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Cisco Bug: CSCvs18024 - [autoinstall] obtained DHCP hostname truncated || DATACORRUPTION || CRASH

Last Modified

Jul 21, 2020

Products (1)

  • Cisco Catalyst 3900 Software

Known Affected Releases

Gibraltar-16.11.1 Gibraltar-16.12.1

Description (partial)

IE3x00 switch obtaining Hostname via DHCP Option 12 during AutoInstall process will report the following error message when DHCP Option 12 contains hostname above 21 characters

*Jan  1 21:08:19.583: AUTOINSTALL: Obtain tftp server name resolved to
*Jan  1 21:08:19.585: %DATACORRUPTION-1-DATAINCONSISTENCY: strcpy_s: not enough space for src,  -PC= :400000+4ADEAD0
-Traceback= 1#2e9cd671831b0ff2f6f085db00dd082d   :400000+2703C4C :400000+2738FB8 :400000+4ADEAD0 :400000+27CB230 :400000+33F0E50 :400000+33F3208 :400000+476A48
*Jan  1 21:08:19.585: DHCPD: string copy failed for hostname

also last 2 characters of the hostname might be truncated

HW: IE3x00 switch
SW: 16.11.1 or 16.12.1
Autoinstall process is used
hostname is supplied via DHCP Option 12
hostname has 21 or more characters
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