Zyxel VES-1624FT-55A [158/312] Chapter 24 packet filtering

Zyxel VES-1624FT-55A [158/312] Chapter 24 packet filtering
Chapter 24 Packet Filtering
VES-1624FT-55A User’s Guide
158
ARP Pass through 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 Pass
through
NetBIOS (Network Basic Input/Output System) are TCP or UDP packets that
enable a computer to find other computers.
DHCP Pass through 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.
EAPOL Pass
through
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.
IGMP Pass through Internet Group Multicast Protocol is used when sending packets to a specific
group of hosts.
Add 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 IP DSLAM’s volatile memory. The IP
DSLAM 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.
Cancel Click Cancel to begin configuring the fields afresh.
This table shows the xDSL port packet filter settings.
Port These are the numbers of the xDSL ports. Click this number to edit the port’s
filter settings in the section at the top.
PPPoE, IP, ARP,
NetBios, DHCP,
EAPOL, IGMP,
PPPoE Only
These are the packet filter settings for each port.
V” displays for the packet types that the IP DSLAM is to accept on the port. “-
displays for packet types that the IP DSLAM is to reject on the port (packet
types that are not listed are accepted). When you select PPPoE Only,”#
appears for all of the packet types. With PPPoE Only, the IP DSLAM rejects all
packet types except for PPPoE (packet types that are not listed are also
rejected).
Table 46 Packet Filter (continued)
LABEL DESCRIPTION

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