What is IP alias Linux?

IP aliasing is associating more than one IP address to a network interface. With this, one node on a network can have multiple connections to a network, each serving a different purpose. In the Linux kernel, it was first implemented by Juan José Ciarlante in 1995.

What is alias interface in Linux?

IP-aliases are an obsolete way to manage multiple IP-addresses/masks per interface. Newer tools such as iproute2 support multiple address/prefixes per interface, but aliases are still supported for backwards compatibility. An alias is formed by adding a colon and a string when running ifconfig.

How do I add a network alias?

Procedure

  1. Click Start > Settings > Control Panel > Network Connection.
  2. Open the network interface that you want to associate the IP aliases with.
  3. Scroll down to Internet Protocol (TCP/IP), and click Properties.
  4. You must be using static IP addresses to create IP aliases on this host.
  5. Create the IP aliases:

What is Bcast in ifconfig?

Bcast is broadcast address for the interface. Mask is network mask for the interface. inet6 addr is IPv6 address assigned to the interface. Scope is scope of IPv6 address. It can be link-local or global.

What is WAN IP Alias?

When we have multiple public IPs from the ISP, we can set up WAN IP Alias and multi-NAT to give access to different servers on different public IP and ports. In the following scenario, the router has 4 WAN IP addresses, and there are 3 web servers on the LAN.

How do I find my server alias name?

You can find out all the CNAMEs for a host in a particular zone by transferring the whole zone and picking out the CNAME records in which that host is the canonical name. You can have nslookup filter on CNAME records: C:\> nslookup Default Server: wormhole.movie.edu Address: …

What does Inet mean in ifconfig?

inet = Internet protocol family.

What is INET and netmask?

The inet type holds an IPv4 or IPv6 host address, and optionally its subnet, all in one field. The subnet is represented by the number of network address bits present in the host address (the “netmask”). If the netmask is 32 and the address is IPv4, then the value does not indicate a subnet, only a single host.

Can I have 2 public IP addresses?

Multi-NAT can be used where you have been allocated multiple public IP addresses by your ISP. Instead of a many-to-one relationship, you can have a one-to-one relationship between a public IP address and an internal/private IP address.

How do I get multiple IP addresses?

Click on “Advanced” near the bottom of the “Internet Protocol (TCP/IP) Properties” window. Click on “Add” under the IP addresses section at the top of the window. Enter an IP address and subnet mask that is on the secondary network you wish to communicate with. Click “add” on the “TCP/IP Address” window.