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Full Discussion: What arp -s is good for
The Lounge War Stories What arp -s is good for Post 302720689 by Corona688 on Wednesday 24th of October 2012 01:47:36 PM
Old 10-24-2012
It is on the same subnet.

Theoretically yes, broadcast ping should work, but many common operating systems and hardware bridges block or ignore broadcast ping -- or any ping -- as a matter of course now.

I can see how it could get the pinger's MAC into other people's ARP tables, but can't see see how broadcast ping gets other MAC's into my ARP table when they don't reply.
 

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OCF_PACEMAKER_PING(7)					      Pacemaker Configuration					     OCF_PACEMAKER_PING(7)

NAME
ocf_pacemaker_ping - node connectivity SYNOPSIS
[OCF_RESKEY_pidfile=string] [OCF_RESKEY_dampen=integer] [OCF_RESKEY_name=string] [OCF_RESKEY_multiplier=integer] [OCF_RESKEY_host_list=string] [OCF_RESKEY_attempts=integer] [OCF_RESKEY_timeout=integer] [OCF_RESKEY_options=string] [OCF_RESKEY_debug=string] ping [start | stop | reload | monitor | meta-data | validate-all] DESCRIPTION
Every time the monitor action is run, this resource agent records (in the CIB) the current number of ping nodes the host can connect to. It is essentially the same as pingd except that it uses the system ping tool to obtain the results. SUPPORTED PARAMETERS
OCF_RESKEY_pidfile = string [/var/run//ping-default] PID file OCF_RESKEY_dampen = integer [5s] Dampening interval The time to wait (dampening) further changes occur OCF_RESKEY_name = string [pingd] Attribute name The name of the attributes to set. This is the name to be used in the constraints. OCF_RESKEY_multiplier = integer [] Value multiplier The number by which to multiply the number of connected ping nodes by OCF_RESKEY_host_list = string [] Host list The list of ping nodes to count. Defaults to all configured ping nodes. Rarely needs to be specified. OCF_RESKEY_attempts = integer [2] no. of ping attempts Number of ping attempts, per host, before declaring it dead OCF_RESKEY_timeout = integer [2] ping timeout in seconds How long, in seconds, to wait before declaring a ping lost OCF_RESKEY_options = string [] Extra Options A catch all for any other options that need to be passed to ping. OCF_RESKEY_debug = string [false] Verbose logging Enables to use default attrd_updater verbose logging on every call. AUTHOR
Andrew Beekhof <andrew@beekhof.net> Author. Pacemaker Configuration 07/05/2010 OCF_PACEMAKER_PING(7)
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