A gateway is a node or a router that acts as an access point to passes network data from local networks to remote networks. There are many ways to find out your gateway in Linux. Here are some of them from Terminal. You can find default gateway using ip, route and netstat commands in Linux systems.
What is Netmask? - Definition from Techopedia Netmask is a term used in computer networking to define the class and range of Internet Protocol (IP) addresses. Netmask provides the available number range of IP addresses From Class A to Class C, and specifies a mask to divide these networks into sub-networks (subnets). Netmask and subnet are often used alternatively. Linux route Add Command Examples - nixCraft Jul 25, 2018 Subnet mask calculator - aboutmyip.com
With ifconfig on OS X you can find netmask : inet 192.168.1.2 netmask 0xffffff00 broadcast 192.168.1.255 netmask 0xffffff00 means 255.255.255.0. And for finding gateway address use arp -a or as geekosaur said use netstat -nr | grep '^default'.
This free online subnet calculator can be used to calculate network configurations, using an IP or network address, a netmask, a Cisco wildcard mask or CIDR notation. The calculator can also be used to do reverse subnetting where the number of hosts is known, but the netmask is unknown. The Netmask, together with the IP address, defines the network the computer belongs to, that is which other IP addresses the computer can touch directly in the same LAN. In order to understand the Netmask we will always remember that the 4 bytes defining both the IP address and the Netmask could be represented in binary format. Netmask; Gateway; Interface; Metric; could be used to reach a specified static route (web proxy) in the Intranet, giving that: Subnet Mask = 255.255.255.255; Gateway = BLANK; for a computer in a flat LAN. I tried Netmask 255.255.255.255 and Gateway 0.0.0.0 (on link) but when trying to ping the web proxy destination IP, it says Network Netmask netmask Specify the netmask of the network to which the pool addresses belong. Prefix-length prefix-length Number that indicates how many bits of the netmask are ones. Type-rotary (optional) Indicates that the ranges of addresses in the address pool identify real, inside hosts where TCP load distribution will occur.
You can specify the subnet mask (netmask) using the number of subnet bits or using the subnet mask in dotted decimal format. To set the management Ethernet (me1) interface IP address, perform this task in privileged mode:
Subnet Mask Cheat Sheet | DNS Made Easy Subnet Mask Cheat Sheet If you are a network admin like us, this is a little sheet that you will continually need access to. We hope you find it as helpful as we do. How to Manually Set Your IP in Linux (including ip/netplan Feb 19, 2019 linux - How to set the Default gateway - Unix & Linux