Routing Tables

FreeBSD

freebsd:~ $ netstat -rW
Routing tables

Internet:
Destination        Gateway            Flags   Nhop#    Mtu      Netif Expire
default            11.155.93.1        UGS         6   1500        em0
11.155.93.0/24     link#1             U           3   1500        em0
11.155.93.77       link#2             UHS         5  16384        lo0
localhost          link#2             UH          1  16384        lo0

Internet6:
Destination        Gateway            Flags   Nhop#    Mtu    Netif Expire
::/96              link#2             URS         6  16384      lo0
default            fe80::1%em0        UGS         7   1500      em0
localhost          link#2             UHS         1  16384      lo0
::ffff:0.0.0.0/96  link#2             URS         6  16384      lo0
fd72:3264:3252:f493::/64 link#1       U           5   1500      em0
fd72:3264:3252:f493:0:1860:2427:2e87 link#2 UHS      4  16384      lo0
fe80::%lo0/10      link#2             URS         6  16384      lo0
fe80::%em0/64      link#1             U           5   1500      em0
fe80::1a60:24ff:fe27:2e87%lo0 link#2  UHS         4  16384      lo0
fe80::%lo0/64      link#2             U           3  16384      lo0
fe80::1%lo0        link#2             UHS         2  16384      lo0
ff02::/16          link#2             URS         6  16384      lo0

freebsd:~ $ route -n show 8.8.8.8
route to: 8.8.8.8
destination: 0.0.0.0
mask: 0.0.0.0
gateway: 11.155.93.1
fib: 0
interface: em0
flags:
recvpipe sendpipe ssthresh rtt,msec mtu weight expire
0 0 0 0 1500 1 0

Linux

> netstat -rnW
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         11.155.4.1      0.0.0.0         UG        0 0          0 eth0
11.155.4.0      0.0.0.0         255.255.255.0   U         0 0          0 eth0
172.17.0.0      0.0.0.0         255.255.0.0     U         0 0          0 docker0
> netstat -rn
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         11.155.4.1      0.0.0.0         UG        0 0          0 eth0
11.155.4.0      0.0.0.0         255.255.255.0   U         0 0          0 eth0
172.17.0.0      0.0.0.0         255.255.0.0     U         0 0          0 docker0

> ip route
default via 11.155.4.1 dev eth0 proto dhcp src 10.255.4.253 metric 100
11.155.4.0/24 dev eth0 proto kernel scope link src 10.255.4.253 metric 100
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown

> route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         11.155.4.1      0.0.0.0         UG    100    0        0 eth0
11.155.4.0      0.0.0.0         255.255.255.0   U     100    0        0 eth0
172.17.0.0      0.0.0.0         255.255.0.0     U     0      0        0 docker0
> route -ne
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
0.0.0.0         11.155.4.1      0.0.0.0         UG        0 0          0 eth0
11.155.4.0      0.0.0.0         255.255.255.0   U         0 0          0 eth0
172.17.0.0      0.0.0.0         255.255.0.0     U         0 0          0 docker0