Can you have 2 IP addresses?

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Can you have 2 IP addresses?

Yes, one device can have multiple IP addresses. You likely already have at least one device doing that aready – your home router. The usual reason for a device to have more than one IP address is that it is present on more than one seperate subnet, or network.

Which two types of addresses are found in an ARP table?

The ARP reply uses a unicast address for the source and a unicast address for the destination. This term refers to a node sending out an ARP request for its own IP address in order to determine if another node is using the same address. The ARP table contains a mapping between host MAC and IP addresses.

How many IP addresses can you have?

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4,294,967,296
For IPv4, this pool is 32-bits (232) in size and contains 4,294,967,296 IPv4 addresses. The IPv6 address space is 128-bits (2128) in size, containing 340,282,366,920,938,463,463,374,607,431,768,211,456 IPv6 addresses.

How many IP addresses can I have?

Both IPv4 and IPv6 addresses come from finite pools of numbers. For IPv4, this pool is 32-bits (232) in size and contains 4,294,967,296 IPv4 addresses. The IPv6 address space is 128-bits (2128) in size, containing 340,282,366,920,938,463,463,374,607,431,768,211,456 IPv6 addresses.

How does ARP resolve an IP address?

ARP broadcasts a request packet to all the machines on the LAN and asks if any of the machines are using that particular IP address. When a machine recognizes the IP address as its own, it sends a reply so ARP can update the cache for future reference and proceed with the communication.

Why does one port have two MAC addresses?

A switch can have multiple MAC addresses associated with a single port. This is common when the switch is connected to another switch. The switch will have a separate MAC address table entry for each frame received with a different source MAC address.

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Why do I have two different ARP entries for VIP?

The fact that you have 2 ARP entries, 2 different IP addresses resolving to the same virtual MAC address, it means one of the following: If one of the IP’s does not reply to ping, in general it means that the VIP is the same as the IP address configured at the interface level.

What is the difference between ARP table and MAC address table?

The ARP table is built from the replies to the ARP requests, recorded before a packet is sent on the network. The MAC address table, sometimes called a MAC Forwarding Table or Forwarding Database (FDB), holds information on the physical switch port a specific device is connected to.

What is an ARP table and how does it work?

The most important data in an ARP table is the MAC and IP address pairs of the devices on the network. It also contains other valuable information, such as the specific interface a MAC address is connected to, and how long to keep the ARP entry within the table. Let’s break down the table components above:

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What is the difference between ARP and inverse ARP?

RARP is outdated and is replaced by BOOTP and DHCP protocols. Instead of using layer 3 that uses a IP address to find a MAC address, Inverse ARP uses MAC address to find IP addresses. As this name suggests, Inverse ARP is just inverse of ARP.