ms
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[dennis@localhost ~]$ traceroute 219.134.89.155
traceroute to 219.134.89.155 (219.134.89.155), 30 hops max, 60 byte packets
1 172.16.50.1 (172.16.50.1) 3.835 ms 3.856 ms 3.885 ms
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