Difference between revisions of "CentOS 7.x ip command"
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To increase priority of a gateway, add it again using: | To increase priority of a gateway, add it again using: | ||
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ip route add default via 172.16.1.1 dev wlp3s0 proto static metric 50 | ip route add default via 172.16.1.1 dev wlp3s0 proto static metric 50 | ||
</pre> | </pre> | ||
Revision as of 12:32, 14 October 2017
<yambe:breadcrumb>CentOS_7.x_network_management|CentOS 7.x network management</yambe:breadcrumb>
CentOS 7.x ip command
Add static IP to IPv4 interface using ip command
In CentOS 7.x multiple IPv4 addresses can be associated with same interface without needing aliases (eth0:0). The older ifconfig command will show only one of these multiple addresses.
Hence use following command to check interface ip addresses:
ip addr show
Add IP to interface using:
ip address add 10.90.144.251/21 dev enp0s25
Similarly existing IP can be removed using
ip add del 10.0.0.0/21 dev enp0s25
Increase priority of preferred default gateway using ip command
If there are multiple connections, eg one wireless and one wired, then we can choose preferred network (default-gateway) using ip command. For this, to check existing priorities use:
ip route show
To increase priority of a gateway, add it again using:
ip route add default via 172.16.1.1 dev wlp3s0 proto static metric 50
Note that having two default routes for 172.16.1.1 with two different metrics is not a problem.
<yambe:breadcrumb>CentOS_7.x_network_management|CentOS 7.x network management</yambe:breadcrumb>
