From: "Hoonpongsimanont
Date: Sat Nov 06 2004 - 12:13:24 GMT-3
Hi all,
Does Cisco router try to ping to target address before issue those addresses
to DHCP client?
I think this command is default configuration.
ip dhcp ping
Therefore, if scenario calls for minimum configuration, we don't really need
that exclude address command.
However, this exclude command will come into play when we want to
specifically restrict IP addresses from DHCP pool.
Anyway, I'm not really sure about that. Anybody please help confirm. Thanks
you.
Cheers,
David
-----Original Message-----
From: john matijevic [mailto:matijevi@bellsouth.net]
Sent: Wednesday, November 03, 2004 5:50 PM
To: 'Grant Stevenson'; 'Cisco Net'; 'Group Study'
Subject: RE: DHCP excluding ip address [Cisco practice lab 4]
Hello Grant,
Basically you want to use the ip dhcp excluded-address, because with
devices that already have static ip addresses, you don't want that same
ip address assigned to another device.
Sincerely,
John Matijevic, CCIE #13254, MCSE, CNE, CCEA
CEO
IgorTek Inc.
151 Crandon Blvd. #402
Key Biscayne, FL 33149
Hablo Espanol
305-321-6232
http://home.bellsouth.net/p/PWP-CCIE
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Grant Stevenson
Sent: Wednesday, November 03, 2004 4:52 AM
To: john matijevic; 'Cisco Net'; 'Group Study'
Subject: RE: DHCP excluding ip address [Cisco practice lab 4]
WHY?
Does not the router test to see if these addresses are already assigned
before issuing addresses?
Or are you configuring this for neatness?
I can only assume that you configure these exclude addresses if the
devices
mentioned are going to
be reserved for future use and have never been on the network before.
Any replies welcome
Regards Grant
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
john matijevic
Sent: 03 November 2004 02:31
To: 'Cisco Net'; 'Group Study'
Subject: RE: DHCP excluding ip address [Cisco practice lab 4]
Hello Team,
I agree, that there should be additional dhcp excluded address:
Ip dhcp excluded address 160.10.22.100 160.10.22.101 for the dns
servers.
Host 160.10.22.253 will provide the database information and according
to the documentation is not excluded in the example, although I haven't
verified this configuration.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122cgcr/
fipr_c/ipcprt1/1cfdhcp.htm#xtocid6
Sincerely,
John Matijevic, CCIE #13254, MCSE, CNE, CCEA
CEO
IgorTek Inc.
151 Crandon Blvd. #402
Key Biscayne, FL 33149
Hablo Espanol
305-321-6232
http://home.bellsouth.net/p/PWP-CCIE
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Cisco Net
Sent: Tuesday, November 02, 2004 3:46 PM
To: Group Study
Subject: DHCP excluding ip address [Cisco practice lab 4]
Hi
On Cisco practice lab 4 DHCP configuration (page 257).
DHCP should be configured with,
-network 160.10.22.0 255.255.255.0
-dns server 160.10.22.100 160.10.22.101
-default-router 160.10.22.3 160.10.22.5
ip dhcp database ftp://user@password@160.10.22.253/route-dhcp
write-delay 240
ip dhcp exlcuded-address 160.10.22.3 160.10.22.6
So with the above solution excluding addresses are
160.10.22.3
160.10.22.4
160.10.22.5
160.10.22.6
Should we also exclude,
-database/ftp server ip addess (160.10.22.253)
-dns-server ip addresses (160.10.22.100 160.10.22.101)
Because we expect those are already there and should not allocate to
new clients ?????????????
Please advice
Thax
Cert
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