Detailed explanation of the route add command

1. Functions
   This command is used to display and modify entries in the local IP address routing table. Use a route without parameters to display help.
   2. Syntax explanation
   Route [-F] [-p] [Command [destination] [mask netmask] [gateway] [metric] [If inte *** ce]

This is similar to thinking about how Huawei devices add routing commands. We can think that Cisco and Huawei network devices are actually Linux.

Examples

Example 1: To display the complete content of the IP route table, run the following command:
Route print

Example 2: to display a route entry starting with 10 in the IP route table, run the following command:
Route print 10 .*

Example 3: to add a default route entry whose default gateway address is 192.168.12.1, run the following command:
Route add 0.0.0.0 mask 0.0.0.0 192.168.12.1

Example 4: to add a route entry whose destination is 10.41.0.0, whose subnet mask is 255.255.0.0, and whose next hop address is 10.27.0.1, run the following command:
Route add 10.41.0.0 mask 255.255.0.0 10.27.0.1

Example 5: to add a permanent route whose destination is 10.41.0.0, The subnet mask is 255.255.0.0, And the next hop address is 10.27.0.1, run the following command:
Route-P add 10.41.0.0 mask route 255.0.0 10.27.0.1

Example 6: to add a route entry with the target 10.41.0.0, subnet mask 255.0.0, Next Hop address 10.27.0.1, and number of hops 7, run the following command:

Route add 10.41.0.0 mask 255.255.0.0 10.27.0.1 metric 7

Example 7: to add a route entry whose destination is 10.41.0.0, whose subnet mask is 255.255.0.0, whose next hop address is 10.27.0.1, and whose interface index is 0x3, run the following command:
Route add 10.41.0.0 mask route 0.0 10.27.0.1 if 0x3

Example 8: to delete a route whose destination is 10.41.0.0 and the subnet mask is 255.255.0.0, run the following command:
Route Delete 10.41.0.0 mask 255.255.0.0

Example 9: to delete all routes starting with 10 in the IP route table, run the following command:
Route Delete 10 .*

Example 10: to change the next hop address of the route whose destination is 10.41.0.0 and whose subnet mask is 255.255.0.0 from 10.27.0.1 to 10.27.0.25, run the following command:
Route change 10.41.0.0 mask 255.255.0.0 10.27.0.25

Example 11: Add a static route so that all the CIDR blocks destined for 172.0.0.0 are forwarded to the route whose network is 172.25.25.1.
Route add 172.0.0.0 mask 255.0.0.0 172.25.25.1 metric 2-P

Detailed explanation of the route add command