Stormshield SN series - DHCP Relay Service

Primary DNS This field allows assigning a specific main DNS server to each DHCP client using
address reservation.
Select a host network object from the drop-down list. If no objects are selected, the
value “default” will be displayed in this column. The host selected in the Primary DNS
field in the Default settings section will then be used as the DNS server for the client.
Secondary DNS This field allows assigning a specific secondary DNS server to each DHCP client using
address reservation.
Select a host network object from the drop-down list. If no objects are selected, the
value “default” will be displayed in this column. The host selected in the Secondary
DNS field in the Default settings section will then be used as the DNS server for the
client.
Domain name This field allows indicating a specific domain name that will be used by the DHCP
client for its DNS resolution.
If no name is specified, the value “Default domain” will be displayed in this column.
The domain name indicated in the Domain name field in the Default settings section
will then be used for the client.
Advanced properties
Distribute the Web
proxy autodiscovery
(WPAD) file
If this option has been selected, the DHCP server will distribute the internet access
configuration to DHCP clients through a PAC Proxy Auto Configuration). This file, which
has a “.pac” extension, has to be entered in the authentication settings (Captive portal
tab in the menu Configuration>Users>Authentication). It can be made accessible from
internal and/or eternal interfaces (Internal interfaces and External interfaces tabs in
the menu Configuration>Users>Authentication).
Assigned lease time
Default (hour) For the purpose of optimizing network resources, IP addresses are assigned for a
limited period. You therefore need to indicate here the default duration for which
hosts will keep the same IP address.
Minimum (hour) Minimum duration for which hosts will keep the same IP address.
Maximum (hour) Maximum duration for which hosts will keep the same IP address.
“DHCP relay” service
The “DHCP relay” service contains 3 configuration zones:
l Settings This menu allows configuring the DHCP server(s) to which the firewall will relay DHCP
requests from client hosts.
l Listening interfaces for DHCP requests Network interfaces on which the firewall listens for
client DHCP requests.
l Outgoing interfaces on the DHCP relay. Specify the interfaces through which the firewall will
send requests to the DHCP server(s) indicated earlier.
Parameters
DHCP server(s) The drop-down list allows selecting a host object or group object containing hosts. The
firewall will relay client requests to this or these DHCP server(s).
Listening interfaces for DHCP requests
Indicate the network interfaces through which the firewall will receive DHCP client requests.
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SNS - USER CONFIGURATION MANUAL V.3
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