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Hi!
We have a very weird problem load-balancing UDP-based
RADIUS packets.
UDP 195.74.212.37:16450 rr
-> 195.74.212.26:16450 Route 1 0 0
-> 195.74.212.34:16450 Route 1 0 0
UDP 195.74.212.31:1646 wlc
-> 195.74.212.26:1646 Route 1 0 106
-> 195.74.212.10:1646 Route 1 0 106
UDP 195.74.212.31:1645 wlc
-> 195.74.212.26:1645 Route 1 0 1
-> 195.74.212.10:1645 Route 1 0 0
We try to load-balance 3 ports. 1645 (authentication),
1646 (accounting) and 16450 (authentication for another
kind of service).
What's weird is that 1645 works really fine but the 2
others rules just do not load-balance. Packets are always
sent to the same host. (in fact the first that was added
to the VS IP)
We have tried with newest version of the patch. We tried to
put the port on different VIP. Nothing changed. I tried
to take a look at the kernel source but I have to admit
I don't have the time nor the knowledge to really track
something down there.
We have been trying for one full month now to get this
to works without success. It's getting critical for us
to be able to load-balance that radius load on several
servers. However we are stuck.
If anyone got any idea, please tell us
OS: Linux vishnou 2.2.12 #1 Thu Sep 9 11:27:30 CEST
1999 i686 unknown
(tried with Redhat 6.2 2.2.14 patched kernel too)
Real Server OS: Solaris 2.6
Radius send single UDP packet at a high rate of
sometime 5 packets/sec. UDP packets come from a single
server (our central proxy radius).
regards,
Francois
Francois Baligant * * EuroNet Internet NV/SA
Network Operation Center * * a subsidiary of France Telecom
* Lozenberg 22 - B-1932 Zaventem
FB1-6BONE * tel: +32 2 717 17 17
francois@xxxxxxxxxxx fax: +32 2 717 17 77
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