Re: dhcp server with 2 interfaces and 2 different subnets
Hello,
Your current /etc/dhcpd.conf configuration will not work no matter how hard you
test it
. Hint? You should not create a shared-network amongst two different ip blocks
and
rather instead allocate a specific subnet per ip blocks. Trust me, this will
work
because I been there done that.
Demuel
Hi,
I am trying to setup a DHCP server on a multi-homed firewall. One of the
interfaces is vr0 and should supply addresses 172.16.255.x/24. The other
is sk0 and should supply 200.232.140.x/24.
My /etc/dhcpd.interfaces looks like
sk0
vr0
My /etc/dhcpd.conf looks like
shared-network LOCAL-NET {
option domain-name-servers 200.232.140.1;
subnet 200.232.140.0 netmask 255.255.255.0 {
option routers 200.232.140.1;
range 200.232.140.20 200.232.140.200;
}
subnet 172.16.255.0 netmask 255.255.255.0 {
option routers 172.16.255.1;
range 172.16.255.20 172.16.255.200;
}
}
Now how can I tell the dhcp server to only allocate 172.16.255
addresses to vr0 and 200.232.140.0 to sk0?
Thank you very much.
Jeff
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Re: dhcp server with 2 interfaces and 2 different subnets
The following:
$ sudo tcpdump -i vr0 port bootpc || port bootps tcpdump -i sk0 port
bootpc || port bootps
$ sudo dhcpd -vf
$ sudo netstat -tan|egrep -i 67|68
~BAS
On Tue, 12 Jun 2007, Jeff Santos wrote:
Hi,
I am trying to setup a DHCP server on a multi-homed firewall. One of the
interfaces is vr0 and should supply addresses 172.16.255.x/24. The other
is sk0 and should supply 200.232.140.x/24.
My /etc/dhcpd.interfaces looks like
sk0
vr0
My /etc/dhcpd.conf looks like
shared-network LOCAL-NET {
option domain-name-servers 200.232.140.1;
subnet 200.232.140.0 netmask 255.255.255.0 {
option routers 200.232.140.1;
range 200.232.140.20 200.232.140.200;
}
subnet 172.16.255.0 netmask 255.255.255.0 {
option routers 172.16.255.1;
range 172.16.255.20 172.16.255.200;
}
}
Now how can I tell the dhcp server to only allocate 172.16.255
addresses to vr0 and 200.232.140.0 to sk0?
Thank you very much.
Jeff
--
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l8*
-lava (Brian A. Seklecki - Pittsburgh, PA, USA)
http://www.spiritual-machines.org/
Guilty? Yeah. But he knows it. I mean, you're guilty.
You just don't know it. So who's really in jail?
~Maynard James Keenan
Re: dhcp server with 2 interfaces and 2 different subnets
#/etc/dhcpd.conf
option domain-name-servers 200.232.140.1;
subnet 200.232.140.0 netmask 255.255.255.0 {
option routers 200.232.140.1;
range 200.232.140.20 200.232.140.200;
}
subnet 172.16.255.0 netmask 255.255.255.0 {
option routers 172.16.255.1;
range 172.16.255.20 172.16.255.200;
}
Re: dhcp server with 2 interfaces and 2 different subnets
Hi,
Thank you.
Although I did not understand your recommendation.
My problem is that for some reason, DHCP server is allocating IP
addresses from the subnet 200.232.140.0 for stations in the
172.16.255.0 segment. I would like to control which addresses
should be given to each segment.
Regards,
Jeff.
- Original Message -
From: Brian A. Seklecki
To: Jeff Santos
Subject: Re: dhcp server with 2 interfaces and 2 different subnets
Date: Tue, 12 Jun 2007 16:25:24 -0400 (EDT)
The following:
$ sudo tcpdump -i vr0 port bootpc || port bootps tcpdump -i
sk0 port bootpc || port bootps
$ sudo dhcpd -vf
$ sudo netstat -tan|egrep -i 67|68
~BAS
On Tue, 12 Jun 2007, Jeff Santos wrote:
Hi,
I am trying to setup a DHCP server on a multi-homed firewall. One of the
interfaces is vr0 and should supply addresses 172.16.255.x/24. The other
is sk0 and should supply 200.232.140.x/24.
My /etc/dhcpd.interfaces looks like
sk0
vr0
My /etc/dhcpd.conf looks like
shared-network LOCAL-NET {
option domain-name-servers 200.232.140.1;
subnet 200.232.140.0 netmask 255.255.255.0 {
option routers 200.232.140.1;
range 200.232.140.20 200.232.140.200;
}
subnet 172.16.255.0 netmask 255.255.255.0 {
option routers 172.16.255.1;
range 172.16.255.20 172.16.255.200;
}
}
Now how can I tell the dhcp server to only allocate 172.16.255
addresses to vr0 and 200.232.140.0 to sk0?
Thank you very much.
Jeff
--
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l8*
-lava (Brian A. Seklecki - Pittsburgh, PA, USA)
http://www.spiritual-machines.org/
Guilty? Yeah. But he knows it. I mean, you're guilty.
You just don't know it. So who's really in jail?
~Maynard James Keenan
--
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Choose From 100+ Personalized Domains
Visit http://www.mail.com today
Re: dhcp server with 2 interfaces and 2 different subnets
Jeff Santos [EMAIL PROTECTED] writes: Now how can I tell the dhcp server to only allocate 172.16.255 addresses to vr0 and 200.232.140.0 to sk0? The two ranges are not subnets of a larger net you control. Put them in separate 'shared-network' definitions and see if that doesn't get you what you want. -- Peter N. M. Hansteen, member of the first RFC 1149 implementation team http://www.blug.linux.no/rfc1149/ http://www.datadok.no/ http://www.nuug.no/ First, we kill all the spammers The Usenet Bard, Twice-forwarded tales delilah spamd[29949]: 85.152.224.147: disconnected after 42673 seconds.
Re: dhcp server with 2 interfaces and 2 different subnets
On 2007/06/12 16:41, Jeff Santos wrote:
My problem is that for some reason, DHCP server is allocating IP
addresses from the subnet 200.232.140.0 for stations in the
172.16.255.0 segment. I would like to control which addresses
should be given to each segment.
Well, describing the problem is a good start and was missing from
your first message...
shared-network LOCAL-NET {
This is only needed in rare cases as described in dhcpd.conf(5),
try removing it and restarting dhcpd.
If this doesn't help, please send ifconfig -A (and if any bridges
are configured, also brconfig -A).
