[tac_plus] Tacacs problem with packets

[heasley]

Fri, Dec 26, 2014 at 11:02:22PM +0000, Jetmir Sulmina:
> No just rebooting does not resolve it. The same error log appears after reboot.

based on that, it seems clearly not a tacacs problem.  i would suspect either
o/s patches installs changing libraries, a packet filter bug or
misconfiguration, a hardware problem, a malicious co-worker or your machine
is compromised.

> The packet is received from tacacs before the login fields are displayed to enter username and password. That’s why the user field is empty at below logs.

that is normal.  see the IETF draft for the tacacs protocol.