ZyXEL Communications IES-1248 VDSL-SWITCH User Manual page 138

IES-1248 User's Guide
LABEL
IP Pass through
ARP Pass through
NetBios Pass
through
DHCP Pass through
EAPOL Pass
through
IGMP Pass through
Add
Cancel
This table shows the ADSL port packet filter settings.
Port
PPPoE, IP, ARP,
NetBios, DHCP,
EAPO, IGMP
15-2
Table 15-1 Packet Filter
Internet Protocol. The underlying protocol for routing packets on the Internet and other
TCP/IP-based networks.
Address Resolution Protocol is a protocol for mapping an Internet Protocol address (IP
address) to a physical computer address that is recognized in the local network.
NetBIOS (Network Basic Input/Output System) are TCP or UDP packets that enable a
computer to find other computers.
Dynamic Host Configuration Protocol automatically assigns IP addresses to clients when
they log on. DHCP centralizes IP address management on central computers that run
the DHCP server program. DHCP leases addresses, for a period of time, which means
that past addresses are "recycled" and made available for future reassignment to other
systems.
EAP (Extensible Authentication Protocol, RFC 2486) over LAN. EAP is used with IEEE
802.1x to allow additional authentication methods (besides RADIUS) to be deployed with
no changes to the access point or the wireless clients.
Internet Group Multicast Protocol is used when sending packets to a specific group of
hosts.
Click Add to save the filter settings. The settings then display in the summary table at
the bottom of the screen.
Clicking Add saves your changes to the IES-1248's volatile memory. The IES-1248
loses these changes if it is turned off or loses power, so use the Config Save link on the
navigation panel to save your changes to the non-volatile memory when you are done
configuring.
Click Cancel to begin configuring the fields afresh.
These are the numbers of the ADSL ports. Click this number to edit the port's filter
settings.
These are the packet filter settings for each port.
"V" displays for the packet types that the IES-1248 is to accept on the port. "-" displays
for packet types that the IES-1248 is to reject on the port.
DESCRIPTION
Packet Filtering