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Chapter 23 Packet Filtering

IES-1248-51V User’s Guide

196

The following table describes the labels in this screen.

Table 48 Packet Filter

LABEL DESCRIPTION

Port Use this drop-down list box to select an ADSL port for which you wish

to configure packet type filtering. This box is read-only after you click

on one of the port numbers in the table below.

PPPoE Only Select this to allow only PPPoE traffic. This will gray out the check

boxes for other packet types and the system will drop any non-PPPoE

packets.

Select the check boxes of the types of packets to accept on the ADSL

port. When you clear one of these check boxes, the field label

changes to Filter Out and the system drops the corresponding type

of packets

PPPoE Pass

through

Point-to-Point Protocol over Ethernet relies on PPP and Ethernet. It is

a specification for connecting the users on an Ethernet to the Internet

through a common broadband medium, such as a single DSL line,

wireless device or cable modem.

IP Pass through Internet Protocol. The underlying protocol for routing packets on the

Internet and other TCP/IP-based networks.

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.

Apply Click Apply to save the filter settings. The settings then display in the

summary table at the bottom of the screen.

Clicking Apply saves your changes to the IES-1248-51V’s volatile

memory. The IES-1248-51V 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 ADSL port packet filter settings.

1 2 ... 191 192 193 194 195 196 197 198 199 200 201 ... 653 654

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