01-22-2011 08:15 AM - edited 03-16-2019 03:01 AM
Hello I have a CUBE 2821 with IOS c2800nm-advipservicesk9-mz.124-24.T4.bin but I get this message
%IP-3-LOOPPAK: Looping packet detected and dropped -
src=10.6.1.252, dst=10.6.1.252, hl=20, tl=92, prot=17, sport=18231, dport=16977
in=local, nexthop=10.6.1.252, out=GigabitEthernet0/0
options=none -Process= "VOIP_RTCP", ipl= 0, pid= 315, -Traceback= 0x420A6568z 0x420A67ECz 0x420A7978z 0x420A88D4z 0x420A8D00z 0x420A99C8z 0x420A9FACz 0x420AA018z 0x42357F0Cz 0x433A3114z 0x433A9818z 0x43215824z 0x43215808z
Jan 22 14:28:25.597: %IP-3-LOOPPAK: Looping packet detected and dropped -
src=10.6.1.252, dst=10.6.1.252, hl=20, tl=92, prot=17, sport=18231, dport=17449
in=local, nexthop=10.6.1.252, out=GigabitEthernet0/0
options=none -Process= "VOIP_RTCP", ipl= 0, pid= 315, -Traceback= 0x420A6568z 0x420A67ECz 0x420A7978z 0x420A88D4z 0x420A8D00z 0x420A99C8z 0x420A9FACz 0x420AA018z 0x42357F0Cz 0x433A3114z 0x433A9818z 0x43215824z 0x43215808z
I found that but I do not have any helper-address in my config
The %IP-3-LOOPPAK: Looping packet detected and dropped error message is received because of a looping packet that has been detected. A common cause is a misconfiguration of an IP helper address. The helper address should be the same address as that of the server of the intended service. Putting the address of the router in the helper address causes a routing loop to be created.
The recommended action is to analyze the source and destination address of the looped packets and verify that the configuration of the IP helper addresses in the router correctly points to the right device and does not point to the local router itself.
can anyone help me?
Thanks
01-22-2011 09:18 AM
I would start updating to 15.0(1)M4 that is known to be more stable.
01-28-2013 05:30 AM
Did you ever get an answer to this question. I am seeing the same messages in my logs now.
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