The convention is to give the router the first address on the subnet. This means, in most cases, your router's IP address is the same as your IP address except it ends in 1. If your IP is I was at first a bit confused by the output from the route get default grep gateway commands on my Mac OS X In case anyone else comes here wanting the IP address as well, adding the -n option could possibly help according to the documentation, it will bypass attempts to print host and network names symbolically when reporting actions :.
If you want the local address of the router it's most likely your gateway address. Thank you for your interest in this question.
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Viewed 30k times. How can I find out what IP my router on my local area network is using? Flyk 1, 1 1 gold badge 20 20 silver badges 28 28 bronze badges. Mahdi Ijadnazar Mahdi Ijadnazar 11 1 1 gold badge 1 1 silver badge 2 2 bronze badges. What Operating system? Update: In Terminal.
What Is My Default Gateway/ Router IP Address?
This is the fastest way as pointed out by Daniel. Thanks Dan. Configuring the interface manually If you're configuring it manually then something like this will set the default gateway network, broadcast and gateway are optional : auto eth0 iface eth0 inet static address Make sure to disable all DHCP services, e. Mixing manual and automatic configuration is also possible, e.
If you turn off autonegotiation and set speed and duplex manually then the partner interface at the other end of the cable will assume that the absence of autonegotiation indicates a speed of 10Mbps and a duplex of half. For error-free operation if you set speed and duplex manually you must ensure that exactly the same speed and duplex are configured on the partner interface.
How Do I Find Out My Linux Gateway / Router IP Address?
If you set your interface's speed and duplex by hand, then some trial and error may be required. Here are the basic steps: Install the ethtool and net-tools packages, so that you have the ethtool and mii-tool programs. One or both of these might work for your interface. Make sure you have a way to login to the system in case the network interface becomes nonfunctional. An SSH connection could be disrupted, so you should have a fallback strategy.
Identify the interface in question it will often be eth0.
Adjust the remainder of these instructions accordingly. Try to determine what its current speed and duplex settings are. If not, the ethtool may not be supported by your device. If not, them mii-tool may not be supported by your device. If neither one is supported, you may have to set parameters directly on the kernel driver module. Identify which driver module you're using by reading the output of dmesg and lsmod. You can use modinfo even on modules that are not loaded, for comparison. ToDo : where does one set kernel module parameters? Next, try to change the settings of the interface while it's operating.
You'll need to be root, of course. However, before you do that, you should understand that some drivers and devices behave differently than others. When the driver module is loaded, the NIC may begin autonegotiation without any way to stop it particularly with drivers that do not accept parameters. The settings from interfaces are applied at some point after that, which may be right in the middle of the negotiation.
Find Your Gateway IP
So, some people find it necessary to delay the ethtool or mii-tool command by a few seconds. Thus: iface eth0 inet static address Or the analogous mii-tool command. Reboot the machine to make sure it comes up correctly, and be prepared to intervene manually e.
Bringing up an interface without an IP address To create a network interface without an IP address at all use the manual method and use pre-up and post-down commands to bring the interface up and down. You also have to install the vlan package.
mac osx - How to delete a route on a specific interface? - Server Fault
Just configure the bridge, and the VLAN interface will be created automatically when creating the bridge see below. Defining the DNS Nameservers Before a computer can connect to an external network resource say, for example, a web server , it must have a means of converting any alpha-numeric names e. The Internet uses these structured numeric IP addresses as network addresses.
In the simplest case, that is the file to edit to set the list of name servers. But note that various other programs for dynamic configuration will be happy to overwrite your settings: The resolvconf program The network-manager daemon DHCP clients In most situations, the file to edit is the configuration file for such a program. In the most complex situations, using resolvconf really is the way to go, though in more simple configurations it is probably overkill. The resolv. Note: Do not confuse this configuration file with the program resolvconf , which unfortunately has a nearly identical name.
There will be a line or lines that look like this: nameserver Simply edit the file and enter the IP addresses of the nameservers you need to use after each nameserver. Add more nameserver lines if you have more nameservers. Don't use this method if you have the resolvconf program installed.
The resolvconf program The resolvconf program keeps track of system information about the currently available nameservers. It should not be confused with the configuration file resolv.
The resolvconf program is optional on a Debian system. The configuration file resolv. However, when multiple programs need to dynamically modify the resolv. The resolvconf program addresses this problem. It acts as an intermediary between programs that supply nameserver information e. When resolvconf is properly installed, the resolv. The resolvconf program is generally only necessary when a system has multiple programs that need to dynamically modify the nameserver information.