What is Ifcfg?

What is Ifcfg?

Ethernet Interfaces. One of the most common interface files is ifcfg-eth0, which controls the first Ethernet network interface card or NIC in the system.

What does Onboot Yes mean?

ONBOOT=answer: Where answer is one of the following: yes: This interface is activated at boot time. : This interface is not activated at boot time.

How do I set a static IPv6 address in Linux?

The following parameter is needed when configuring IPv6:

1. IPV6INIT=yes.
2. IPV6ADDR=[/] For example: IPV6ADDR=fe80::2/64.
3. IPV6_DEFAULTGW= For example: IPV6_DEFAULTGW=fe80::1/64.
4. IPV6_DEFAULTGW=fe80::1/64%eth0.
5. DNS{1,2}= For example: DNS1=fe80::1/64.

How do I choose an IPv6 address?

Configuring IPv6 WAN Settings

1. Choose IPv6 > IPv6 WAN (Internet).
2. In the WAN (Internet) Address (IPv6) field, choose DHCPv6.
3. Choose if the DHCPv6 client on the gateway is stateless or stateful. If a stateful client is selected, the gateway connects to the ISP’s DHCPv6 server for a leased address.
4. Click Save.

What are the different types of IPv6 address types & formats?

The three types of IPv6 addresses are: unicast, anycast, and multicast.

What is IPv6 gateway address?

An IPv6 gateway defines the edge of a network and the protocols and configurations in use, translating and routing information. An IPv6 proxy has similarities to an IPv6 gateway. Both can be implemented in either software or hardware, and both can support IPv4 to IPv6 address translation.

How do I find global IPv6 address in Linux?

Generic unix instructions for determining your IPv6 address and default route:

1. Run ifconfig -a and look for inet6 to see your possible IPv6 addresses.
2. Run netstat -nr and look for inet6 or Internet6 or similar to find the IPv6 portion; then look for default or :: or ::/0 .

Why do I have 3 different IPv6 addresses?

Of the two public addresses, the first one is SLAAC (always the same, and resembles the one in fe80), the other one is the “privacy” one (changes every X hours). If you let your device on long enough, one of the addresses will “expire” and you will get a new privacy address.

What are the different types of IPv6 address formats?

IPv6 – Address Types & Formats. 1 Hexadecimal Number System. Before introducing IPv6 Address format, we shall look into Hexadecimal Number System. Hexadecimal is a positional number 2 Address Structure. 3 Interface ID. 4 Global Unicast Address. 5 Link-Local Address.

What is an IPv6 format prefix (FP)?

The leading bits in the address define the specific IPv6 address type. The variable-length field containing these leading bits is called a Format Prefix (FP). An IPv6 unicast address is divided into two parts.

What is global routing prefix in IPv6?

Global Unicast addresses in IPv6 are globally identifiable and uniquely addressable. Global Routing Prefix: The most significant 48-bits are designated as Global Routing Prefix which is assigned to specific autonomous system. The three most significant bits of Global Routing Prefix is always set to 001.

What is a unique local IPv6 address?

Unique-Local Address. This type of IPv6 address is globally unique, but it should be used in local communication. The second half of this address contain Interface ID and the first half is divided among Prefix, Local Bit, Global ID and Subnet ID.