How to display route table or default gateway

Route table are part of the area to troubleshoot when a connection have problem. Route table can the the most frequent problem to look at after assigning an IP address. Other times, it is mainly for adding additional routes when wireless & wired connection are both in use. This post will attempt to list out a few ways to display route table and also how to assign default route aka default gateway in Linux & FreeBSD.



Assigning default route (or default gateway) in Linux :

route add default gw 192.168.0.1 netmask 255.255.255.0

Assigning default route (or default gateway) in FreeBSD :

route add default 192.168.0.1

List the route table, in Linux :

route -n

netstat -rn

ip route list

List the route table, in FreeBSD :

netstat -rn

Remove or delete route in table, in Linux :

route del -net 192.168.0.0 netmask 255.255.255.0 gw 192.168.0.1 eth0

Remove or delete route in table, in FreeBSD :

route delete default

These are the posts on how to change the IP and make it permanent :
- In Linux.
- In Freebsd.

Ciao !!!