Stack Overflow
Stack Overflow

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.

603 questions
-2
votes
0 answers

Can NDP be used with IPv4?

Can NDP (Neighbor Discovery Protocol) neighbor solicitation/advertisement be used with IPv4 in their "mapped" IPv6 form? I wrote a simple ARP/NDP example and tried using NDP for both IPv4 and IPv6, but no devices I tried seemed to respond. The…
Trevor Gross
  • 454
  • 3
  • 11
-2
votes
1 answer

Get IP, MAC and hostname for all connected computers in my network

I remember doing it a few months ago, but I just forgot the command I used. It was a one liner that produced a table output will all computers in the list: IP MAC HOST For example: xx.xx.46.118 ab:cd:12:34:aa:aa Intel Corporate (DUP:…
Nando
  • 170
  • 3
  • 9
-2
votes
1 answer

Java string manipulation for ARP tables

I am working on a tool a little like xARP. It simply detects changes in ARP tables to find out whether a man in the middle attack is taking place. Anyway, I ran into a problem. I managed to read the ARP table from my machine and load them into a…
Dar56
  • 125
  • 1
  • 1
  • 5
-2
votes
1 answer

Get MAC address from VLAN1 from server on VLAN2

got a networking question for everyone. Got VOIP phones on VLAN1. Got a server on VLAN2. So using a layer 2 switch is it possible to get the MAC address using ARP from a phone on VLAN1 from the server on VLAN2 ? My research says it needs a…
Alex
  • 25
  • 4
-2
votes
1 answer

I want to perform a ARP poisoning attack

I want to perform a ARP poisoning attack but have to manipulate the bits of the raw packets, is there any way that can be done?Since i have tried a lot of them and none of them seems to work
PRABHAV GUPTA
  • 1
  • 1
-2
votes
1 answer

Linux arp -a Output Table Column Definitions

Could someone please define the header for each of these columns? macOS High Sierra v 10.13.3 Input: $ arp -a ? (192.168.0.1) at b0:7f:b9:5a:d:a2 on en4 ifscope [ethernet] ? (192.168.0.10) at 0:18:4d:ff:ff:7 on en4 ifscope [ethernet] ?…
WolfeLogic
  • 49
  • 5
-2
votes
2 answers

A computer with two network adapter is scanned by Arp

I've got a computer with two network adapter, both of them is assigned a different IP.(EX:192.168.81.90, 192.168.81.93) And I use ARP scan from 192.168.81.1 to 192.168.81.255, I will get two different MAC addresses and two different IPs. Is it…
Drunk Engineer
  • 11
  • 6
-2
votes
1 answer

ARP in Linux creates FAILED entries

Under Linux-4.11 a locally generated ARP request would result in an ARP entry created with state FAILED (as seen by ip neigh show), when there's nobody to respond. Is this normal behaviour? Also, flushing sudo ip neigh flush dev eth0 doesn't flush…
Mark
  • 6,052
  • 8
  • 61
  • 129
-2
votes
1 answer

ARP table refresh rate, how often and why?

How often does the ARP table refreshes Why is it refreshing at that rate? started learning networks and have a difficult time understanding these things about the arp table.
Shraga
  • 67
  • 1
  • 8
-2
votes
1 answer

Using arp table to run an nmap scan

I'm trying to do a network scan however scanning the entire network for any possible host consumes to many resources, then I found that you could use arp to find all ip address on your network. arp -n > exampleOutput.txt Now my issues is that the…
adjoth
  • 1
  • 2
-2
votes
1 answer

How can I get SNAT to work with ARP requests using iptables?

Problem Statement I have two nodes (N1 and N2) on separate networks. They both connect to separate interfaces on a common node (Nc). I need to ping from N1 to N2. Reference: N1: IP Address 172.1.1.96/24 N2: IP Address 10.1.1.33/24 Nc: lan1…
tomcat
  • 219
  • 3
  • 9
-2
votes
1 answer

Where does the Source MAC comes from before Encapsulating Frames in Layer2?

packet arrives from application->...Network->(IP encapsulation added here as per IP configuration)->goes down to Data Link Layer Here the Framing is Done and SourceMac and Dest Mac is added for LAN Switching. Does every time the SourceMac is…
JusCuri0us
  • 1
  • 4
-2
votes
1 answer

ARP behind router with NAT?

Router Access Point 192.168.0.10 | 192.168.5.1................192.168.5.7<--NAT<--192.168.10.1 In this topology, the clients in the AP get translated to the internet interface which is X.X.5.7. I want the router to…
Undisputed007
  • 639
  • 1
  • 10
  • 31
-3
votes
1 answer

ARP Spoofing in C#

I am re-writing this because my last one (which I deleted) wasn't explained properly. So, I am currently making a Network Administration tool for my school, as a self-given homework task (I am bored). It currently has the following tools: IP…
MaliciouZzHD
  • 49
  • 1
  • 12
-3
votes
1 answer

Is ARP applicable out of a subnet?

When a computer, with IP address IPs and default gateway IPg, is sending a datagram to destination with IP address IPd on a different subnet, it will perform: a)- ARP(IPg) b)- ARP( IPd) c)- ARP(IPs) d)- ARP(0)
jack
  • 77
  • 1
  • 7
1 2 3
…
40
41