Flex 200H upgrade to V1.30(ABWV.1) - Lost name in DHCP reservation

GiuseppeR
GiuseppeR Posts: 308  Master Member
Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Engineer Level 1 - Nebula First Comment Friend Collector
edited November 14 in USG FLEX H Series

Hello everyone,

I moved from 1.21 to 1.30 patch 1 today.

As you can see I lost almost ALL the custom name I assigned to DHCP reservation:

This is the view I have AFTER the firmware upgrade:

The firewall was able to keep ONLY 4 host names out of 24 customized.

Same thing happened also with a 100HP:

Same firmware upgrade, same lost.

All Replies

  • Zyxel_Kay
    Zyxel_Kay Posts: 1,206  Zyxel Employee
    Zyxel Certified Network Engineer Level 2 - Nebula Zyxel Certified Network Engineer Level 2 - WLAN Zyxel Certified Network Engineer Level 2 - Switch Zyxel Certified Network Engineer Level 2 - Security

    Hi @GiuseppeR

    Could you please share the hostname you previously set on those devices?

    With the uOS1.30 update, we've introduced improvements to the DHCP Table reservation. Hostnames now need to follow these guidelines:

    Cannot start with a hyphen and may only contain letters [A-Z, a-z], numbers [0-9], and hyphens ( - ), with a maximum length of 255 characters.​

    If the hostname doesn't meet these requirements, the firewall will automatically convert it to the device's MAC address.

    Kay

    See how you've made an impact in Zyxel Community this year! https://bit.ly/Your2024Moments_Community

  • GiuseppeR
    GiuseppeR Posts: 308  Master Member
    Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Engineer Level 1 - Nebula First Comment Friend Collector
    edited November 15

    Hello @Zyxel_Kay

    on that Company I used the scheme to name APs like AP_office1, AP_office2 and so on.

    Same thing for all the switches and other appliances up to 24 reservations.

    To fix that, at least for the moment, I had to place those names (all those names are accepted on Nebula) in Description field. So with this new limitation, is it mandatory to use the Description field to use the name that Nebula accepts or the user wishes to use?

    Please let me know if I have to reorganize all the sites with H series.

  • Zyxel_Kay
    Zyxel_Kay Posts: 1,206  Zyxel Employee
    Zyxel Certified Network Engineer Level 2 - Nebula Zyxel Certified Network Engineer Level 2 - WLAN Zyxel Certified Network Engineer Level 2 - Switch Zyxel Certified Network Engineer Level 2 - Security

    Hi @GiuseppeR

    Yes. Currently, the DHCP Host Name field on the USG FLEX H is subject to specific limitations. To work within these restrictions, you could use names like AP-office1, AP-office2, and so on. If you'd like to use a name that exceeds these limitations for better device differentiation, you can enter it in the Description field instead.

    Kay

    See how you've made an impact in Zyxel Community this year! https://bit.ly/Your2024Moments_Community