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SONICWALL SONICOS ENHANCED 2.5 ADMINISTRATOR’S GUIDE
C
HAPTER
31:
Configuring DHCP Over VPN
Devices
1
To configure devices on your LAN, click the Devices tab.
2
To configure Static Devices on the LAN, click Add to display the Add LAN Device Entry
window, and type the IP address of the device in the IP Address field and then type the Ethernet
address of the device in the Ethernet Address field. An example of a static device is a printer as it
cannot obtain an IP lease dynamically. If you do not have Block traffic through tunnel when IP
spoof detected enabled, it is not necessary to type the Ethernet address of a device. You must
exclude the Static IP addresses from the pool of available IP addresses on the DHCP server so
that the DHCP server does not assign these addresses to DHCP clients. You should also exclude
the IP address used as the Relay IP Address. It is recommended to reserve a block of IP address
to use as Relay IP addresses. Click OK.
3
To exclude devices on your LAN, click Add to display the Add Excluded LAN Entry window.
Enter the MAC address of the device in the Ethernet Address field. Click OK.
4
Click OK to exit the DHCP over VPN Configuration window.
S
Alert: You must configure the local DHCP server on the remote SonicWALL security appliance to
assign IP leases to these computers.
S
Alert: If a remote site has trouble connecting to a central gateway and obtaining a lease, verify that
Deterministic Network Enhancer (DNE) is not enabled on the remote computer.
9
Tip: If a static LAN IP address is outside of the DHCP scope, routing is possible to this IP, i.e. two
LANs.