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Cisco Bug: CSCum77012 - Tacacs error: protocol error - Read y - bytes from x.x.x.x , expecting z

Last Modified

Feb 04, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

16.0(500)

Description (partial)

Symptom:
[local]GGSN-CEN-GT# sho logs | grep tacacs
Monday October 07 07:36:18 CST 2013
2013-Oct-07+07:36:13.324 [tacacs+ 37200 error] [8/0/4734 <vpnmgr:1> tac_utils.c:22] [software internal system critical-info syslog] protocol error - Read -1 bytes from 10.87.227.190 , expecting 12
2013-Oct-07+07:36:13.324 [tacacs+ 37200 error] [8/0/4734 <vpnmgr:1> tac_utils.c:22] [software internal system critical-info syslog] protocol error - 10.87.227.190 : error reading fd 15 nread=-1 Resource temporarily unavailable
2013-Oct-07+07:36:13.324 [tacacs+ 37200 error] [8/0/4734 <vpnmgr:1> tac_utils.c:22] [software internal system critical-info syslog] protocol error - Read -1 bytes from 10.87.227.190 , expecting 12
2013-Oct-07+07:36:13.324 [tacacs+ 37200 error] [8/0/4734 <vpnmgr:1> tac_utils.c:22] [software internal system critical-info syslog] protocol error - 10.87.227.190 : error reading fd 15 nread=-1 Resource temporarily unavailable
2013-Oct-07+07:36:13.324 [tacacs+ 37200 error] [8/0/4734 <vpnmgr:1> tac_utils.c:22] [software internal system critical-info syslog] protocol error - Read -1 bytes from 10.87.227.190 , expecting 12
2013-Oct-07+07:36:13.324 [tacacs+ 37200 error] [8/0/4734 <vpnmgr:1> tac_utils.c:22] [software internal system critical-info syslog] protocol error - 10.87.227.190 : error reading fd 15 nread=-1 Resource temporarily unavailable
[local]GGSN-CEN-GT#

Conditions:
Tacacs configured and telnet access attempted with blank username/password.
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