From: simon hart (simon@harttel.com)
Date: Tue Oct 18 2005 - 10:48:03 GMT-3
Chuck et al,
DHCP server and relay functions are enabled as default. I think the reason
it is described as optional, is that you have to turn it on if you have ever
deviated from the default
Not sure why the router is not listening to port 67. However I can get my
router to handout IP's without using the service dhcp command
Simon
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Church, Chuck
Sent: 18 October 2005 14:26
To: Javier Tomi
Cc: Cisco certification
Subject: RE: Simple DHCP server question
Looks like a typo:
"The tasks in the first three sections are required. The tasks in the
remaining sections are optional.
* Enabling the Cisco IOS DHCP Server and Relay Agent Features (Optional)
* Configuring a DHCP Database Agent or Disabling DHCP Conflict Logging
(Required)
* Excluding IP Addresses (Required) "
It says the first 3 steps are required, but then lists the first one as
optional. It's not optional.
Chuck Church
Lead Design Engineer
CCIE #8776, MCNE, MCSE
Netco Government Services - Design & Implementation Team
1210 N. Parker Rd.
Greenville, SC 29609
Home office: 864-335-9473
Cell: 864-266-3978
cchurch@netcogov.com
PGP key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x4371A48D
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Javier Tomi
Sent: Tuesday, October 18, 2005 3:56 AM
Cc: Cisco certification
Subject: Re: Simple DHCP server question
Hi Andras,
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/fipr
_c/ipcprt1/1cfdhcp.htm
(Doc from release 12.2). Under the DHCP configuration task list:
"Enabling the Cisco IOS DHCP Server and Relay Agent Features
<1cfdhcp.htm#wp1018944> (Optional)"...
Regards
Javi
Kulcsar Andras Benjamin wrote:
>Hi,
>
>The IOS 12.4 command reference clearly states that using the "no service
dhcp" disables the DHCP server and relay agent features.
>http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hiad_
r/adr_s1h.htm#wp1139885
>
>
>Which reference did you read?
>
>Best regards,
>Andras Kulcsar
>
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Javier Tomi
>Sent: Tuesday, October 18, 2005 8:23 AM
>To: Cisco certification
>Subject: Simple DHCP server question
>
>
>Hi all,
>
>Just a simple question regarding DHCP. On DocCD it is stated that
>"service dhcp" is an optional step in order to configure the router as a
>DHCP server. In fact that command is suppose to enable dhcp relay
>function on the router. Nevertheless, I have notice that according to
>"show ip sockets" command the router seems not to be listening to port
>67 until "service dhcp" is issued.
>
>This is the output from the router...
>
>RSCbD#
>RSCbD#sri service dhcp
>no service dhcp
>RSCbD#
>RSCbD#show ip sockets
>Proto Remote Port Local Port In Out Stat TTY OutputIF
> 17 --listen-- 192.168.32.31 1985 0 0 1 0
> 17 172.31.1.7 162 192.168.32.31 58617 0 0 0 0
> 17 172.31.2.7 162 192.168.32.31 51358 0 0 0 0
> 17 --listen-- 192.168.32.31 123 0 0 1 0
> 17 --listen-- 192.168.32.31 520 0 0 1 0
> 17 --listen-- 192.168.32.31 161 0 0 1 0
> 17 --listen-- 192.168.32.31 162 0 0 11 0
> 17 --listen-- 192.168.32.31 55835 0 0 11 0
> 17 --listen-- 224.0.1.40 496 0 0 61 1
>RSCbD#
>RSCbD#
>RSCbD#conf t
>Enter configuration commands, one per line. End with CNTL/Z.
RSCbD(config)#service dhcp RSCbD(config)#exit RSCbD# RSCbD#show ip sockets
>Proto Remote Port Local Port In Out Stat TTY OutputIF
> 17 --listen-- 192.168.32.31 1985 0 0 1 0
> 17 172.31.1.7 162 192.168.32.31 58617 0 0 0 0
> 17 172.31.2.7 162 192.168.32.31 51358 0 0 0 0
> 17 --listen-- 192.168.32.31 123 0 0 1 0
> 17 --listen-- 192.168.32.31 520 0 0 1 0
> 17 --listen-- 192.168.32.31 161 0 0 1 0
> 17 --listen-- 192.168.32.31 162 0 0 11 0
> 17 --listen-- 192.168.32.31 55835 0 0 11 0
> 17 --listen-- 224.0.1.40 496 0 0 61 1
> 17 0.0.0.0 0 192.168.32.31 67 0 0 2211 0
>RSCbD#
>
>How does the router receives the DHCP request if there is no socket
>opened on port 67?...
>
>Thank you in advance....
>
>Javi
>
>_______________________________________________________________________
>Subscription information may be found at:
>http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Sun Nov 06 2005 - 22:00:51 GMT-3