help for option ping-check
Julie Xu
J.Xu at uws.edu.au
Thu Jun 27 00:08:06 UTC 2013
Sorry forgot put subject
-----Original Message-----
From: dhcp-users-bounces+j.xu=uws.edu.au at lists.isc.org [mailto:dhcp-users-bounces+j.xu=uws.edu.au at lists.isc.org] On Behalf Of Julie Xu
Sent: Thursday, 27 June 2013 8:21 AM
To: Users of ISC DHCP
Subject:
Hi
I have subnet configuration like:
subnet 10.1.72.0 netmask 255.255.255.0 {
option routers 10.1.72.1;
option broadcast-address 10.1.72.255;
pool {
range 137.154.72.10 10.1.72.19;
}
pool {
range 137.154.72.100 10.1.72.254;
}
}
Host host1 ........fixed-address 10.1.72.88 ......
Currently I have problem, time by time, the dhcp assigned a ip address to the PC use dhcp service, and the ip address is actually existed for some other reasons.
Do some research on web, and I believe I should put "ping-check true;" option in.
Please confirm is it a correct way to fix ip conflict problem?
If so,
1. what will happen if a host with reserve ip (host1, it maybe a printer) required ip address (10.1.72.88) is pingable by reason of itself alive? And what will happened if another machine use the ip and pingable?
2. is the ping-check option can use in subnet? Or even used in pool only?
Any comments will be appreciated
Thanks in advance
Julie
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