ENABLE NAT
If the LAN is configured with a private IP address, the user should select this
checkbox . The NAT submenu will appear in the Advanced Setup menu after
reboot. On the other hand, if a private IP address is not used on the LAN side (i.e.
the LAN side is using a public IP), this checkbox should not be selected, so as to
free up system resources for improved performance.
ENABLE FIREWALL
If this checkbox is selected, the Security submenu will be displayed on the
Advanced Setup menu after reboot. If firewall is not necessary, this checkbox
should not be selected so as to free up system resources for better performance.
ENABLE IGMP MULTICAST
Tick the checkbox to enable Internet Group Membership Protocol (IGMP)
multicast. IGMP is a protocol used by IPv4 hosts to report their multicast group
memberships to any neighboring multicast routers.
STEP 4: Choose an interface to be the default gateway.
Click Next to continue or click Back to return to the previous step.
STEP 5: Select DNS Server Interface from available WAN interfaces OR enter
static DNS server IP addresses for the system. Click Next to continue or
click Back to return to the previous step.
Note: In ATM mode, if only a single PVC with IPoA or static IPoE protocol is
configured, Static DNS server IP addresses must be entered.
