Trouble "SQL Based IP Pool"
Leander S.
leander.schaefer at gmx.net
Wed May 7 19:20:42 CEST 2008
this is how my radius.conf looks like in the IPPOOL section:
##################################################################################
##################################################################################
ippool main_pool {
# range-start,range-stop: The start and end ip
# addresses for the ip pool
# range-start = 192.168.1.1
# range-stop = 192.168.3.254
# netmask: The network mask used for the ip's
# netmask = 255.255.255.0
# cache-size: The gdbm cache size for the db
# files. Should be equal to the number of ip's
# available in the ip pool
# cache-size = 800
# session-db: The main db file used to allocate ip's to
clients
# session-db = ${raddbdir}/db.ippool
# ip-index: Helper db index file used in multilink
# ip-index = ${raddbdir}/db.ipindex
# override: Will this ippool override a
Framed-IP-Address already set
# override = no
# maximum-timeout: If not zero specifies the maximum
time in seconds an
# entry may be active. Default: 0
# maximum-timeout = 0
}
# $INCLUDE ${confdir}/sqlippool.conf
$INCLUDE ${confdir}/postgresqlippool.conf
# OTP token support. Not included by default.
# $INCLUDE ${confdir}/otp.conf
##################################################################################
##################################################################################
and this is my postgresqlippool.conf which I'm using - it's left original.
## Configuration for the SQL based IP Pool module (rlm_sqlippool)
##
## The database schemas are available at:
##
## doc/examples/*.sql
##
## $Id: postgresqlippool.conf,v 1.1.2.1 2007/07/16 06:35:22 pnixon Exp $
sqlippool sqlippool {
################################################
## SQL instance to use (from postgresql.conf) ##
################################################
sql-instance-name = "sql"
## SQL table to use for ippool range and lease info
ippool_table = "radippool"
## IP lease duration. (Leases expire even if Acct Stop packet is lost)
lease-duration = 3600
## Attribute which should be considered unique per NAS
## Using NAS-Port gives behaviour similar to rlm_ippool. (And ACS)
## Using Calling-Station-Id works for NAS that send fixed NAS-Port
## ONLY change this if you know what you are doing!
pool-key = "%{NAS-Port}"
#pool-key = "%{Calling-Station-Id}"
###########################################
## PostgreSQL specific queries. ##
###########################################
## This query allocates an IP address from the Pool
## The ORDER BY clause of this query tries to allocate the same IP-address
## to the user that they had last session...
allocate-find = "SELECT framedipaddress FROM ${ippool_table} \
WHERE pool_name = '%{check:Pool-Name}' AND expiry_time <
'now'::timestamp(0) \
ORDER BY (username <> '%{SQL-User-Name}'), \
(callingstationid <> '%{Calling-Station-Id}'), expiry_time \
LIMIT 1 \
FOR UPDATE"
## If you prefer to allocate a random IP address every time, use this
query instead
#allocate-find = "SELECT framedipaddress FROM ${ippool_table} \
# WHERE pool_name = '%{check:Pool-Name}' AND expiry_time <
'now'::timestamp(0) \
# ORDER BY RANDOM() \
# LIMIT 1 \
# FOR UPDATE"
## This query marks the IP address handed out by "allocate-find" as used
## for the period of "lease-duration" after which time it may be reused.
allocate-update = "UPDATE ${ippool_table} \
SET nasipaddress = '%{NAS-IP-Address}', pool_key = '${pool-key}', \
callingstationid = '%{Calling-Station-Id}', username =
'%{SQL-User-Name}', \
expiry_time = 'now'::timestamp(0) + '${lease-duration} second'::interval \
WHERE framedipaddress = '%I'"
## This query frees the IP address assigned to "pool-key" when a new
request
## comes in for the same "pool-key". This means that either you are losing
## accounting Stop records or you use Calling-Station-Id instead of
NAS-Port
## as your "pool-key" and your users are able to reconnect before your NAS
## has timed out their previous session. (Generally on wireless networks)
## (Note: If your pool-key is set to Calling-Station-Id and not NAS-Port
## then you may wish to delete the "AND nasipaddress = '%{Nas-IP-Address}'
## from the WHERE clause)
allocate-clear = "UPDATE ${ippool_table} \
SET nasipaddress = '', pool_key = 0, callingstationid = '', \
expiry_time = 'now'::timestamp(0) - '1 second'::interval \
WHERE pool_key = '${pool-key}' \
AND nasipaddress = '%{Nas-IP-Address}'"
## This query extends an IP address lease by "lease-duration" when an
accounting
## START record arrives
start-update = "UPDATE ${ippool_table} \
SET expiry_time = 'now'::timestamp(0) + '${lease-duration}
second'::interval \
WHERE nasipaddress = '%{NAS-IP-Address}' \
AND pool_key = '${pool-key}'"
## This query frees an IP address when an accounting
## STOP record arrives
stop-clear = "UPDATE ${ippool_table} \
SET nasipaddress = '', pool_key = 0, callingstationid = '', \
expiry_time = 'now'::timestamp(0) - '1 second'::interval \
WHERE nasipaddress = '%{Nas-IP-Address}' \
AND pool_key = '${pool-key}' \
AND username = '%{SQL-User-Name}' \
AND callingstationid = '%{Calling-Station-Id}' \
AND framedipaddress = '%{Framed-IP-Address}'"
## This query extends an IP address lease by "lease-duration" when an
accounting
## ALIVE record arrives
alive-update = "UPDATE ${ippool_table} \
SET expiry_time = 'now'::timestamp(0) + '${lease-duration}
seconds'::interval \
WHERE nasipaddress = '%{Nas-IP-Address}' \
AND pool_key = '${pool-key}' \
AND username = '%{SQL-User-Name}' \
AND callingstationid = '%{Calling-Station-Id}' \
AND framedipaddress = '%{Framed-IP-Address}'"
## This query frees all IP addresses allocated to a NAS when an
## accounting ON record arrives from that NAS
on-clear = "UPDATE ${ippool_table} \
SET nasipaddress = '', pool_key = 0, callingstationid = '', \
expiry_time = 'now'::timestamp(0) - '1 second'::interval \
WHERE nasipaddress = '%{Nas-IP-Address}'"
## This query frees all IP addresses allocated to a NAS when an
## accounting OFF record arrives from that NAS
off-clear = "UPDATE ${ippool_table} \
SET nasipaddress = '', pool_key = 0, callingstationid = '', \
expiry_time = 'now'::timestamp(0) - '1 second'::interval \
WHERE nasipaddress = '%{Nas-IP-Address}'"
}
Thank you for helping
Regards,
Leander
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