# Limiting multicast cluster membership **URL:** \ **Category:** Elasticsearch\ **Created:** [March 25, 2013, 10:08am UTC](https://discuss.elastic.co/t/limiting-multicast-cluster-membership/11289 "2013-03-25T10:08:58Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Fabian\_Lange](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/fabian_lange/32/1847_2.png) [@Fabian\_Lange](https://discuss.elastic.co/u/Fabian_Lange)\ **Post date:** [March 25, 2013, 10:08am UTC](https://discuss.elastic.co/t/limiting-multicast-cluster-membership/11289/1 "2013-03-25T10:08:58Z")
Hi, just wanted to check the best practice for limiting membership of nodes in a cluster running multicast discovery. Is it expected to configure this by configuring the underlying network layer to restrict multicast across networks, or can I configure the Zen Discovery to accept only nodes from certain subnets. Fabian -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![q42jaap](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/q42jaap/32/2241_2.png) [@q42jaap](https://discuss.elastic.co/u/q42jaap)\ **Post date:** [March 25, 2013, 3:39pm UTC](https://discuss.elastic.co/t/limiting-multicast-cluster-membership/11289/2 "2013-03-25T15:39:03Z")
Did you consider changing the clustername in the configuration? Or is it a security feature you're looking for? Jaap Taal [Q42 BV | tel 070 44523 42 | direct 070 44523 65 | [http://q42.nl](http://q42.nl) | Waldorpstraat 17F, Den Haag | Vijzelstraat 72 unit 4.23, Amsterdam | KvK 30164662 ] On Mon, Mar 25, 2013 at 11:08 AM, Fabian Lange [fabian.lange@codecentric.de](mailto:fabian.lange@codecentric.de) wrote: > Hi, > just wanted to check the best practice for limiting membership of nodes in a > cluster running multicast discovery. > > Is it expected to configure this by configuring the underlying network layer > to restrict multicast across networks, or can I configure the Zen Discovery > to accept only nodes from certain subnets. > > Fabian > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 2:44am UTC](https://discuss.elastic.co/t/limiting-multicast-cluster-membership/11289/3 "2017-07-06T02:44:44Z")
Closed on July 6, 2017, 2:44am UTC