Send dhcp-users mailing list submissions to
dhcp-users@lists.isc.org
To subscribe or unsubscribe via the World Wide Web, visit
https://lists.isc.org/mailman/listinfo/dhcp-users
or, via email, send a message with subject or body 'help' to
dhcp-users-requ...@lists.isc.org
You can reach the person managing the list at
dhcp-users-ow...@lists.isc.org
When replying, please edit your Subject line so it is more specific
than "Re: Contents of dhcp-users digest..."
Today's Topics:
1. Re: To have various IP ranges in the same subnet and assign
the IP Address depending of the device type that sends the
request. (Bill Shirley)
----------------------------------------------------------------------
Message: 1
Date: Fri, 16 Aug 2019 12:38:54 -0400
From: Bill Shirley <b...@c3po.polymerindustries.biz>
To: dhcp-users@lists.isc.org
Subject: Re: To have various IP ranges in the same subnet and assign
the IP Address depending of the device type that sends the request.
Message-ID:
<30cda3f3-e34e-0183-7355-fabc0fc2f...@c3po.polymerindustries.biz>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
You don't need substring for the host name for regexp.? Regexp finds the string
*anywhere* in the host name.? From my earlier reply to you:
class "mobile_device" {
??? match if (
??? ??? option vendor-class-identifier ~~ "android"
??? ??? or option host-name ~~ "android"
??? ??? or option host-name ~~ "iphone"
??? ??? or option host-name ~~ "samsung-"
??? ??? or option host-name ~~ "galaxy"
??? ??? or option host-name ~~ "ipod"
??? ??? or option host-name ~~ "ipad"
??? ??? or option host-name ~~ "watch"
??? ??? or option host-name ~~ "nintendo 3ds"
??? );
}
Host name "theIphoneOfBob" will match on the above class.
Bill
On 8/16/2019 3:27 AM, Juan Antonio Garc?a Moreno wrote:
> Hi Bob,
>
> I think too that that works but I was thinking to do with only one "Class"
> and a include file with all of "subclass". I'm test
> it later.
>
> To classify, I am doing now this:
>
> ------------------------------------------------------------------------------------------------------------
> #*** WORKS ***
> class "smartphones" {
>
> ? match if (
>
> ? ? # ************************ ANDROID ****************************
> ? ? substring(option vendor-class-identifier,0,13) = "android-dhcp-" or
> ? ? substring(option vendor-class-identifier,0,7) = "HUAWEI:" or
> ? ? substring(option vendor-class-identifier,0,7) = "dhcpcd-" or
> ? ? # ************************ IOS ****************************
> ? ? substring(option host-name,0,6) ~~ "iphone" or
> ? ? substring(option host-name,0,4) ~~ "ipod" or
> ? ? substring(option host-name,0,4) ~~ "ipad" or
> ? ? # ********************* Windows-Phone *********************....
> ? ? substring(option host-name,0,13) ~~ "windows-phone"
>
> ? ? );
>
> }
> ------------------------------------------------------------------------------------------------------------
>
> The most Android phones sends the "Option 62" and I think that I haven't
> problems to classific them.
>
> The problem that I have found is that Windows-Movile phones and the iPhones
> not send the "Option 62" and I need do the
> classifi by the "Host Name (Option 12)".
>
> With "substring(option host-name,0,6) ~~ "iphone" I can classify, by example,
> these phones by Host Name:
>
> ---------------------------------------------------
> iphone-John
> iPhone-John
> Iphone-Sam
> Iphone Administration
> ...
> ---------------------------------------------------
>
> But I have found situations like these:
>
> ---------------------------------------------------
> Bod-iphone
> JohnyiPhone
> Samuel-Iphone
> Contability Iphone
> ...
> ---------------------------------------------------
>
> Then I think that I would need add a line by each different situation, by
> example:
>
> ---------------------------------------------------
> substring(option host-name,5,6) ~~ "iphone"
> substring(option host-name,6,6) ~~ "iphone"
> substring(option host-name,8,6) ~~ "iphone"
> substring(option host-name,13,6) ~~ "iphone"
> ---------------------------------------------------
>
> Would I can classify the iPhone phones and the Windows phones otherwise?
>
>
> Are there any way to summarize these lines, for example, in:
>
> ---------------------------------------------------
> substring(option host-name) "<CONTAINING>" "iphone"
> ---------------------------------------------------
>
> or similary?
>
>
> Best regards
>
>
> El jue., 8 ago. 2019 a las 22:33, Bob Harold (<rharo...@umich.edu
> <mailto:rharo...@umich.edu>>) escribi?:
>
>
> On Thu, Aug 8, 2019 at 3:28 AM Juan Antonio Garc?a Moreno
> <jagar...@emergya.com <mailto:jagar...@emergya.com>> wrote:
>
> Hi again,
>
> I have tested this and work:
>
>
> --------------------------------------------------------------------------
> class "smartphones" {
>
> ? match if substring(option vendor-class-identifier,0,13) =
> "android-dhcp-" or
> ? ? ? ? ? ?substring(option vendor-class-identifier,0,7) = "HUAWEI:"
> or
> ? ? ? ? ? ?substring(option vendor-class-identifier,0,7) = "dhcpcd-";
>
> }
>
> --------------------------------------------------------------------------
>
> But if I change it to:
>
>
> --------------------------------------------------------------------------
> class "smartphones" {
>
> ? match if substring(option vendor-class-identifier,0,13) or
> ? ? ? ? ? ?substring(option vendor-class-identifier,0,7);
>
> }
>
> subclass "smartphones" "android-dhcp-";
> subclass "smartphones" "HUAWEI:";
> subclass "smartphones" "dhcpcd-";
>
>
> That won't work.? The syntax is wrong.? Look carefully at the examples
> originally given for the two syntax that work.?
> "IF" requires a boolean expression "a = b" or "a ~~ b" etc.
>
> You might try:
>
> class "smartphones13" {
> ? match substring(option vendor-class-identifier,0,13)? # note NO "if"
> }
> subclass "smartphones13" "android-dhcp-";
>
> class "smartphones7" {
> ? match substring(option vendor-class-identifier,0,7)? # note NO "if"
> }
> subclass "smartphones7" "HUAWEI:";
> subclass "smartphones7" "dhcpcd-";
>
> I cannot say if it would work, but worth a try.? I think this is as close
> as I can get to what you wanted.
>
> --
> Bob Harold
>
>
> --------------------------------------------------------------------------
>
> When I reload the config in the server, It shows me this error:
>
>
> --------------------------------------------------------------------------
> # service dhcp-server force-reload
> dhcpd self-test failed. Please fix the config file.
> The error was:
> Internet Systems Consortium DHCP Server 4.1.1-P1
> Copyright 2004-2010 Internet Systems Consortium.
> All rights reserved.
> For info, please visit https://www.isc.org/software/dhcp/
> /etc/dhcp/dhcpd.conf line 67: expecting boolean expressions
> ? ? ? ? ? ?substring(option vendor-class-identifier,0,7);
> ? ^
> WARNING: Host declarations are global.? They are not limited to the
> scope you declared them in.
> Configuration file errors encountered -- exiting
> #
>
> --------------------------------------------------------------------------
>
> I can't do this or I am doint it wrong?
>
> Best regards
>
> El jue., 8 ago. 2019 a las 7:50, Bill Shirley
> (<b...@c3po.polymerindustries.biz
> <mailto:b...@c3po.polymerindustries.biz>>) escribi?:
>
> Here's a couple of classes you might find useful:
> class "mobile_device" {
> ??? match if (
> ??? ??? option vendor-class-identifier ~~ "android"
> ??? ??? or option host-name ~~ "android"
> ??? ??? or option host-name ~~ "iphone"
> ??? ??? or option host-name ~~ "samsung-"
> ??? ??? or option host-name ~~ "galaxy"
> ??? ??? or option host-name ~~ "ipod"
> ??? ??? or option host-name ~~ "ipad"
> ??? ??? or option host-name ~~ "watch"
> ??? ??? or option host-name ~~ "nintendo 3ds"
> ??? );
> }
> class "Microsoft" {
> ??? match if substring(option vendor-class-identifier, 0, 4) =
> "MSFT";
> ??? set member_of = "Microsoft";
> }
> The first class uses the regexp operator ~~ (case insensitive).?
> There is also the
> case sensitive operator ~=.
>
> On the subject of implicit deny for a pool with only "allow
> members":
> I classify most of my devices (i.e. Panasonic, Ricoh, Canon,
> Linux, Microsoft) to assign
> them to a specific pool (i.e Printers, Linux, Microsoft,
> mobile_device).? Then I have an
> "uncategorized" pool for those devices that aren't in a currently
> defined class so that they
> will get an address.? If later I change a class to include a
> device (say Epson), that device
> will request its previous address on renew and *will get it* if
> my "uncategorized" pool doesn't
> have a 'deny members of "Epson"' configuration line.
>
> TL;DR - If a device requests a renewal of an address and there is
> no "deny members" for
> the pool, it will be granted.
>
> dhcp-server-4.3.6-10.fc27.x86_64
>
> Bill
>
> On 8/7/2019 8:42 AM, Juan Antonio Garc?a Moreno wrote:
>> Hi Simon,
>>
>> Too much thanks by your anotation about the Hosts Declarations.
>> I will keep them in mind and I will change it.
>>
>> About the Hosts Classifications, I have tested this and works
>> for me:
>>
>>
>> ------------------------------------------------------------------------------
>> class "smartphones" {
>> ? match if substring(option vendor-class-identifier,0,13) =
>> "android-dhcp-" or
>> ? ? ? ? ? ?substring(option vendor-class-identifier,0,7) =
>> "HUAWEI:" or
>> ? ? ? ? ? ?substring(option vendor-class-identifier,0,7) =
>> "dhcpcd-";
>> }
>>
>> ------------------------------------------------------------------------------
>>
>> That is the same that this:
>>
>>
>> ------------------------------------------------------------------------------
>> class "smartphones" {
>> ? match option vendor-class-identifier;
>> }
>>
>> subclass "smartphones" "android-dhcp-9"
>> subclass "smartphones" "android-dhcp-8.1.0"
>> subclass "smartphones" "android-dhcp-7.0"
>> subclass "smartphones" "HUAWEI:android:FIG-L11"
>> subclass "smartphones" "HUAWEI:android:QC_Reference_Phone"
>> subclass "smartphones" "dhcpcd-5.5.6"
>>
>> ------------------------------------------------------------------------------
>>
>> And I can change it to:
>>
>>
>> ------------------------------------------------------------------------------
>> class "smartphones" {
>> ? match option vendor-class-identifier;
>> }
>>
>> include smartphones.cfg
>>
>> * smartphones.cfg file containing the subclass lines.
>>
>> ------------------------------------------------------------------------------
>>
>> But, is there any way to minimize the number of lines to include
>> in the smartphones.cfg file using some kind of
>> wildcard or expression/function like "substring()" used in the
>> Class Declaration?
>>
>> Another question:
>>
>> The iPhones and the iPads not send the "vendor-class-identifier"
>> option in the DHCP Discover Packet.
>>
>> Could I classify iPhones and iPads taking into account some
>> other parameter of the DHCP Discover Packet?
>>
>>
>> Best regards
>>
>>
>>
>> El lun., 5 ago. 2019 a las 19:35, Simon Hobson
>> (<dh...@thehobsons.co.uk <mailto:dh...@thehobsons.co.uk>>) escribi?:
>>
>> Juan Antonio Garc?a Moreno <jagar...@emergya.com
>> <mailto:jagar...@emergya.com>> wrote:
>>
>> > I relly have some hosts declarations, but I don't have put
>> these in the post.
>>
>> Ah yes, about that ... see below !
>>
>> > subnet 10.53.0.0 netmask 255.255.0.0 {
>> >
>> >? ?default-lease-time 86400;
>> >? ?max-lease-time 172800;
>> >
>> >? ?option broadcast-address 10.53.255.255;
>> >? ?option routers 10.53.1.1;
>> >
>> >? ?# Unknown Clients Range.
>> >? ?pool {
>> >? ? ?deny members of "smartphones";
>> >? ? ?range 10.53.33.1 10.53.35.254;
>> >? ?}
>> >
>> >? ?# Smartphones Range.
>> >? ?pool {
>> >? ? ?allow members of "smartphones";
>> >? ? ?range 10.53.10.2 10.53.11.254;
>> >? ?}
>> >
>> >? ?host PC-01 {
>> >? ? ?hardware ethernet ff:ff:ff:ff:ff:01;
>> >? ? ?fixed-address 10.53.100.5;
>> >? ?}
>> >
>> >? ?host PC-02 {
>> >? ? ?hardware ethernet ff:ff:ff:ff:ff:02;
>> >? ? ?fixed-address 10.53.100.6;
>> >? ?}
>> >
>> > }
>>
>> That is another common mistake. Host declarations are always
>> global in scope even though you might think that
>> putting them inside a subnet declaration would tie them to
>> that subnet. So even though declared inside one
>> subnet, they will be "known" in any subnet - which in itself
>> can cause considerable confusion.
>> But what really makes life "interesting" (see
>>
>> https://en.wikipedia.org/wiki/May_you_live_in_interesting_times) is that
>> should a host be connected to a
>> different network, it will inherit option values from the
>> subnet where it is defined. Thus you find yourself
>> with a client that's been given an address by DHCP, but the
>> gateway address it's been given is in a
>> completely different subnet !
>>
>>
>> > And too, howto fill a text file with the
>> "vendor-class-identifier" of the smartphones and include in the
>> DHCP Server config to match the smartphones devices too.
>>
>> It's a simple scripting exercise to take a text file
>> containing one string per line, and build a config file
>> snippet. You can then use an include statement to
>> incorporate that config snippet into the daemon config.
>>
>> _______________________________________________
>> dhcp-users mailing list
>> dhcp-users@lists.isc.org <mailto:dhcp-users@lists.isc.org>
>> https://lists.isc.org/mailman/listinfo/dhcp-users
>>
>>
>>
>> --
>> EMERGYA <http://www.emergya.com/>
>> *Juan Garc?a*
>> *Dto. de Soporte Interno*
>> *EMERGYA INGENIER?A*
>> *m:*?+34 954 517 577
>> *p:*?+34 954 517 577
>> *e:*jagar...@emergya.com <mailto:jagar...@emergya.com>
>> linkedin icon <https://www.linkedin.com/company/emergya>
>> facebook icon <https://www.facebook.com/Emergya> twitter
>> icon <https://twitter.com/emergya>youtube icon
>> <https://www.youtube.com/channel/UCU0ISPwk1pcOWwjpX63gN_A>
>>
>>
>> _______________________________________________
>> dhcp-users mailing list
>> dhcp-users@lists.isc.org <mailto:dhcp-users@lists.isc.org>
>> https://lists.isc.org/mailman/listinfo/dhcp-users
> _______________________________________________
> dhcp-users mailing list
> dhcp-users@lists.isc.org <mailto:dhcp-users@lists.isc.org>
> https://lists.isc.org/mailman/listinfo/dhcp-users
>
>
>
> --
> EMERGYA <http://www.emergya.com/>
> *Juan Garc?a*
>
> *Dto. de Soporte Interno*
>
> *EMERGYA INGENIER?A*
>
> *m:*?+34 954 517 577
>
> *p:*?+34 954 517 577
> *e:*jagar...@emergya.com <mailto:jagar...@emergya.com>
> linkedin icon <https://www.linkedin.com/company/emergya> facebook
> icon <https://www.facebook.com/Emergya> twitter icon
> <https://twitter.com/emergya>youtube icon
> <https://www.youtube.com/channel/UCU0ISPwk1pcOWwjpX63gN_A>
>
> _______________________________________________
> dhcp-users mailing list
> dhcp-users@lists.isc.org <mailto:dhcp-users@lists.isc.org>
> https://lists.isc.org/mailman/listinfo/dhcp-users
>
> _______________________________________________
> dhcp-users mailing list
> dhcp-users@lists.isc.org <mailto:dhcp-users@lists.isc.org>
> https://lists.isc.org/mailman/listinfo/dhcp-users
>
>
>
> --
> EMERGYA <http://www.emergya.com/>
> *Juan Garc?a*
> *Dto. de Soporte Interno*
> *EMERGYA INGENIER?A*
> *m:*?+34 954 517 577
> *p:*?+34 954 517 577
> *e:*jagar...@emergya.com <mailto:jagar...@emergya.com>
> linkedin icon <https://www.linkedin.com/company/emergya> facebook icon
> <https://www.facebook.com/Emergya> twitter icon
> <https://twitter.com/emergya>youtube icon
> <https://www.youtube.com/channel/UCU0ISPwk1pcOWwjpX63gN_A>
>
>
> _______________________________________________
> dhcp-users mailing list
> dhcp-users@lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://lists.isc.org/pipermail/dhcp-users/attachments/20190816/afdf1b0d/attachment.html>
------------------------------
Subject: Digest Footer
_______________________________________________
dhcp-users mailing list
dhcp-users@lists.isc.org
https://lists.isc.org/mailman/listinfo/dhcp-users
------------------------------
End of dhcp-users Digest, Vol 130, Issue 14
*******************************************
