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148 lines
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148 lines
7.0 KiB
Markdown
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[#]: collector: (lujun9972)
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[#]: translator: ( )
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (Four Methods To Check The Default Gateway Or Router IP Address In Linux?)
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[#]: via: (https://www.2daygeek.com/check-find-default-gateway-or-router-ip-address-in-linux/)
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[#]: author: (Magesh Maruthamuthu https://www.2daygeek.com/author/magesh/)
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Four Methods To Check The Default Gateway Or Router IP Address In Linux?
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======
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Your default gateway is the IP address of your router that you should aware of that.
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Typically this is automatically detected by your operating system during installation, if not then you may need to change it.
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If your system not able to ping self then probable it could be a gateway issue and you have to fix it.
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This might happen if you have multiple network adapters or routers on the network.
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A gateway is a router that acts as an access point to passes network data from one networks to another networks.
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The below articles will help you to gather some other information which is similar to this topic.
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* **[9 Methods To Check Your Public IP Address In Linux Command Line][1]**
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* **[How To Enable (UP) And Disable (DOWN) A Network Interface Port (NIC) In Linux?][2]**
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This can be done using below Four commands.
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* **`route Command:`** route command is used to show and manipulate the IP routing table.
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* **`ip Command:`** IP command is similar to ifconfig, which is very familiar for assigning Static IP Address, Route & Default Gateway, etc.,.
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* **`netstat Command:`** netstat (“network statistics”) is a command-line tool that displays network connections related information (both incoming and outgoing) such as routing tables, masquerade connections, multicast memberships and a number of network interface
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* **`routel Command:`** routel command is used to list routes with pretty output format.
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### 1) How To Check The Default Gateway Or Router IP Address In Linux Using route Command?
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route command is used to show and manipulate the IP routing table.
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Its primary use is to set up static routes to specific hosts or networks via an interface once the interface was configured.
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When the add or del options are used, route modifies the routing tables. Without these options, route displays the current contents of the routing tables.
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```
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# route
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or
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# route -n
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Kernel IP routing table
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Destination Gateway Genmask Flags Metric Ref Use Iface
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default www.routerlogin 0.0.0.0 UG 600 0 0 wlp8s0
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192.168.1.0 0.0.0.0 255.255.255.0 U 600 0 0 wlp8s0
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```
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### 2) How To Check The Default Gateway Or Router IP Address In Linux Using ip Command?
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**[IP command][3]** is similar to ifconfig, which is very familiar for assigning Static IP Address, Route & Default Gateway, etc.,.
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ifconfig command was deprecated due to no maintenance since so many years, even though it is still available on most Linux distributions.
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ifconfig command has been replaced by IP command which is very powerful and performing several network administration tasks with one command.
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IP command utility bundled with iproute2 package. By default iproute2 utility pre-installed all the major Linux distribution.
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If no, you can install it by issuing iproute2 on your terminal with help of package manager.
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```
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# ip r
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or
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# ip route
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or
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# ip route show
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default via 192.168.1.1 dev wlp8s0 proto dhcp metric 600
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192.168.1.0/24 dev wlp8s0 proto kernel scope link src 192.168.1.6 metric 600
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```
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### 3) How To Check The Default Gateway Or Router IP Address In Linux Using netstat Command?
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netstat stands for Network Statistics, is a command-line tool that displays network connections related information (both incoming and outgoing) such as routing tables, masquerade connections, multicast memberships and a number of network interface.
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It lists out all the tcp, udp socket connections and the unix socket connections.
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It is used for diagnosing network problems in the network and to determine the amount of traffic on the network as a performance measurement.
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```
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# netstat -r
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Kernel IP routing table
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Destination Gateway Genmask Flags MSS Window irtt Iface
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default www.routerlogin 0.0.0.0 UG 0 0 0 wlp8s0
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192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlp8s0
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```
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### 4) How To Check The Default Gateway Or Router IP Address In Linux Using routel Command?
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It used to list routes with pretty output format. These programs are a set of helper scripts you can use instead of raw iproute2 commands.
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The routel script will list routes in a format that some might consider easier to interpret then the ip route list equivalent.
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The routef script does not take any arguments and will simply flush the routing table down the drain. Beware! This means deleting all routes which will make your network unusable!
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```
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# routel
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target gateway source proto scope dev tbl
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default 192.168.1.1 dhcp wlp8s0
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192.168.1.0/ 24 192.168.1.6 kernel link wlp8s0
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127.0.0.0 broadcast 127.0.0.1 kernel link lo local
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127.0.0.0/ 8 local 127.0.0.1 kernel host lo local
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127.0.0.1 local 127.0.0.1 kernel host lo local
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127.255.255.255 broadcast 127.0.0.1 kernel link lo local
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192.168.1.0 broadcast 192.168.1.6 kernel link wlp8s0 local
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192.168.1.6 local 192.168.1.6 kernel host wlp8s0 local
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192.168.1.255 broadcast 192.168.1.6 kernel link wlp8s0 local
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::1 kernel lo
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fe80::/ 64 kernel wlp8s0
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::1 local kernel lo local
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fe80::ad00:2f7e:d882:5add local kernel wlp8s0 local
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ff00::/ 8 wlp8s0 local
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```
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If you would like to print only default gateway then use the following format.
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```
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# routel | grep default
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default 192.168.1.1 dhcp wlp8s0
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```
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--------------------------------------------------------------------------------
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via: https://www.2daygeek.com/check-find-default-gateway-or-router-ip-address-in-linux/
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作者：[Magesh Maruthamuthu][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://www.2daygeek.com/author/magesh/
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[b]: https://github.com/lujun9972
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[1]: https://www.2daygeek.com/check-find-server-public-ip-address-linux/
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[2]: https://www.2daygeek.com/enable-disable-up-down-nic-network-interface-port-linux-using-ifconfig-ifdown-ifup-ip-nmcli-nmtui/
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[3]: https://www.2daygeek.com/ip-command-configure-network-interface-usage-linux/
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