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How did my IP address get assigned to my computer?
When you’re at home, an IP address is assigned to your computer by your Internet service provider (think Time Warner Cable, Cox Communications, or AT). Your Internet activity goes through them, and they route it back to you, using your IP address. But don’t get attached to it.
What is IP proxy ARP?
Proxy ARP is a technique by which a proxy server on a given network answers the Address Resolution Protocol (ARP) queries for an IP address that is not on that network. The proxy is aware of the location of the traffic’s destination and offers its own MAC address as the (ostensibly final) destination.
How can you resolve an ARP IP address to an Ethernet MAC address?
If the ARP module is not able to find an entry for this IP address in the ARP cache, then it sends an ARP request packet to the Ethernet driver, to resolve the IP address to the Ethernet address. After the IP address is resolved by the ARP module, the packet is sent to the Ethernet driver for transmission.
Why is my PC sending ARP requests on my Network?
RARP is when say, you know your MAC address, but don’t know your own IP address, its bascially a DHCP like process in order to establish your IP address on the network. If your lease drops, your machine may send a rarp to find the router and get a new IP address.
How does the ARP table work in case of an external IP?
However, for external IPs, my ARP table is actually not one to one. Does ARP work this way in this case: 1-Host broadcasts an external IP address to the subnet asking who this is, 2- gateway router responds with its MAC, 3- For another external IP the process repeats again and again…
When to use proxy ARP in a router?
Proxy-ARP is often used by routers performing NAT, when listening for forwarded IP blocks in a different subnet to the WAN interface itself. For example, your router might have a public IP of 1.1.1.1/30 and your ISP has given you 1.3.1.1/28 (1.3.1.1-1.3.1.14 OR 14 usable hosts) as a block of IPs to use for services of your choosing.
What is the IP address of my PC?
The IP address 192.168.1.61 that my PC sends an ARP broadcast for, has never been used by a device on my network. IP addresses on my network start from 192.168.1.64 up. More sharing options… From the wireshark output, your router is doing arp for a whole range of IP addresses, sweeping the 192.168.1.x-xxx range.