freeradius2 Load-Balance Issue

[Brian Carpio]

Hi,

I am using FreeRADIUS Version 2.1.7, this is the RPM for RHEL made available
from (http://people.redhat.com/jdennis/freeradius-rhel-centos) which was
linked by the RedHat FAQ on the FreeRadius Wiki (actually I downloaded the
.srpm and change the .spec file to include --with-udpfromto in the configure
line).

Anyway I seem to have an odd issue. I have two home servers configured with
the below proxy.conf, the issue is when both server1 and server2 are up load
balancing works fine when I take down server 1 it goes into zombie then it
is marked dead which is all great (I posted those messages below as well),
then when I bring server 1 back online FreeRadius' status_check sees the
server up ( I posted that message below as well) however no more Radius
requests go to server1 (not unless I take server2 down then I can see
server1 starts to receive the requests) but it seems like either there is a
bug or I have something mis configured because I would assume once the
status_check notices server1 is back online it should start to receive
radius requests again..

home_server server1 {
        type = auth+acct
        ipaddr = XXX.XXX.XXXX.XXXX
        port = 1812,1813
        secret = secret
        require_message_authenticator = no
        response_window = 20
        zombie_period = 10
       # revive_interval = 120
        status_check = request
        username = username at host.com
        password = secret
        check_interval = 5
        num_answers_to_alive = 3
}

home_server server2 {
        type = auth+acct
        ipaddr = XXX.XXX.XXX.XXX
        port = 1812,1813
        secret = secret
        require_message_authenticator = no
        response_window = 20
        zombie_period = 10
       # revive_interval = 120
        status_check = request
        username = username at host.com
        password = secret
        check_interval = 5
        num_answers_to_alive = 3
}

home_server_pool balance {
        type = load-balance
        home_server = pcrf01
        home_server = pcrf02
}

realm DEFAULT {
        pool = balance
        nostrip
}

------------------ end proxy.conf --------------------

------ DEAD SERVER --------------------

PROXY: Marking home server XXX.XXX.XXX.XXX port 1812 as zombie (it looks
like it is dead).
Sending Access-Request of id 222 to XXX.XXX.XXX.XXX port 1812
        User-Name := "username at host.com"
        User-Password := "secret"
        Service-Type := Authenticate-Only
        Message-Authenticator := 0x00000000000000000000000000000000
        NAS-Identifier := "Status Check. Are you alive?"
Waking up in 3.9 seconds.
Waking up in 4.3 seconds.

---------- end DEAD SERVER ------------

------ Server Alive -----------------

rad_recv: Access-Accept packet from host XXX.XXX.XXX.XXX port 1812, id=185,
length=20
Waking up in 10.0 seconds.

--------- end Server Alive -------------
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