Configuration Examples for Kerberos
no tarp propagate
!
interface Async3
ip unnumbered Ethernet0
encapsulation ppp
shutdown
async dynamic address
async dynamic routing
async mode dedicated
no cdp enable
ppp authentication pap local
no tarp propagate
!
router eigrp 109
network 172.17.0.0
no auto-summary
!
ip default-gateway 172.30.55.64
ip domain-name cisco.com
ip name-server 192.168.0.0
ip classless
!
!
line con 0
exec-timeout 0 0
login authentication console
line 1 16
transport input all
line aux 0
transport input all
line vty 0 4
password sMudgKin
!
ntp clock-period 17179703
ntp peer 172.19.10.0
ntp peer 172.19.0.0
end
The following example shows how to enable user authentication on the device via the Kerberos database. To
enable user authentication via the Kerberos database, you would perform the following tasks:
• Entering configuration mode
• Defining the Kerberos local realm
• Identifying the machine hosting the KDC
• Enabling credentials forwarding
• Specifying Kerberos as the method of authentication for login
• Exiting configuration mode (CTL-Z)
• Writing the new configuration to the terminal
chet-2500# configure term
Enter configuration commands, one per line. End with CNTL/Z.
chet-2500(config)# kerberos local-realm CISCO.COM
chet-2500(config)# kerberos server CISCO.COM chet-ss20
Translating "chet-ss20"...domain server (192.168.0.0) [OK]
chet-2500(config)# kerberos credentials forward
chet-2500(config)# aaa authentication login default krb5
chet-2500(config)#
chet-2500#
%SYS-5-CONFIG_I: Configured from console by console
chet-2500# write term
Consolidated Platform Configuration Guide, Cisco IOS Release 15.2(4)E (Catalyst 2960-X Switches)
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