Dual Ethernet in CentOS Post: 302538997

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arpsend

arpsend(8)							    Containers								arpsend(8)

NAME

       arpsend - send ARP requests

SYNOPSIS

       arpsend -D -e target_ip [ -e target_ip ...]  [-c count] [-w timeout] interface

       arpsend -U -i source_ip [-c count] [-w timeout] interface

DESCRIPTION

       Utility arpsend sends ARP packets on device interface to detect or update neighbours' ARP caches with a given IP.

COMMANDS

       Run utility with one of the following commands:

       -D     Send broadcast ARP request to detect neighbours with target_ip. You have to specify target_ip (-e option).

       -U     Send broadcast ARP request to update neighbours' ARP caches with source_ip. You have to specify source_ip (-i option).

OPTIONS

       -c count
	      Number of packets to send. Default is infinity.

       -w interval
	      Interval between packets, in seconds. Default is 1 second.

       -i source_ip_address
	      Set source IP address field in ARP packet.

       -e target_ip_address
	      Set  target  IP  address	field in ARP packet. Note that you can specify -e option multiple times to detect many IP addresses in one
	      utility call.

EXIT STATUS

       arpsend returns 0 upon successful execution. If something goes wrong, it returns an appropriate error code.

       1    EXC_USAGE
	      Usage error

       2    EXC_SYSTEM
	      System error

       3    EXC_RECV
	      ARP reply was received

EXAMPLES

       To send request on interface eth0 to detect any neighbour computers with IP 192.168.10.200:

	  arpsend -D -e 192.168.10.200 eth0

       To send request on interface eth0 to update neighbours' ARP caches with IP 192.168.10.200:

	  arpsend -U -i 192.168.10.200 eth0

NOTES

       Interface you use have to be arpable and not be loopback (i.e.  /sbin/ip link show interface should show neither NOARP nor  LOOPBACK  flags
       in interface parameters).

SEE ALSO

       vzctl(8).

LICENSE

       Copyright (C) 2000-2011, Parallels, Inc. Licensed under GNU GPL.

OpenVZ								    28 Jun 2011 							arpsend(8)