dhcpstatus output is right?
GUILLERMO ALVAREZ
guillermo.alvarez at ehu.es
Wed Nov 9 16:24:56 UTC 2011
Hello !
I'm trying to resolve a DHCP problem about a big pool balanced between two servers.
Sometimes there are too many clients and the pool is not big enough (clients have to wait for an IP address several minutes!) , furthermore we can found those logs:
Nov 9 11:37:11 lgux06 dhcpd: pool 997e798 wguest-bizkaia total 967 free 2 backup 2 lts 0
Nov 9 11:37:27 lgux06 dhcpd: pool 997e798 wguest-bizkaia total 967 free 2 backup 2 lts 0
[Only 4 IP free (2 me + 2 otherserver )]
Otherwise , we parse the output of dhcpstatus perl script at the same time (aprox) and we get:
Subnet: 10.227.92.0 :Netmask: 255.255.252.0 :IP range: 10.227.92.1 - 10.227.95.254 :IPs defined: 965 :IPs used: 704 :IPs free: 263
Subnet: 10.227.92.0 :Netmask: 255.255.252.0 :IP range: 10.227.92.1 - 10.227.95.254 :IPs defined: 965 :IPs used: 711 :IPs free: 256
[More than 250 IP free]
I thought dhcpstatus gave me right info, but It seems that's not correct... or the balance is not working?
How can I know the real use of the pool?
Do you use dhcpstatus script?
Thanks in advance,
Guiller
Network definition in dhcpd.conf
==
shared-network "wguest-bizkaia" {
ddns-updates off ;
option domain-name-servers 10.10.13.6, 10.20.13.6, 10.30.13.6 ;
# bizkaia-wguest-privada-10-227-92-0
subnet 10.227.92.0 netmask 255.255.252.0 {
option routers 10.227.92.1;
option broadcast-address 10.227.95.255 ;
option subnet-mask 255.255.252.0 ;
}
# dynamic IP pools
pool { # pool-10-227-92-50
default-lease-time 900;
max-lease-time 900;
deny dynamic bootp clients;
failover peer "bizkaia-gipuzkoa";
range 10.227.92.50 10.227.92.254;
range 10.227.93.1 10.227.93.254;
range 10.227.94.1 10.227.94.254;
range 10.227.95.1 10.227.95.254;
}
}
==
OS and package version
RH 4 .6
Name : dhcp Version : 3.0.1 Vendor: Red Hat, Inc.
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