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Today's Topics:
1. Same MAC - diffrent IP depending on the contex (class)?
(Robert Socha)
----------------------------------------------------------------------
Message: 1
Date: Fri, 7 Aug 2020 23:02:24 +0200
From: Robert Socha <so...@socha.it>
To: dhcp-users@lists.isc.org
Subject: Same MAC - diffrent IP depending on the contex (class)?
Message-ID: <8429bc14-e5e3-4304-caa6-9ec02b841...@socha.it>
Content-Type: text/plain; charset=utf-8; format=flowed
Hi,
I wonder if it's possible to achieve this in ISC DHCP:
- I have static hosts only (only known clients - no dynamic assignments)
- I need to assign different addresses to host depending on if it's boot
client (PXE or UEFI), or if it's OS (linux,windows,etc) DHCP client discover
( I need that because we use RFC3021 or /32 route-able IP
assignments to customer services and this addresses are not supported by
UEFI firmware).
So something like this (in pseudo config) or as idea:
# arch-type -> option 93
if(if exists arch-type) {
# Private/netboot subnet
host N000c290e741d {
hardware ethernet 00:0c:29:0e:74:1d;
fixed-address 100.120.120.2;
option routers 100.120.120.1;
option subnet-mask 255.255.255.252;
}
} else {
# This for "public" network - discovers from "not boot agent"
host O000c290e741d {
hardware ethernet 00:0c:29:0e:74:1d;
fixed-address 10.255.255.11;
option routers 10.255.255.10;
if option vendor-class-identifier="MSFT 5.0" {
option subnet-mask 255.255.255.255;
} else {
option subnet-mask 255.255.255.254;
}
}
}
I looking for solution with static assignments (not dynamic pool's) for
netboot network (we some logic behind this assigned IP's)
Best regards
--
Robert Socha
------------------------------
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