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L2TP and UTI

Hello All,

After upgraing my router IOS I start getting following errors, When i serached for them i found its a known Bug (CSCef00586)

.Nov 22 11:20:23.136: %L2TP-3-ILLEGAL: _____:________: ERROR: [l2tp_db_get_cc::1035],  -Traceback= 0x4173441C 0x431217F8 0x4312199C 0x4311F6A4 0x43142484 0x408A71B8 0x40286D74 0x40286FF0 0x4008C4C8 0x4009CACC
.Nov 22 11:20:23.140: %L2TP-3-ILLEGAL: _____:________:   failed to get cc: no l2tp db hdl,  -Traceback= 0x4173441C 0x431217F8 0x431219B0 0x4311F6A4 0x43142484 0x408A71B8 0x40286D74 0x40286FF0 0x4008C4C8 0x4009CACC
.Nov 22 11:20:26.896: %L2TP-3-ILLEGAL: _____:________: ERROR: [l2tp_db_get_cc::1035],  -Traceback= 0x4173441C 0x431217F8 0x4312199C 0x4311F6A4 0x43142484 0x408A71B8 0x40286D74 0x40286FF0 0x4008C4C8 0x4009D544
.Nov 22 11:20:26.900: %L2TP-3-ILLEGAL: _____:________:   failed to get cc: no l2tp db hdl,  -Traceback= 0x4173441C 0x431217F8 0x431219B0 0x4311F6A4 0x43142484 0x408A71B8 0x40286D74 0x40286FF0 0x4008C4C8 0x4009D544
.Nov 22 11:23:22.384: %L2TP-3-ILLEGAL: _____:________: ERROR: [l2tp_db_get_cc::1035],  -Traceback= 0x4173441C 0x431217F8 0x4312199C 0x4311F6A4 0x43142484 0x408A71B8 0x40286D74 0x40286FF0 0x4008C4C8 0x41325BA0
.Nov 22 11:23:22.388: %L2TP-3-ILLEGAL: _____:________:   failed to get cc: no l2tp db hdl,  -Traceback= 0x4173441C 0x431217F8 0x431219B0 0x4311F6A4 0x43142484 0x408A71B8 0x40286D74 0x40286FF0 0x4008C4C8 0x41325BA0
.Nov 22 11:29:26.704: %L2TP-3-ILLEGAL: _____:________: ERROR: [l2tp_db_get_cc::1035],  -Traceback= 0x4173441C 0x431217F8 0x4312199C 0x4311F6A4 0x43142484 0x408A71B8 0x40286D74 0x40286FF0 0x4008C4C8 0x4009CACC
.Nov 22 11:29:26.708: %L2TP-3-ILLEGAL: _____:________:   failed to get cc: no l2tp db hdl,  -Traceback= 0x4173441C 0x431217F8 0x431219B0 0x4311F6A4 0x43142484 0x408A71B8 0x40286D74 0x40286FF0 0x4008C4C8 0x4009CACC

Infirmation realted to Bug i found is below:-

      

L2TP- L2X proc running and IP protocols (115 & 120) open without config In Cisco IOS software that includes L2TP support, four processes may
may be created even if there is no L2TP configured. These are the processes:
Router#sh proc cpu | i L2
47 4 1 4000 0.00% 0.00% 0.00% 0 L2X Socket proce
48 12 1 12000 0.00% 0.00% 0.00% 0 L2X SSS manager
49 8 1 8000 0.00% 0.00% 0.00% 0 L2TP mgmt daemon
50 16 1 16000 0.00% 0.00% 0.00% 0 L2X Data Daemon
Router#
The process consumes a small amount of memory, but should not consume any CPU resources.

As a consequence the L2TP and UTI IP Protocol numbers of 115 and 120 respectively are open. IP packets containing those IP protocols are absorved
and do not generate ICMP protocol unreachable messages.

There is no workaround.

Can you please let me know, i am getting these erros just as service is running or some is try to expolite the Router?

Thanks

Jagdev

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