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166 - How to use iP route

ip route provides management tools for manipulating any of the routing tables. Operations include displaying routes or
the routing cache, adding routes, deleting routes, modifying existing routes, and fetching a route and clearing an entire
routing table or the routing cache.

1. View the main routing table with ip route show.

# route -n (or, ip route show)

2. Using ip route add to populate a routing table.

# ip route add192.168.1.0/24 dev eth0

# ip route add 192.168.2.252/32 dev eth1 src 192.168.2.110

# ip route add default via 192.168.1.254

3. Removing routes with ip route del.

# ip route delete 192.168.2.252/32 dev eth1 src 192.168.2.180

4. Altering existing routes with ip route change.

# ip route change default via 192.168.17.1 dev eth0

5. CIDR (Classless Inter-Domain Routing).

192.168.17.0/24   --   From 192.168.17.0   To 192.168.17.255
192.168.17.252/32 --   Only 192.168.17.252

 

 

 

 

 



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