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Today's Topics:
1. Re: dhcpd.conf logical hierachy (Bob Harold)
2. Re: dhcpd.conf logical hierachy (Narcis Garcia)
3. Log host identifier (Narcis Garcia)
4. Re: Log host identifier (Bill Shirley)
5. Re: dhcpd.conf logical hierachy (Bill Shirley)
----------------------------------------------------------------------
Message: 1
Date: Wed, 18 Oct 2017 15:33:27 -0400
From: Bob Harold <rharo...@umich.edu>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: dhcpd.conf logical hierachy
Message-ID:
<CA+nkc8DAhC-Ja6LPX-zLPZucLj8=e++vfv1goxsbv1v-fqm...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
On Wed, Oct 18, 2017 at 3:19 PM, Narcis Garcia <informat...@actiu.net>
wrote:
> Any way I define the static pool, error messages occur.
>
Maybe there a confusion in the words "static pool"
"pool" and "range" are used to define dynamic ranges.
"fixed-address" defines a static assignment.
> This is the only configuration I've reached without errors when a known
> host connects, but I might not be defining subnet/interface where static
> cases are attached to:
>
> subnet 172.16.0.0 netmask 255.255.0.0 {
> option subnet-mask 255.255.0.0;
> option routers 172.16.20.100;
> option broadcast-address 172.16.255.255;
> option domain-name-servers 172.16.21.61;
> pool {
> # IP range to be assigned dynamically
> range 172.16.20.150 172.16.20.189;
> allow unknown-clients;
> }
> }
> group MyReservations {
>
These four lines are redundant and should be removed:
> option subnet-mask 255.255.0.0;
> option routers 172.16.20.100;
> option broadcast-address 172.16.255.255;
> option domain-name-servers 172.16.21.61;
>
Delete the four lines above.
> host printer_1 {
> hardware ethernet 00:11:22:33:44:55;
> fixed-address 172.16.20.201;
> }
> }
>
>
That looks good. If you need a larger range, just remeber that the dynamic
range and static fixed-addresses should no overlap. So ranges like:
range 172.16.20.190 172.16.20.200;
range 172.16.20.202 172.16.20.255;
As others have said.
--
Bob Harold
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Message: 2
Date: Thu, 19 Oct 2017 08:52:46 +0200
From: Narcis Garcia <informat...@actiu.net>
To: dhcp-users@lists.isc.org
Subject: Re: dhcpd.conf logical hierachy
Message-ID: <7fea7558-b6b8-692f-c8eb-66504be52...@actiu.net>
Content-Type: text/plain; charset=utf-8
How do I explicitly link the group MyReservations to that subnet and its
options?
What if some day I want to setup other subnets and other fixed hosts?
El 18/10/17 a les 21:33, Bob Harold ha escrit:
>
> On Wed, Oct 18, 2017 at 3:19 PM, Narcis Garcia <informat...@actiu.net
> <mailto:informat...@actiu.net>> wrote:
>
> Any way I define the static pool, error messages occur.
>
>
> Maybe there a confusion in the words "static pool"
> "pool" and "range" are used to define dynamic ranges.
> "fixed-address" defines a static assignment.
> ?
>
> This is the only configuration I've reached without errors when a known
> host connects, but I might not be defining subnet/interface where static
> cases are attached to:
>
> subnet 172.16.0.0 netmask 255.255.0.0 {
> ? ? ? ? option subnet-mask 255.255.0.0;
> ? ? ? ? option routers 172.16.20.100;
> ? ? ? ? option broadcast-address 172.16.255.255;
> ? ? ? ? option domain-name-servers 172.16.21.61;
> ? ? ? ? pool {
> ? ? ? ? ? ? ? ? # IP range to be assigned dynamically
> ? ? ? ? ? ? ? ? range 172.16.20.150 172.16.20.189;
> ? ? ? ? ? ? ? ? allow unknown-clients;
> ? ? ? ? }
> }
> group MyReservations {
>
>
> These four lines are redundant and should be removed:?
>
> ? ? ? ? option subnet-mask 255.255.0.0;
> ? ? ? ? option routers 172.16.20.100;
> ? ? ? ? option broadcast-address 172.16.255.255;
> ? ? ? ? option domain-name-servers 172.16.21.61;
>
> Delete the four lines above.
> ?
>
> ? ? ? ? host printer_1 {
> ? ? ? ? ? ? ? ? hardware ethernet 00:11:22:33:44:55;
> ? ? ? ? ? ? ? ? fixed-address 172.16.20.201;
> ? ? ? ? }
> }
>
>
> That looks good.? If you need a larger range, just remeber that the
> dynamic range and static fixed-addresses should no overlap.? So ranges like:
> ? ? range 172.16.20.190 172.16.20.200;
> ? ? range 172.16.20.202 172.16.20.255;
>
> As others have said.
>
> --?
> Bob Harold
>
>
>
> _______________________________________________
> dhcp-users mailing list
> dhcp-users@lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users
>
------------------------------
Message: 3
Date: Thu, 19 Oct 2017 09:00:39 +0200
From: Narcis Garcia <informat...@actiu.net>
To: dhcp-users@lists.isc.org
Subject: Log host identifier
Message-ID: <46e6c16a-695b-8cb7-ccaf-468a85db5...@actiu.net>
Content-Type: text/plain; charset=utf-8
isc-dhcp-server is currently logging in my system:
DHCPDISCOVER from 11:22:33:44:55:66 via eth0
DHCPOFFER on 172.16.20.201 to 11:22:33:44:55:66 via eth0
DHCPREQUEST for 172.16.20.201 from 11:22:33:44:55:66 via eth0
DHCPACK on 172.16.20.201 to 11:22:33:44:55:66 via eth0
How can I make the service logs some name about that known client? (such
as "printer_1")
Thanks.
------------------------------
Message: 4
Date: Thu, 19 Oct 2017 03:12:15 -0400
From: Bill Shirley <b...@c3po.polymerindustries.biz>
To: dhcp-users@lists.isc.org
Subject: Re: Log host identifier
Message-ID:
<0764c6be-8eba-5b04-3cf8-7667557d2...@c3po.polymerindustries.biz>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Add logging to your dhcpd.conf.? Here is what I use:
on commit {
??? if static {
??? ??? set is-static = " --> STATIC";
??? ??? option dhcp-renewal-time??? = encode-int(43200 / 2, 32);??? # 43200 =
12 hours
??? ??? option dhcp-rebinding-time??? = encode-int(43200 * 7 / 8, 32);
??? ??? ddns-ttl??? ??? ??? = encode-int((43200 / 2) + 1, 32);
??? } else {
??? ??? set is-static = "";
??? ??? option dhcp-renewal-time??? = encode-int(lease-time / 2, 32);
??? ??? option dhcp-rebinding-time??? = encode-int(lease-time * 7 / 8, 32);
??? ??? ddns-ttl??? ??? ??? = encode-int((lease-time / 2) + 1, 32);
??? }
??? log (?? info,
??? ??? concat (
??? ??? ??? "Host:", pick-first-value(option fqdn.hostname, option host-name,
"(none)"), "=>", pick-first-value(config-option
server.ddns-hostname, "(none)")
??? ??? ??? ,"? VendorId:", pick-first-value(option vendor-class-identifier,
"(none)")
??? ??? ??? ,"? Lease:",
pick-first-value(binary-to-ascii(10,32,"",encode-int(lease-time,32)), "(none)")
??? ??? ??? ,"? Renewal:", pick-first-value(binary-to-ascii(10, 32, "",
config-option dhcp-renewal-time), "(none)")
??? ??? ??? ,"? Rebind:", pick-first-value(binary-to-ascii(10, 32, "",
config-option dhcp-rebinding-time), "(none)")
??? ??? ??? ,"? TTL:", pick-first-value(binary-to-ascii(10, 32, "",
config-option server.ddns-ttl), "(none)")
??? ??? ??? ,"? GIaddr:", pick-first-value(binary-to-ascii(10, 8, ".",
packet(24,4)), "(none)")
??? ??? ??? , is-static
??? ??? )
??? );
}
Bill
On 10/19/2017 3:00 AM, Narcis Garcia wrote:
> isc-dhcp-server is currently logging in my system:
> DHCPDISCOVER from 11:22:33:44:55:66 via eth0
> DHCPOFFER on 172.16.20.201 to 11:22:33:44:55:66 via eth0
> DHCPREQUEST for 172.16.20.201 from 11:22:33:44:55:66 via eth0
> DHCPACK on 172.16.20.201 to 11:22:33:44:55:66 via eth0
>
> How can I make the service logs some name about that known client? (such
> as "printer_1")
>
> Thanks.
> _______________________________________________
> dhcp-users mailing list
> dhcp-users@lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users
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------------------------------
Message: 5
Date: Thu, 19 Oct 2017 03:19:23 -0400
From: Bill Shirley <b...@c3po.polymerindustries.biz>
To: dhcp-users@lists.isc.org
Subject: Re: dhcpd.conf logical hierachy
Message-ID:
<af9acb99-6e7c-4d6c-18a6-f4e42b2c4...@c3po.polymerindustries.biz>
Content-Type: text/plain; charset=utf-8; format=flowed
Why do you think you need to link the group to the subnet?? The fixed-address
of printer-1 ties it to the subnet.
For your 2nd question, add the subnets and hosts to dhcpd.conf. What problem
are you thinking about?
Bill
On 10/19/2017 2:52 AM, Narcis Garcia wrote:
> How do I explicitly link the group MyReservations to that subnet and its
> options?
> What if some day I want to setup other subnets and other fixed hosts?
>
>
> El 18/10/17 a les 21:33, Bob Harold ha escrit:
>> On Wed, Oct 18, 2017 at 3:19 PM, Narcis Garcia <informat...@actiu.net
>> <mailto:informat...@actiu.net>> wrote:
>>
>> Any way I define the static pool, error messages occur.
>>
>>
>> Maybe there a confusion in the words "static pool"
>> "pool" and "range" are used to define dynamic ranges.
>> "fixed-address" defines a static assignment.
>>
>>
>> This is the only configuration I've reached without errors when a known
>> host connects, but I might not be defining subnet/interface where static
>> cases are attached to:
>>
>> subnet 172.16.0.0 netmask 255.255.0.0 {
>> ? ? ? ? option subnet-mask 255.255.0.0;
>> ? ? ? ? option routers 172.16.20.100;
>> ? ? ? ? option broadcast-address 172.16.255.255;
>> ? ? ? ? option domain-name-servers 172.16.21.61;
>> ? ? ? ? pool {
>> ? ? ? ? ? ? ? ? # IP range to be assigned dynamically
>> ? ? ? ? ? ? ? ? range 172.16.20.150 172.16.20.189;
>> ? ? ? ? ? ? ? ? allow unknown-clients;
>> ? ? ? ? }
>> }
>> group MyReservations {
>>
>>
>> These four lines are redundant and should be removed:
>>
>> ? ? ? ? option subnet-mask 255.255.0.0;
>> ? ? ? ? option routers 172.16.20.100;
>> ? ? ? ? option broadcast-address 172.16.255.255;
>> ? ? ? ? option domain-name-servers 172.16.21.61;
>>
>> Delete the four lines above.
>>
>>
>> ? ? ? ? host printer_1 {
>> ? ? ? ? ? ? ? ? hardware ethernet 00:11:22:33:44:55;
>> ? ? ? ? ? ? ? ? fixed-address 172.16.20.201;
>> ? ? ? ? }
>> }
>>
>>
>> That looks good.? If you need a larger range, just remeber that the
>> dynamic range and static fixed-addresses should no overlap.? So ranges like:
>> ? ? range 172.16.20.190 172.16.20.200;
>> ? ? range 172.16.20.202 172.16.20.255;
>>
>> As others have said.
>>
>> --
>> Bob Harold
>>
>>
>>
>> _______________________________________________
>> dhcp-users mailing list
>> dhcp-users@lists.isc.org
>> https://lists.isc.org/mailman/listinfo/dhcp-users
>>
> _______________________________________________
> dhcp-users mailing list
> dhcp-users@lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users
------------------------------
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