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New Member

NTP on Router - Why does the router not update?

After a power-on the router does not update its time and date even though NTP servers have been configured.

I can change the time manually now, but what if there is another power-outage.

5 REPLIES

Re: NTP on Router - Why does the router not update?

Was NTP configured and WORKING properly before power down???

New Member

Re: NTP on Router - Why does the router not update?

Configured, Yes. Whether it was working properly I don't know.

Power down/up was 5 weeks ago, date was April 1993 - BIOS Date.

The router is a 3640.

New Member

Re: NTP on Router - Why does the router not update?

I get the following from "Debug ntp packets"

(as you can see there are tooooo many zero's.)

.Jun 10 09:22:22.879 GMT+1: NTP: xmit packet to 196.44.136.165:

.Jun 10 09:22:22.879 GMT+1: leap 3, mode 3, version 3, stratum 0, ppoll 64

.Jun 10 09:22:22.879 GMT+1: rtdel 0000 (0.000), rtdsp 10001 (1000.015), refid 00000000 (0.0.0.0)

.Jun 10 09:22:22.879 GMT+1: ref 00000000.00000000 (01:00:00.000 GMT+1 Mon Jan 1 1900)

.Jun 10 09:22:22.879 GMT+1: org 00000000.00000000 (01:00:00.000 GMT+1 Mon Jan 1 1900)

.Jun 10 09:22:22.879 GMT+1: rec 00000000.00000000 (01:00:00.000 GMT+1 Mon Jan 1 1900)

.Jun 10 09:22:22.879 GMT+1: xmt C0AEE03E.E1420627 (09:22:22.879 GMT+1 Mon Jun 10 2002)

.Jun 10 09:22:24.879 GMT+1: NTP: xmit packet to 196.44.128.146:

.Jun 10 09:22:24.879 GMT+1: leap 3, mode 3, version 3, stratum 0, ppoll 64

.Jun 10 09:22:24.879 GMT+1: rtdel 0000 (0.000), rtdsp 10001 (1000.015), refid 00000000 (0.0.0.0)

.Jun 10 09:22:24.879 GMT+1: ref 00000000.00000000 (01:00:00.000 GMT+1 Mon Jan 1 1900)

.Jun 10 09:22:24.879 GMT+1: org 00000000.00000000 (01:00:00.000 GMT+1 Mon Jan 1 1900)

.Jun 10 09:22:24.879 GMT+1: rec 00000000.00000000 (01:00:00.000 GMT+1 Mon Jan 1 1900)

.Jun 10 09:22:24.879 GMT+1: xmt C0AEE040.E1469D4C (09:22:24.879 GMT+1 Mon Jun 10 2002)

New Member

Re: NTP on Router - Why does the router not update?

Well, I had a two page answer for you, but the stupid time out wiped it out without giving me a chance to copy it.

Here's the short answer:

1. ping the time servers from the router and confirm connectivity to the servers.

2. Get on a unix box and use the 'ntpq -p ipaddressofserver' and check out the results.

3. Look at this doc:

http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/B2355-90685/B2355-90685_top.html&con=/hpux/onlinedocs/B2355-90685/00/00/63-con.html&toc=/hpux/onlinedocs/B2355-90685/00/00/63-toc.html&searchterms=ntp&queryid=20020617-072449

4. Look at this doc:

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/sw_6_2/confg_gd/ntp.htm

5. do a 'show ntp assoc det' for more info on your NTP.

I hope this helps.

New Member

Re: NTP on Router - Why does the router not update?

Well, I had a two page answer for you, but the stupid time out wiped it out without giving me a chance to copy it.

Here's the short answer:

1. ping the time servers from the router and confirm connectivity to the servers.

2. Get on a unix box and use the 'ntpq -p ipaddressofserver' and check out the results.

3. Look at this doc:

http://docs.hp.com/cgi-bin/fsearch/framedisplay?top=/hpux/onlinedocs/B2355-90685/B2355-90685_top.html&con=/hpux/onlinedocs/B2355-90685/00/00/63-con.html&toc=/hpux/onlinedocs/B2355-90685/00/00/63-toc.html&searchterms=ntp&queryid=20020617-072449

4. Look at this doc:

http://www.cisco.com/univercd/cc/td/doc/product/lan/cat6000/sw_6_2/confg_gd/ntp.htm

5. do a 'show ntp assoc det' for more info on your NTP.

I hope this helps.

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