Date: Sun, 1 Nov 2009 04:14:38 -0800 (PST) From: =?iso-8859-1?Q?D=E1nielisz_L=E1szl=F3?= <laszlo_danielisz@yahoo.com> To: =?iso-8859-1?Q?Trond_Endrest=F8l?= <Trond.Endrestol@fagskolen.gjovik.no> Cc: freebsd-questions@freebsd.org Subject: Re: dhcpd related issue Message-ID: <905594.22832.qm@web30802.mail.mud.yahoo.com> In-Reply-To: <alpine.BSF.2.00.0911011237510.44239@mail.fig.ol.no> References: <82804.79685.qm@web30804.mail.mud.yahoo.com> <b043a4850910312238p79e05049ka3ce74f8f44307ed@mail.gmail.com> <516971.12872.qm@web30807.mail.mud.yahoo.com> <806321.83601.qm@web30807.mail.mud.yahoo.com> <alpine.BSF.2.00.0911011212190.44239@mail.fig.ol.no> <alpine.BSF.2.00.0911011237510.44239@mail.fig.ol.no>
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Thank you Trond! =0ATrue and I'll implement this to my pf.conf just first I=
want to make work this dhcpd :-)=0A=0A=0A=0A=0A___________________________=
_____=0AFrom: Trond Endrest=F8l <Trond.Endrestol@fagskolen.gjovik.no>=0ATo:=
D=E1nielisz L=E1szl=F3 <laszlo_danielisz@yahoo.com>=0ACc: freebsd-question=
s@freebsd.org=0ASent: Sun, November 1, 2009 12:48:45 PM=0ASubject: Re: dhcp=
d related issue=0A=0A-----BEGIN PGP SIGNED MESSAGE-----=0AHash: SHA1=0A=0AO=
n Sun, 1 Nov 2009 12:30+0100, Trond Endrest=F8l wrote:=0A=0A> On Sun, 1 Nov=
2009 02:06-0800, D=E1nielisz L=E1szl=F3 wrote:=0A> =0A> > I had one more i=
dea: try nmap on my dhcp server, and port 67 does =0A> > not seems to be op=
ened, after I tried telneting in and my connection =0A> > was refused:=0A> =
> =0A> > $ telnet 192.168.1.1 67=0A> > Trying 192.168.1.1...=0A> > telnet: =
connect to address 192.168.1.1: Connection refused=0A> > telnet: Unable to =
connect to remote host=0A> =0A> DHCP uses UDP, telnet uses TCP, no wonder y=
ou're getting refused.=0A> =0A> Do you have bpf (Berkeley packet filter) co=
mpiled in the kernel?=0A> dhcpd relies on bpf. Just a thought, although dhc=
pd would probably =0A> shut down if bpf is unavailable.=0A> =0A> As others =
have suggested, please post the output from ifconfig rl1, =0A> and from net=
stat -rnf inet.=0A> =0A> > Than I disabled pf=0A> > # pfctl -d=0A> > No ALT=
Q support in kernel=0A> > ALTQ related functions disabled=0A> > pf disabled=
=0A> =0A> Just another (silly) thought, does your pf setup allow UDP from =
=0A> 192.168.1.1:67 to *:68 over the rl1 interface?=0A=0AInitially the DHCP=
client uses 0.0.0.0 as its IP address and =0Abroadcasts the DHCP requests =
to 255.255.255.255. I know you have =0Adisabled pf, but you should later al=
low the clients and dhcpd to send =0ADHCP messages using the above addresse=
s, i.e. dhcpd will broadcast =0Aback the offerings using its own IP-address=
as source (192.168.1.1 in =0Ayour case) and the broadcast address 255.255.=
255.255 as destination. =0AYou should probably also allow for the use of 19=
2.168.1.255 as =0Abroadcast address in your pf setup with respect to DHCP m=
essages.=0A=0A=0AMore ranting on my part,=0ATrond.=0A=0A> > Than I checked =
telnet/nmap again but still don't found any 67 port =0A> > ever there. I ch=
ecked again that the dhcpd is running, and its up:=0A> >=0A> > # ps ax|grep=
dhcp=0A> > 958 ?? Is 0:00.00 /usr/local/sbin/dhcpd -cf /usr/local/=
etc/dhcpd.conf -lf /var/db/dhcpd/dhcpd.lease=0A> > =0A> > Any idea?=0A> =0A=
> Did you restart dhcpd?=0A> What's the output from fstat with respect to d=
hcpd?=0A> =0A> The output should be something resembling:=0A> =0A> dhcpd =
dhcpd 18990 root / 2 drwxr-xr-x 1024 r=0A> dhcpd d=
hcpd 18990 wd / 6 drwxr-xr-x 1024 r=0A> dhcpd dhc=
pd 18990 text /usr 10505569 -rwxr-xr-x 595924 r=0A> dhcpd dhc=
pd 18990 0 /dev 14 crw-rw-rw- null rw=0A> dhcpd dhcpd=
18990 1 /dev 14 crw-rw-rw- null rw=0A> dhcpd dhcpd =
18990 2 /dev 14 crw-rw-rw- null rw=0A> dhcpd dhcpd =
18990 3* local dgram c32224b4 <-> c32228bc=0A> dhcpd dhcpd 189=
90 4* internet raw icmp c32d8b2c=0A> dhcpd dhcpd 18990 5* int=
ernet dgram udp c3173974=0A> dhcpd dhcpd 18990 6 /var 70999=
-rw-r--r-- 93335 w=0A> dhcpd dhcpd 18990 7 /dev 7 c=
rw------- bpf rw=0A> =0A> If you happen to have lsof installed, it shou=
ld yield something like =0A> this:=0A> =0A> dhcpd 18990 1 dhcpd cw=
d VDIR 0,98 1024 6 /root=0A> dhcpd 18990 1 dhc=
pd rtd VDIR 0,98 1024 2 /=0A> dhcpd 18990 1 d=
hcpd txt VREG 0,106 595924 10505569 /usr/local/sbin/dhcpd=0A> d=
hcpd 18990 1 dhcpd txt VREG 0,98 220136 26684 /libe=
xec/ld-elf.so.1=0A> dhcpd 18990 1 dhcpd txt VREG 0,98 1=
143792 1327 /lib/libc.so.7=0A> dhcpd 18990 1 dhcpd 0u VCHR =
0,14 0t0 14 /dev/null=0A> dhcpd 18990 1 dhcpd =
1u VCHR 0,14 0t0 14 /dev/null=0A> dhcpd 18990 =
1 dhcpd 2u VCHR 0,14 0t0 14 /dev/null=0A> dhcpd =
18990 1 dhcpd 3u unix 0xc31719a8 0t0 ->0xc3171b44 (=
QR=3D0 QS=3D0 SO=3DPQLEN=3D0,QLEN=3D0,QLIM=3D0,RCVBUF=3D32768,SNDBUF=3D1638=
4 SS=3DISCONNECTED)=0A> dhcpd 18990 1 dhcpd 4u IPv4 0xc32d8b2c =
0t0 ICMP *:* (QR=3D0 QS=3D0 SO=3DPQLEN=3D0,QLEN=3D0,QLIM=3D0,RCV=
BUF=3D73728,SNDBUF=3D73728)=0A> dhcpd 18990 1 dhcpd 5u IPv4 0xc=
3175060 0t0 UDP *:bootps (QR=3D0 QS=3D0 SO=3DPQLEN=3D0,QLEN=3D0=
,QLIM=3D0,RCVBUF=3D262144,REUSEADDR,SNDBUF=3D73728)=0A> dhcpd 18990 =
1 dhcpd 6w VREG 0,104 94061 70999 /var (/dev/ufs/var)=0A>=
dhcpd 18990 1 dhcpd 7u VCHR 0,7 0t26744985 7 /de=
v/bpf=0A> =0A> =0A> HTH,=0A> Trond.=0A> =0A> > ____________________________=
____=0A> > From: D=E1nielisz L=E1szl=F3 <laszlo_danielisz@yahoo.com>=0A> > =
To: patrick <gibblertron@gmail.com>=0A> > Cc: freebsd-questions@freebsd.org=
=0A> > Sent: Sun, November 1, 2009 8:34:03 AM=0A> > Subject: Re: dhcpd rela=
ted issue=0A> > =0A> > It's the same, I still don't got any IP address.=0A>=
> =0A> > =0A> > =0A> > =0A> > ________________________________=0A> > From:=
patrick <gibblertron@gmail.com>=0A> > To: D=E1nielisz L=E1szl=F3 <laszlo_d=
anielisz@yahoo.com>=0A> > Cc: freebsd-questions@freebsd.org=0A> > Sent: Sun=
, November 1, 2009 6:38:31 AM=0A> > Subject: Re: dhcpd related issue=0A> > =
=0A> > What happens if you disable pf temporarily?=0A> > =0A> > 2009/10/31 =
D=E1nielisz L=E1szl=F3 <laszlo_danielisz@yahoo.com>:=0A> > > Hello,=0A> > >=
=0A> > > I just configured my dhcpd but it gives no IP-s.=0A> > > What had =
I done until now:=0A> > >=0A> > > 1. Installed isc-dhcp via ports=0A> > >=
=0A> > > 2. edited the /usr/local/etc/dhcpd.conf=0A> > >=0A> > > option dom=
ain-name "bsd";=0A> > > option domain-name-servers <my dns server ip>;=0A> =
> > option subnet-mask 255.255.255.0;=0A> > > authoritative;=0A> > >=0A> > =
> default-lease-time 3600;=0A> > > max-lease-time 86400;=0A> > > ddns-updat=
e-style none;=0A> > >=0A> > > subnet 192.168.1.0 netmask 255.255.255.0 {=0A=
> > > range 192.168.1.129 192.168.1.250;=0A> > > option routers 192.168.1.1=
;=0A> > > }=0A> > >=0A> > > 3. Added the following ones to /etc/rc.conf=0A>=
> > ifconfig_rl1=3D"inet 192.168.1.1 netmask 255.255.255.0"=0A> > > dhcpd=
_enable=3D"YES"=0A> > > dhcpd_conf=3D"/usr/local/etc/dhcpd.conf"=0A> > > dh=
cpd_ifaces=3D"rl1"=0A> > >=0A> > >=0A> > > 4. Opened the adequate port in p=
f=0A> > > pass in log on rl1 inet proto tcp from 192.168.1.0/24 to 192.168.=
1.1 port =3D bootps flags S/SA keep state=0A> > > pass in log on rl1 inet p=
roto udp from 192.168.1.0/24 to 192.168.1.1 port =3D bootps keep state=0A> =
> >=0A> > > 5.. When I start de daemon:=0A> > > # /usr/local/etc/rc.d/isc-d=
hcpd start=0A> > > Starting dhcpd.=0A> > > Internet Systems Consortium DHCP=
Server V3.0.7=0A> > > Copyright 2004-2008 Internet Systems Consortium.=0A>=
> > All rights reserved.=0A> > > For info, please visit http://www.isc.org=
/sw/dhcp/=0A> > > Wrote 0 leases to leases file.=0A> > > Listening on Socke=
t/rl1/192.168.1/24=0A> > > Sending on Socket/rl1/192.168.1/24=0A> > >=0A>=
> > Everythings looks to be ok there but on the client (I tried OS-X and N=
okia symbian) I can not obtain the IP address, do you have any idea what sh=
ould I check?=0A> > >=0A> > >=0A> > > Thanks!=0A> > > Laci=0A=0A- -- =0A- -=
---------------------------------------------------------------------=0ATro=
nd Endrest=F8l | Trond.Endrestol@fagskolen.gjovik.no=0AACM=
, NAS, NUUG, SAGE, USENIX | FreeBSD 7.2-STABLE & Alpine 2.00=0A=0A--=
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