SonicWALL TELE3 SP, Руководство администратора

Страница: 106 / 210

DHCP Server Page 105
To configure the SonicWALL as a Remote Gateway , use the following steps:
1. Log into the Management interface, click DHCP , and then DHCP over VPN .
2. Select Remote Gateway from the DHCP Relay Mode menu.
LAN IP Addresses
3.
Select the VPN Security Association to be used for the VPN tunnel from the Obtain using
DHCP through this SA menu.
Note : Only VPN Security Associations using IKE can be used as VPN tunnels for DHCP.
4. The Relay IP address is an IP address from the pool of specific IP addresses on the
Central Gateway .
5. The SonicWALL can also be managed through the Relay IP address.
6.
If you enable Block traffic through tunnel when IP spoof detected , the SonicWALL
blocks any traffic across the VPN tunnel that is spoofing an authenticated user’s IP address.
If you have any static devices, however, you must ensure that the correct Ethernet address
is entered for the device. The Ethernet address is used as part of the identification process,
and an incorrect Ethernet address can cause the SonicWALL to respond to IP spoofs.
7.
If the VPN tunnel is disrupted, temporary DHCP leases can be obtained from the local DHCP
server. Once the tunnel is again active, the local DHCP server stops issuing leases. Enable
the
Obtain temporary lease from local DHCP server if tunnel is down check box.
By enabling this check box, you have a failover option in case the tunnel ceases to function.
If you want to allow temporary leases for a certain time period, enter the number of