Squid configuration directive mcast_groups

Available in: v7   v6   v5   v4   3.5   3.4   3.3   3.2   2.7   3.1   3.0   2.6  

For older versions than v4 see the linked pages above

Configuration Details:

Option Name:mcast_groups
Replaces:
Requires:
Default Value:none
Suggested Config: 


	This tag specifies a list of multicast groups which your server
	should join to receive multicasted ICP queries.

	NOTE!  Be very careful what you put here!  Be sure you
	understand the difference between an ICP _query_ and an ICP
	_reply_.  This option is to be set only if you want to RECEIVE
	multicast queries.  Do NOT set this option to SEND multicast
	ICP (use cache_peer for that).  ICP replies are always sent via
	unicast, so this option does not affect whether or not you will
	receive replies from multicast group members.

	You must be very careful to NOT use a multicast address which
	is already in use by another group of caches.

	If you are unsure about multicast, please read the Multicast
	chapter in the Squid FAQ (http://www.squid-cache.org/FAQ/).

	Usage: mcast_groups 239.128.16.128 224.0.1.20

	By default, Squid doesn't listen on any multicast groups.
 

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