Ostatnia zmiana dla wersji: 14.1.0 (08.2025)
- The dialog design has been revised
- Set a extc-Variables with more than 1000 required leases
- 10.2026
- Overview of the DHCP leases now in the network topology
Define IPv6 address on interface

First, an IPv6 address with subnet and the corresponding zones must be entered on the interface on which IPv6 is to be "spoken". This IP determines the range in which the DHCP pool is located:
Configuration at menu / edit Interfaces / Tab IP Addresses
An IP address can be entered directly in the click box, in this example »2001:DB8::1/64.
DHCPv6-Server einrichten
The DHCPv6 address pool setup is only slightly different from the DHCP setup with IPv4.
Basic knowledge of IPv6 can be found here.
General

In step 1, a unique name for the pool as well as the start and end address must be specified.
The name is freely selectable, the pool start and end addresses are addresses from the previously defined subnet.
Edit pool
Once the pool has been created correctly, it can be edited with .
General |
UTMuser@firewall.name.fqdn Network Network configuration ![]() Edit pool - general
| |||
| Changes to the pool range start and pool range end possible | ||||
Options - DHCP Optionen | ||||
| Option | Option number | Wartość | Opis | ![]() |
|---|---|---|---|---|
| Router: | 3 | »2001:db8::1 | Router as configured in Define IPv6 address on interface. | |
| Domain name: | 15 | securepoint.local | Name of the domain in which the DHCP leases are assigned | |
| Name server: | 5 | »2001:db8::1 | Name server as configured in step 2 | |
| Netbios Nameserver: | 44 | NetBIOS over TCP/IP Name Server Option | ||
| SMTP-Server: | 69 | Simple Mail Transport Protocol (SMTP) Server Option | ||
| NTP Server: | 41 | Servers should be listed in order of preference. | ||
| Vendor Encapsulated Options: | 43 | Values must be given coded. | ||
| TFTP Server Name: | 66 | profile.gigaset.net | The IPv6 address, or hostname from the TFTP server option tftp-server-name text; | |
| Bootfile Name: | 67 | The name of the bootfile file option bootfile-name text; | ||
| Default URL: | 114 | https://teamwork.gigaset.com/gigawiki/display/GPPPO/DHCP+option+114 | Default URL option default-url string; | |
| VLAN ID: | 132 | The ID of the VLAN used option vlan-id code 132 = text; option vlan-id "128"; | ||
| Next Server: | The IPv6 address of the Next server | |||
| Default Lease Time: | 51 | 600 Seconds | Default validity period of the IP address if the client has not requested an explicit duration. | |
| Maximal Lease Time: | 7200 Seconds | Maximum validity period of the IP address in seconds that the client may receive when explicitly requested. | ||
| Reject unknown clients: | No | If activated Yes, an IP address is only assigned if there is a entry at Static DHCP tab for the MAC address of the client. notempty Changed standard behaviour ab v12.7: The static lease entry for the DHCP must be in the same pool to be considered known. The static lease entry for the DHCP must be in the same pool to be considered known. | ||
Static DHCP
If hosts are to be assigned predefined IP addresses ( fixed IPs bound to the MAC address, but assigned by the UTM), these IPs can be reserved with static leases:
Configuration under Obszar Static DHCP przycisk
Static leases outside a pool
Konfiguracja przekierowania DHCP
Za pomocą przekierowania DHCP urządzenia mogą dynamicznie otrzymywać swoją konfigurację sieciową przez sieć, nawet jeśli serwer DHCP znajduje się w innej podsieci.
- Jeśli na interfejsie znajduje się wiele podsieci i przekierowanie DHCP ma dotyczyć tylko jednej z tych podsieci, jest to możliwe jedynie za pomocą VLAN-ów.
- W tym celu dla podsieci interfejsu tworzone są VLAN-y. Jeden z wszystkimi podsieciami, które mają mieć przekierowanie DHCP, i jeden z pozostałymi podsieciami.
- Następnie jako interfejs po stronie klienta można wybrać odpowiedni VLAN zamiast całego interfejsu.
- Podsieć A z 192.168.1.0/24
- Podsieć B z 192.168.2.0/24
- Podsieć C z 192.168.3.0/24
Teraz ma zostać zdefiniowane przekierowanie DHCP dla podsieci A i C, ale nie dla B. W tym celu tworzony jest VLAN LAN2.1, któremu przypisane są podsieci A i C. Dla B tworzony jest również VLAN LAN2.2. Więc mamy:
- VLAN LAN1.1 z 192.168.1.0/24 i 192.168.3.0/24
- VLAN LAN1.2 z 192.168.2.0/24
W przypadku przekierowania DHCP jako interfejs po stronie klienta wybierany jest teraz VLAN LAN2.1 zamiast LAN2
Overview of DHCP pools / leases
The menu provides an overview of assigned static leases and existing DHCP connections. Static leases can also be edited there directly.
Further information can be found in the wiki article on network topology.












