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After settting up a trace i found this error :

User Datagram Protocol, Src Port: 23361 (23361), Dst Port: radius-acct (1813)
[Malformed Packet: RADIUS]
    [Expert Info (Error/Malformed): Malformed Packet (Exception occurred)]
        [Message: Malformed Packet (Exception occurred)]
        [Severity level: Error]
        [Group: Malformed]

what could be the cause?

asked 05 Aug '11, 07:09

jay's gravatar image

jay
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accept rate: 0%

edited 05 Aug '11, 07:22

SYN-bit's gravatar image

SYN-bit ♦♦
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This either was not a radius accounting packet, but wireshark thought it was because it was sent on the radius accounting port (1813) or it was indeed a radius accounting packet, but wireshark was not able to dissect it correctly.

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answered 05 Aug '11, 07:25

SYN-bit's gravatar image

SYN-bit ♦♦
17.1k957245
accept rate: 20%

We'd need to see the trace - or, at least, the offending packet from the trace - to know for sure, but my suspicion is that it wasn't a RADIUS packet but was dissected as such because it was sent to port 1813. (TCP and UDP ports, unlike, for example, Ethernet packet types, are not certain indicators of packet types.)

(05 Aug '11, 17:38) Guy Harris ♦♦
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question asked: 05 Aug '11, 07:09

question was seen: 3,059 times

last updated: 05 Aug '11, 17:38

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