On Thu, Dec 16, 2004 at 09:34:21PM +0100, Alfred H. Dahl wrote: > >> we have a problem with our IP-POOL.
> >> We run pppoe-servers from Mikrotik, and we assign IP to the client > >> using freeradius 0.9.3. > >> If a Mikrotik pppoe-server stops, or the accounting-stop-packet from > >> the pppoe-server does not reach the radius-server, the IP-address is > >> not freed from the ip_pool, meaning we get "stale" sessions in the > >> IP-Pool. Now I think about it, there's supposed to be an accounting packet that comes in when a NAS is shut down... I just don't recall if rlm_ippool processes it or not. ^_^ > >Depending on the port-numbers you're getting from the pppoe server, this > >shouldn't be a problem. If your port numbers are densely populated, > >and there are less than the entries in your IP pool, stale entries aren't a > >problem. > > what does this mean? If the IP is marked as "active" - will the plugin check > to see if the session still exist, and if not, free the IP? If a new session comes in on a NAS/port combination with an IP address marked as active, the ippool code frees that IP before it tries to allocate one. Or at least that's how I remember it, code unseen. > what happens when all the IP's are marked as active, and the server receives > yet another login? Then you have more ports than IP addresses, and rlm_ippool has issues, as I said above, or you have exactly the same number of ports as IP addresses, and the incoming request should clear the old IP address on that port/IP, and then reassign it again. -- Paul "TBBle" Hampson, on an alternate email client. - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
