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https://issues.apache.org/jira/browse/DIRMINA-996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16855585#comment-16855585
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Anton Vinokurov commented on DIRMINA-996:
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I can confirm this issue as critical for my application which uses MINA.
We developed a RADIUS server listening on udp:K.L.M.N:1812 and udp:K.L.M.N:1813
sockets.
Remote system sends a RADIUS Auth packet from A.B.C.D:12340 to K.L.M.N:1812,
new session is created, a reply is send from K.L.M.N:1812 to A.B.C.D:12340.
Remote system sends a RADIUS Acct packet from A.B.C.D:12340 to K.L.M.N:1813,
new session is NOT created, a reply is send from K.L.M.N:1812 to A.B.C.D:12340
while A.B.C.D expects K.L.M.N:1813 as source.
The problem is in IoSessionRecycler, which uses only remoteAddress as a key,
not localAddress-remoteAddress pair.
> IoSessionRecycler RemoteAddress Collision
> -----------------------------------------
>
> Key: DIRMINA-996
> URL: https://issues.apache.org/jira/browse/DIRMINA-996
> Project: MINA
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.0.7
> Reporter: Flavio Battimo
> Assignee: Jonathan Valliere
> Priority: Critical
> Fix For: 2.1.4
>
>
> When using NioDatagramAcceptor with multiple binded local addresses the
> IoSessionRecycler is not working as expected.
> If the acceptor has been prefilled with two sessions:
> remoteaddr=192.168.1.10:2001 localaddr=192.168.1.20:1000
> remoteaddr=192.168.1.10:2001 localaddr=192.168.1.20:1001
> so with same remote address but different local address, when the recycle
> method of IoSessionRecycler interface is called only remote address is
> passed. The recycler returns the same IoSession for incoming datagrams on two
> different local addresses of the same acceptor.
> The IoSessionRecycler should have the local address parameter also in order
> to find the correct IoSession.
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