Configure the switch to perform DHCP service in a VLAN

Stelian
Stelian Posts: 3  Freshman Member
First Comment
in Switch

Hello everyone!
I have a Zyxel GS1920-24.
I want to configure the switch to perform DHCP service in a VLAN as in the following link -
How to configure the switch to perform DHCP service in a VLAN — Zyxel Community
But I can't configure the DHCP service.
Any ideas why or how I can do this?
I don't have the same option as in the link above.
Do I need to do a firmware update?

Accepted Solution

  • Zyxel_Judy
    Zyxel_Judy Posts: 2,102  Zyxel Employee
    Zyxel Certified Network Engineer Level 2 - Nebula Zyxel Certified Network Engineer Level 2 - Switch Zyxel Certified Network Engineer Level 2 - Security Zyxel Certified Network Engineer Level 1 - Nebula
    edited November 2024 Answer ✓

    Hi @Stelian ,

    According to the documentation, we mentioned that only L3 Switch models (3800 series, and 4600 series) support the DHCP Server function.

All Replies

  • Zyxel_Judy
    Zyxel_Judy Posts: 2,102  Zyxel Employee
    Zyxel Certified Network Engineer Level 2 - Nebula Zyxel Certified Network Engineer Level 2 - Switch Zyxel Certified Network Engineer Level 2 - Security Zyxel Certified Network Engineer Level 1 - Nebula
    edited November 2024 Answer ✓

    Hi @Stelian ,

    According to the documentation, we mentioned that only L3 Switch models (3800 series, and 4600 series) support the DHCP Server function.

  • Stelian
    Stelian Posts: 3  Freshman Member
    First Comment

    Hi @Zyxel_Judy
    But does Zyxel USG FLEX 100 "know" how to manage VLAN's ?
    Does it have a DHCP server to allocate IPs for VLAN's ?

  • PeterUK
    PeterUK Posts: 3,740  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary

    yes the FLEX 100 does VLAN with DHCP server

  • Zyxel_Judy
    Zyxel_Judy Posts: 2,102  Zyxel Employee
    Zyxel Certified Network Engineer Level 2 - Nebula Zyxel Certified Network Engineer Level 2 - Switch Zyxel Certified Network Engineer Level 2 - Security Zyxel Certified Network Engineer Level 1 - Nebula

    Hi @Stelian ,

    The USG FLEX 100 can function as a DHCP server. It belongs to Zyxel's firewall series, not the switch series.

    If you have both a USG FLEX 100 and a GS1920-24, you can:

    1. Configure the USG FLEX 100 as a DHCP server for your desired VLANs
    2. Set up the corresponding VLAN configurations on the GS1920-24 switch

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