PPTP - Radius connection failure

[John Kane]

Forgive me if this is not the correct mailing list for this question
(and if not, point me to the correct one, if possible).

I am running PPTP (poptop w/radiusclient) on the same RHEL Linux box as
the freeradius server.  Initially, all works well.  But after some time
(30-45 min?), the radius server quits responding, and I see this in the
pptpd.log:

	Jun 16 14:32:35 time3 pppd[29588]: rc_send_server: no reply from
RADIUS server localhost.localdomain:1812


Running radiusd in debug mode shows nothing coming in for this query,
although the server shows to be listening:

	[root at time3 raddb]# netstat -ua | grep rad
	udp    19260      0 *:radius                    *:*
	udp        0      0 *:radius-acct               *:*


When this is occurring, radtest also fails, as it never gets a response
(just keep resending).


I am running (sorry, I realize that is no longer supported, but that's
RH's latest Freeradius RPM, thus what I am required to use):

freeradius 1.1.3
freeradius-client 1.1.6
ppp 2.2.4
pptpd 1.3.4



My configs:

# cat /etc/radiusclient/radiusclient.conf | grep -v '#' | grep -v '^$'
auth_order      radius
login_tries     4
login_timeout   60
nologin         /etc/nologin
issue           /etc/radiusclient/issue
authserver      localhost
acctserver      localhost
servers         /etc/radiusclient/servers
dictionary      /etc/radiusclient/dictionary
login_radius    /usr/sbin/login.radius
seqfile         /var/run/radius.seq
mapfile         /etc/radiusclient/port-id-map
default_realm
radius_timeout  10
radius_retries  3
login_local     /bin/login



# cat /etc/radiusclient/servers | grep -v '#' | grep -v '^$'
localhost/localhost                             testing123



# cat /etc/pptpd.conf | grep -v '#' | grep -v '^$'
ppp /usr/sbin/pppd
option /etc/ppp/options.pptpd
debug
stimeout 5
logwtmp
connections 63
localip 172.20.1.143
remoteip 172.20.2.128-191




# cat /etc/ppp/options.pptpd | grep -v '#' | grep -v '^$'
name pptpd
refuse-pap
refuse-chap
refuse-mschap
require-mschap-v2
require-mppe-128
ms-dns 172.24.2.197
ms-dns 172.24.2.196
proxyarp
debug
dump
lock
nobsdcomp
novj
novjccomp
nologfd
plugin radius.so
plugin radattr.so


Thanks for any help or suggestions,
John




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