Juniper ZTP ISC DHCP Config for EX Series Switches

dhcpd.conf

# dhcpd.conf

default-lease-time 600;
max-lease-time 7200;

option domain-name-servers 1.1.1.1;

option option-150                  code 150 = ip-address;
option space juniper;
option juniper.image-file-name     code 0 = text;
option juniper.config-file-name    code 1 = text;
option juniper.image-file-type     code 2 = text;
option juniper.transfer-mode       code 3 = text;
option juniper.alt-image-file-name code 4 = text;
option juniper.http-port           code 5 = text;
option juniper-encapsulation       code 43 = encapsulate juniper;

class "ex3400-ex2300" {
  match if (
    (option vendor-class-identifier ~~ ".*ex3400.*")
    or
    (option vendor-class-identifier ~~ ".*ex2300.*")
  );
  option option-150 10.200.0.252;
  option juniper.image-file-name "juniper/{{ ex2300_firmware }}";
  option juniper.image-file-type "symlink";
  option juniper.http-port "8080";
  option juniper.transfer-mode "http";
  option juniper.config-file-name "juniper/juniper.conf";
}

subnet 10.210.0.0 netmask 255.255.255.0 {
  authoritative;
  option routers 10.210.0.1;
  pool {
    allow members of "ex3400-ex2300";
    range 10.210.0.50 10.210.0.99;
  }
  pool {
    allow unknown-clients;
    range 10.210.0.2 10.210.0.49;
  }
}

The regex is needed as between version 18.2R3-S4.1 and 20.4R2-S1.6 the vendor-class-identifier changed from Juniper-ex3400-24t-... to Juniper:ex3400-24t:....