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Questions tagged [arp]

ARP is a protocol for resolution of network layer addresses such as IP into link layer addresses (such as MAC addresses). "arp" is also a command in Linux and Windows to manipulate the ARP cache.

Address Resolution Protocol (ARP) is a telecommunications protocol used for resolution of network layer addresses into link layer addresses, a critical function in multiple-access networks. ARP was defined by RFC826 in 1982.
It is also the name of the program for manipulating these addresses in most operating systems.

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How many hosts can one network card handle

When arp spoofing an entire subnet how many hosts can a normal network card handle?
TheFlea
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Is it possible to build an arp request packet in such a way that will cause a router to forward it over subnets?

What I'm trying to do is get all the ip addresses in my network, and I thought, assuming I know the address of all subnets could use arp requests to achieve that if there was a way to forward these requests over different subnets. For example ,…
user3371266
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get MAC address from IP address in LAN network with router installed Openwrt

I need to detect MAC address of devices connecting to my router (running Openwrt). The idea is when a client connects to my router wirelessly, I can get its IP address (my router runs a simple C webserver). I want to get the MAC address of the…
Trung Tran
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