[jboss-jira] [JBoss JIRA] Commented: (JGRP-344) Ignore bind address for (receive) sockets

Ignore bind address for (receive) sockets ----------------------------------------- Key: JGRP-344 URL: http://jira.jboss.com/jira/browse/JGRP-344 Project: JGroups Issue Type: Task Affects Versions: 2.4 Reporter: Bela Ban Assigned To: Bela Ban Fix For: 2.5 For multicast sockets, bind address defines the NIC which will be used to receive and send IP multicast packets. For unicast sockets (e.g. ServerSocket), this is an unnecessary restriction and bind address should be ignored. For example, if we define bind_addr=1.2.3.4, then we will be able to only receive packets on 1.2.3.4, but not 5.6.7.8 etc. However, currently bind_addr is used to define the *identity* of a member, so we still need to use it (although not set it in a socket). This will be easier once we have logical addresses. Email by Satya: Hi, I have found an issue which is to be fixed in 2.5. I want to know if my issue is realted to this issue. The description is as follows: If -Dbind.address or bind_addr are not set, JGroups picks the NIC to bind sockets to itself. However, especially for ServerSockets, this may not be desirable because we may want to have ServerSockets be able to receive packets through all interfaces, e.g. - NICs are 192.168.5.2, 192.168.0.2 and 127.0.0.1 (loopback) - When the bind address is set to 192.168.5.2, a given ServerSocket on port 7500 will *only accept packets from this NIC* - If someone connects to 192.168.0.2:7500 or 127.0.0.1:7500, the client will not be able to establish a connection because nobody is listening on those ports on the given NICs - If bind address was not set, this would be possible - Affected: FD_SOCK, FD_PING, TCP, TCP_NIO etc - We need to think about semantics for MulticastSockets where a wildcard address (not setting the bind address) means that the operating system picks the NIC, and *not* that the MulticastSocket will listen on all interfaces for incoming packets Regards, Satya. --- satya narayana <satya_461(a)yahoo.com&gt; wrote: > > Hi Bela, > > > > It worked for me as long as I was stopping the NIC's > > which GMS address doesn't correspond. > > > > When I stopped the NIC which has the GMS Address > > specified by the member, I see them not > > communicating. > > > > If u have tried this and working for you , can you > > tell me the properties and options which u have > > specified to your demo ?