RADIUS_DEAD errors

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Nov 5th, 2008
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We see numerous entries in the log about RADIUS_DEAD, RADIUS_ALIVE. Anyone seen this?

cisco WS-C6506-E (R7000) processor (revision 1.1) with 458752K/65536K bytes of memory.

Processor board ID SAL1215M20E

R7000 CPU at 300Mhz, Implementation 0x27, Rev 3.3, 256KB L2, 1024KB L3 Cache

Last reset from power-on

10 Virtual Ethernet interfaces

48 FastEthernet interfaces

57 Gigabit Ethernet interfaces

1915K bytes of non-volatile configuration memory.


65536K bytes of Flash internal SIMM (Sector size 512K).

Configuration register is 0x2102


System image file is "bootdisk:s3223-advipservicesk9_wan-mz.122-33.SXH2a.bin"


We have verified that the RADIUS serviuces on TACACS is active .

s0llbrt-core2#

Nov 5 10:20:26: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.196:1645,1646 is not responding.

Nov 5 10:20:26: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.196:1645,1646 has returned.

s0llbrt-core2#

Nov 5 10:21:08: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.128:1645,1646 is not responding.

Nov 5 10:21:08: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.128:1645,1646 has returned.

Nov 5 10:21:30: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.196:1645,1646 is not responding.

Nov 5 10:21:30: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.196:1645,1646 has returned.

Nov 5 10:21:42: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.128:1645,1646 is not responding.

Nov 5 10:21:42: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.128:1645,1646 has returned.

Nov 5 10:22:03: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.196:1645,1646 is not responding.

Nov 5 10:22:03: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.196:1645,1646 has returned.

Nov 5 10:22:06: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.128:1645,1646 is not responding.

Nov 5 10:22:06: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.128:1645,1646 has returned.

Nov 5 10:22:28: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.196:1645,1646 is not responding.

Nov 5 10:22:28: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.196:1645,1646 has returned.

Nov 5 10:23:13: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.128:1645,1646 is not responding.

Nov 5 10:23:13: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.128:1645,1646 has returned.

Nov 5 10:23:34: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.196:1645,1646 is not responding.

Nov 5 10:23:34: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.196:1645,1646 has returned.

Nov 5 10:24:02: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.128:1645,1646 is not responding.

Nov 5 10:24:02: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.128:1645,1646 has returned.

Nov 5 10:24:23: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.196:1645,1646 is not responding.

Nov 5 10:24:23: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.196:1645,1646 has returned.

Nov 5 10:25:00: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.128:1645,1646 is not responding.

Nov 5 10:25:00: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.128:1645,1646 has returned.

Nov 5 10:25:21: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.196:1645,1646 is not responding.

Nov 5 10:25:21: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.196:1645,1646 has returned.

Nov 5 10:25:26: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.128:1645,1646 is not responding.

Nov 5 10:25:26: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.128:1645,1646 has returned.

Nov 5 10:25:47: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.128:1645,1646 is not responding.

Nov 5 10:25:47: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.128:1645,1646 has returned.

Nov 5 10:25:47: %RADIUS-4-RADIUS_DEAD: RADIUS server 10.129.12.196:1645,1646 is not responding.

Nov 5 10:25:47: %RADIUS-4-RADIUS_ALIVE: RADIUS server 10.129.12.196:1645,1646 has returned.

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Can you ping 10.129.12.196? Is the radius server configured for this device? Are you using the right ports (we use 1812 and 1813 on Steel-Belted Radius) Do you have these commands in your config:

radius-server host x.x.x.x auth-port #### acct-port ####

radius-server key somekey

ip radius source-interface f 0/0 (or what ever interface might be applicable?)

rice.randy Wed, 11/05/2008 - 08:05
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s0llbrt-core1#ping 10.129.12.128


Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.129.12.128, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/8 ms



s0llbrt-core1#ping 10.129.12.196


Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.129.12.196, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/5/8 ms



ip radius source-interface Loopback0

radius-server attribute 8 include-in-access-req

radius-server host 10.129.12.128 auth-port 1645 acct-port 1646

radius-server host 10.129.12.196 auth-port 1645 acct-port 1646

radius-server source-ports 1645-1646

radius-server key 7 key

radius-server vsa send accounting

radius-server vsa send authentication


vsraghav123 Wed, 11/05/2008 - 08:45
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I received the same errors sometime back in some of my access points , hope this helps in your case too


If you have enabled the command " radius-server deadtime " then this an informational message , When you enable this setting, it causes the Cisco IOS software to mark dead any Radius servers that fail to respond to authentication requests, that avoid the wait for the request to time out before the attempt to the next configured server. A Radius server marked as dead is skipped by additional requests for the duration of minutes unless all servers are marked dead.



rice.randy Wed, 11/05/2008 - 10:04
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No, that command is not in my Config. I have listed all RADIUS_SERVER statements above in a previous post. Thanks anyway.

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