dhcpd related issue - not giving up

Sun Nov 1 12:39:15 UTC 2009

2009/11/1 Dánielisz László <laszlo_danielisz at yahoo.com>

> Well, it says:
>
> rl1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0
> mtu 1500
>     options=8<VLAN_MTU>
>     ether 00:13:8f:86:2f:64
>     inet 192.168.1.1 netmask 0xffffff00 broadcast 192.168.1.255
>     media: Ethernet autoselect (100baseTX <full-duplex>)
>     status: active
>
> ------------------------------
> *From:* krad <kraduk at googlemail.com>
>
> *To:* Dánielisz László <laszlo_danielisz at yahoo.com>
> *Cc:* freebsd-questions at freebsd.org
> *Sent:* Sun, November 1, 2009 12:09:30 PM
> *Subject:* Re: dhcpd related issue - not giving up
>
>
>
> 2009/11/1 Dánielisz László <laszlo_danielisz at yahoo.com>
>
>> I don't give it up, doing some tcpdump on my BSD I can see the dhcp
>> request reaches the machine, the dhcpd is running, but why doesn't gives any
>> IP?
>>
>> # tcpdump -i rl1 -n port 67 or port 68
>> tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
>> listening on rl1, link-type EN10MB (Ethernet), capture size 96 bytes
>> 11:51:43.086597 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
>> from 00:24:03:f1:bd:36, length 300
>> 11:51:45.102260 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
>> from 00:24:03:f1:bd:36, length 300
>> 11:51:49.114960 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
>> from 00:24:03:f1:bd:36, length 300
>> 11:51:57.150734 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
>> from 00:24:03:f1:bd:36, length 300
>> 11:51:59.157311 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
>> from 00:24:03:f1:bd:36, length 300
>> 11:52:03.160029 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
>> from 00:24:03:f1:bd:36, length 300
>> 11:57:09.770520 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
>> from 00:23:6c:86:41:d9, length 300
>> 11:57:11.941379 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
>> from 00:23:6c:86:41:d9, length 300
>> 11:57:14.928398 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
>> from 00:23:6c:86:41:d9, length 300
>> 11:57:16.378911 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
>> from 00:23:6c:86:41:d9, length 300
>> 11:57:17.703219 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
>> from 00:23:6c:86:41:d9, length 300
>> 11:57:18.839763 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request
>> from 00:23:6c:86:41:d9, length 300
>>
>>
>>
>>
>>
>>
>> ________________________________
>> From: Dánielisz László <laszlo_danielisz at yahoo.com>
>> To: freebsd-questions at freebsd.org
>> Sent: Sun, November 1, 2009 11:06:36 AM
>> Subject: Re: dhcpd related issue
>>
>> I had one more idea: try nmap on my dhcp server, and port 67 does not
>> seems to be opened, after I tried telneting in and my connection was
>> refused:
>>
>> $ telnet 192.168.1.1 67
>> Trying 192.168.1.1...
>> telnet: connect to address 192.168.1.1: Connection refused
>> telnet: Unable to connect to remote host
>>
>> Than I disabled pf
>> # pfctl -d
>> No ALTQ support in kernel
>> ALTQ related functions disabled
>> pf disabled
>>
>> Than I checked telnet/nmap again but still don't found any 67 port ever
>> there. I checked again that the dhcpd is running, and its up:
>> # ps ax|grep dhcp
>>  958  ??  Is     0:00.00 /usr/local/sbin/dhcpd -cf
>> /usr/local/etc/dhcpd.conf -lf /var/db/dhcpd/dhcpd.lease
>>
>> Any idea?
>>
>>
>>
>>
>> ________________________________
>> From: Dánielisz László <laszlo_danielisz at yahoo.com>
>> To: patrick <gibblertron at gmail.com>
>> Cc: freebsd-questions at freebsd.org
>> Sent: Sun, November 1, 2009 8:34:03 AM
>> Subject: Re: dhcpd related issue
>>
>> It's the same, I still don't got any IP address.
>>
>>
>>
>>
>> ________________________________
>> From: patrick <gibblertron at gmail.com>
>> To: Dánielisz László <laszlo_danielisz at yahoo.com>
>> Cc: freebsd-questions at freebsd.org
>> Sent: Sun, November 1, 2009 6:38:31 AM
>> Subject: Re: dhcpd related issue
>>
>> What happens if you disable pf temporarily?
>>
>> 2009/10/31 Dánielisz László <laszlo_danielisz at yahoo.com>:
>> > Hello,
>> >
>> > I just configured my dhcpd but it gives no IP-s.
>> > What had I done until now:
>> >
>> >  1. Installed isc-dhcp via ports
>> >
>> > 2. edited the /usr/local/etc/dhcpd.conf
>> >
>> > option domain-name "bsd";
>> > option domain-name-servers <my dns server ip>;
>> > option subnet-mask 255.255.255.0;
>> > authoritative;
>> >
>> > default-lease-time 3600;
>> > max-lease-time 86400;
>> > ddns-update-style none;
>> >
>> > subnet 192.168.1.0 netmask 255.255.255.0 {
>> > range 192.168.1.129 192.168.1.250;
>> > option routers 192.168.1.1;
>> > }
>> >
>> > 3. Added the following ones to /etc/rc.conf
>> > ifconfig_rl1="inet 192.168.1.1  netmask 255.255.255.0"
>> > dhcpd_enable="YES"
>> > dhcpd_conf="/usr/local/etc/dhcpd.conf"
>> > dhcpd_ifaces="rl1"
>> >
>> >
>> > 4. Opened the adequate port in pf
>> > pass in log on rl1 inet proto tcp from 192.168.1.0/24 to 192.168.1.1
>> port = bootps flags S/SA keep state
>> > pass in log on rl1 inet proto udp from 192.168.1.0/24 to 192.168.1.1
>> port = bootps keep state
>> >
>> > 5.. When I start de daemon:
>> > # /usr/local/etc/rc.d/isc-dhcpd start
>> > Starting dhcpd.
>> > Internet Systems Consortium DHCP Server V3.0.7
>> > Copyright 2004-2008 Internet Systems Consortium.
>> > All rights reserved.
>> > For info, please visit http://www.isc.org/sw/dhcp/
>> > Wrote 0 leases to leases file.
>> > Listening on Socket/rl1/192.168.1/24
>> > Sending on   Socket/rl1/192.168.1/24
>> >
>> > Everythings looks to be ok there but on the client (I tried OS-X and
>> Nokia symbian) I can not obtain the IP address, do you have any idea what
>> should I check?
>> >
>> >
>> > Thanks!
>> > Laci
>> >
>> >
>> >
>> > _______________________________________________
>> > freebsd-questions at freebsd.org mailing list
>> > http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>> > To unsubscribe, send any mail to "
>> freebsd-questions-unsubscribe at freebsd.org"
>> >
>> _______________________________________________
>> freebsd-questions at freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>> To unsubscribe, send any mail to "
>> freebsd-questions-unsubscribe at freebsd.org"
>>
>>
>>
>>
>> _______________________________________________
>> freebsd-questions at freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>> To unsubscribe, send any mail to "
>> freebsd-questions-unsubscribe at freebsd.org"
>>
>>
>>
>>
>> _______________________________________________
>> freebsd-questions at freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>> To unsubscribe, send any mail to "
>> freebsd-questions-unsubscribe at freebsd.org"
>>
>>
>>
>>
>> _______________________________________________
>> freebsd-questions at freebsd.org mailing list
>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions
>> To unsubscribe, send any mail to "
>> freebsd-questions-unsubscribe at freebsd.org"
>>
>
> start with the silly stuff what does ifconfig say for that interface
>
>

looks good are you using a managed or unmanaged switch . If its managed
check the settings on it, VLANs, and whether it is forwarding broadcasts etc