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Re: Make a DHCP server using Fedora - Help



Antonio Olivares wrote:
--- On Sun, 11/16/08, Marko Vojinovic <vvmarko panet rs> wrote:

###########################
default-lease-time 21600; #600
max-lease-time 43200;     #7200
ddns-update-style none;
authoritative;

	...snip...

Save, do a "service dhcpd restart" (it should say
OK), then
"tail -f /var/log/messages" and watch what is
going on. Restart the clients (one by one if you wish to examine /var/log/messages after each client, otherwise you may restart them all simultaneously :-)...).

[[ N.B. I suppose you have configured the clients to use
dhcp and not have anything statically assigned... ]]

What should be going on is that the clients in the
classroom ask for IP configuration (dhcp request), then dhcpd replies with the data above (dhcp offer) and then each client accepts this offer. If all goes well, up to this point each client should have a 192.168.0.* IP assigned dynamically, and be able to ping any other client with such address, as well as the server, 192.168.0.1. If this doesn't happen, tell us what does
happen.

	...snip...


I did as you suggested and I still cannot connect the machines to the new server :(

Before even trying to connect, after you reload the dhcpd, do "netstat -ta" and look to see if the server is listening (state LISTEN) on the dhcp port. Also "ifconfig eth1" and "netstat -rn" so we can be sure you did what people intended you to do.

/etc/dhcpd.conf
default-lease-time 21600; #600
max-lease-time 43200;     #7200
ddns-update-style none;
authoritative;

subnet 10.154.19.0 netmask 255.255.255.0 {
} # this means don't do anything with the big network

subnet 192.168.0.0 netmask 255.255.255.0 {
option routers 192.168.0.1;  # your server is the router for classroom
option subnet-mask 255.255.255.0;  # the mask given to classroom
option domain-name-servers 10.154.16.130, 10.128.0.4; # dns servers
range 192.168.0.2 192.168.0.254;  # the pool of addresses for classroom
}


[root localhost ~]# service dhcpd restart
Starting dhcpd:                                            [FAILED]
[root localhost ~]# service dhcpd stop
[root localhost ~]# service dhcpd stop
[root localhost ~]# service dhcpd restart
Starting dhcpd:                                            [  OK  ]
[root localhost ~]#
It starts up but no leases show up, I am trying to ping computer from windows 2000 machine and from another machine running rawhide

tail -f /var/log/messages  show:

Nov 16 18:51:13 localhost ntpd[2004]: kernel time sync status change 4001 Nov 16 18:54:24 localhost dhcpd: DHCPREQUEST for 10.154.19.129 from 00:06:5b:4f:d7:d2 via eth0: unknown lease 10.154.19.129. Nov 16 18:56:32 localhost dhcpd: Internet Systems Consortium DHCP Server 4.0.0 Nov 16 18:56:32 localhost dhcpd: Copyright 2004-2007 Internet Systems Consortium. Nov 16 18:56:32 localhost dhcpd: All rights reserved. Nov 16 18:56:32 localhost dhcpd: For info, please visit http://www.isc.org/sw/dhcp/ Nov 16 18:56:32 localhost dhcpd: Not searching LDAP since ldap-server, ldap-port and ldap-base-dn were not specified in the config file Nov 16 18:56:32 localhost dhcpd: Wrote 0 leases to leases file. Nov 16 18:56:32 localhost dhcpd: Listening on LPF/eth0/00:0e:a6:42:59:af/10.154.19.0/24 Nov 16 18:56:32 localhost dhcpd: Sending on LPF/eth0/00:0e:a6:42:59:af/10.154.19.0/24 Nov 16 18:56:32 localhost dhcpd: Sending on Socket/fallback/fallback-net Nov 16 18:56:40 localhost dhcpd: Internet Systems Consortium DHCP Server 4.0.0 Nov 16 18:56:40 localhost dhcpd: Copyright 2004-2007 Internet Systems Consortium. Nov 16 18:56:40 localhost dhcpd: All rights reserved. Nov 16 18:56:40 localhost dhcpd: For info, please visit http://www.isc.org/sw/dhcp/ Nov 16 18:56:40 localhost dhcpd: Not searching LDAP since ldap-server, ldap-port and ldap-base-dn were not specified in the config file Nov 16 18:56:40 localhost dhcpd: Wrote 0 leases to leases file. Nov 16 18:56:40 localhost dhcpd: Listening on LPF/eth0/00:0e:a6:42:59:af/10.154.19.0/24 Nov 16 18:56:40 localhost dhcpd: Sending on LPF/eth0/00:0e:a6:42:59:af/10.154.19.0/24 Nov 16 18:56:40 localhost dhcpd: Sending on Socket/fallback/fallback-net
Nov 16 19:06:27 localhost dhcpd: DHCPINFORM from 10.154.19.33 via eth0
Nov 16 19:06:27 localhost dhcpd: DHCPACK to 10.154.19.33 (00:0f:1f:86:fc:70) via eth0
Nov 16 19:06:30 localhost dhcpd: DHCPINFORM from 10.154.19.33 via eth0
Nov 16 19:06:30 localhost dhcpd: DHCPACK to 10.154.19.33 (00:0f:1f:86:fc:70) via eth0
Nov 16 19:12:24 localhost dhcpd: DHCPINFORM from 10.154.19.94 via eth0
Nov 16 19:12:24 localhost dhcpd: DHCPACK to 10.154.19.94 (00:40:f4:ea:ee:d3) via eth0
Nov 16 19:12:27 localhost dhcpd: DHCPINFORM from 10.154.19.94 via eth0
Nov 16 19:12:27 localhost dhcpd: DHCPACK to 10.154.19.94 (00:40:f4:ea:ee:d3) via eth0
Nov 16 19:12:57 localhost dhcpd: DHCPINFORM from 10.154.19.227 via eth0
Nov 16 19:12:57 localhost dhcpd: DHCPACK to 10.154.19.227 (00:19:b9:2a:19:37) via eth0
Nov 16 19:13:01 localhost dhcpd: DHCPINFORM from 10.154.19.227 via eth0
Nov 16 19:13:01 localhost dhcpd: DHCPACK to 10.154.19.227 (00:19:b9:2a:19:37) via eth0


Thank you all for helping me.  I appreciate all your help and advice.

Regards,


Antonio



--
Bill Davidsen <davidsen tmr com>
  "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot


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