cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
2591
Views
5
Helpful
2
Replies

Log time and system time difference

giosportech
Level 1
Level 1

The time stamped in logs and system time of our router has an 8 hour time difference. Below is a sample output of the time difference:

Nov 25 05:00:49.312: %SYS-5-CONFIG_I: Configured from console by network on vty0

router#sh clock

13:07:34.208 GMT Thu Nov 25 2004

How can I make them synchronized? I've already set the ntp server and timezone. Have I overlooked something?

Router Specs:

Platform:2621XM

IOS: 12.3(7)T4

Modules Connected: NM-16AH-V2 at slot 1

Running Config:

(some lines deleted for security purposes)

!

!

version 12.3

service timestamps debug datetime msec

service timestamps log datetime msec

service password-encryption

!

hostname dostras

!

boot-start-marker

boot-end-marker

!

!

clock timezone GMT 8

no network-clock-participate slot 1

no network-clock-participate wic 0

!

!

aaa authentication login default group radius local

aaa authentication login localauth local

aaa authentication ppp default if-needed group radius local

aaa authorization exec default group radius local

aaa authorization exec localauth local

aaa authorization network default group radius local

aaa accounting delay-start

aaa accounting exec default start-stop group radius

aaa accounting network default start-stop group radius

aaa session-id common

ip subnet-zero

ip cef

!

!

!

ip dhcp pool DIALUP

!

no ip domain lookup

ip domain name dost.gov.ph

no ftp-server write-enable

!

modemcap entry 1

!

!

!

interface Loopback0

ip address 1.1.1.1 255.255.255.0

!

interface FastEthernet0/0

description Connection to Catalyst

duplex auto

speed auto

!

interface Group-Async1

ip unnumbered FastEthernet0/0

dialer in-band

dialer idle-timeout 600

dialer-group 1

ntp broadcast client

ntp multicast client

ntp multicast

async mode dedicated

peer default ip address dhcp-pool DIALUP

ppp max-bad-auth 3

ppp authentication chap

group-range 33 48

!

no ip classless

ip http server

!

!

dialer-list 1 protocol ip permit

!

control-plane

!

line con 0

line 33 48

line aux 0

line vty 0 4

transport output all

ntp clock-period 17180361

ntp server 202.90.129.206

!

!

en

2 Replies 2

Kevin Dorrell
Level 10
Level 10

Hi,

The confusion here is the clock timezone GMT 8 command. For reference, here is the documentation:

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/ffun_r/ffrprt3/frf012.htm#wp1018092

The timezone you put in should be your timezone. Since you have configured an offset of 8 hours from UTC, I am guessing you are in Western Australia, so you would want something like clock timezone WST 8. GMT is Greenwich mean time, which is almost equivalent to UTC. But that is only cosmetic.

Do the cosmetic change I suggested. It may just be a matter of the presentation of the sh clock. I don't know whether you did that command at your lunchtime, or late evening. I think it was your lunchtime, and the logs are stamping the UTC. The GMT is just confusing you.

(If you ever get a dot in front of your log timestamp entries, then the NTP is not synchronised. But that is not the case here.)

You need the keyword localtime in your service timestamps.

Kevin Dorrell

Luxembourg

Kevin,

The command service timestamps logging/debug localtime did the trick.

Thanks!