Avaya Business Secure Router 252 Configuration - Basics Bedienungsanleitung PDF herunterladen (Seite 103)

Chapter 6 LAN screens 103

Nortel Business Secure Router 252 Configuration — Basics

Configuring Static DHCP

With Static DHCP, you can assign IP addresses on the LAN to specific individual

computers based on their MAC Addresses.

Every Ethernet device has a unique MAC (Media Access Control) address. The

MAC address is assigned at the factory and consists of six pairs of hexadecimal

characters, for example, 00:A0:C5:00:00:02.

RIP Version The RIP Version field controls the format and the broadcasting method

of the RIP packets that the Business Secure Router sends (it

recognizes both formats when receiving). RIP-1 is universally

supported but RIP-2 carries more information. RIP-1 is probably

adequate for most networks, unless you have an unusual network

topology. Both RIP-2B and RIP-2M sends the routing data in RIP-2

format; the difference being that RIP-2B uses subnet broadcasting

while RIP-2M uses multicasting. Multicasting can reduce the load on

nonrouter machines since they generally do not listen to the RIP

multicast address and so does not receive the RIP packets. However, if

one router uses multicasting, then all routers on your network must use

multicasting, also. By default, RIP direction is set to Both and the

Version set to RIP-1.

Multicast Select IGMP V-1 or IGMP V-2 or None. IGMP (Internet Group Multicast

Protocol) is a network layer protocol used to establish membership in a

Multicast group—it is not used to carry user data. IGMP version 2 (RFC

2236) is an improvement over version 1 (RFC 1112) but IGMP version

1 is still in wide use. If you want to read more detailed information about

interoperability between IGMP version 2 and version 1, see sections 4

and 5 of

Internet Group Management Protocol

(RFC 2236).

Windows Networking (NetBIOS over TCP/IP)

Allow between

LAN and WAN

Select this check box to forward NetBIOS packets from the LAN to the

WAN and from the WAN to the LAN. If your firewall is enabled with the

default policy set to block WAN to LAN traffic, you also need to create a

WAN to LAN firewall rule that forwards NetBIOS traffic.

Clear this check box to block all NetBIOS packets going from the LAN

to the WAN and from the WAN to the LAN.

This field does the same as the Allow between WAN and LAN field in

the WAN IP screen. Enabling one automatically enables the other.

Apply Click Apply to save your changes to the Business Secure Router.

Reset Click Reset to begin configuring this screen afresh.

Table 14 LAN IP

Label Description

1 2 ... 98 99 100 101 102 103 104 105 106 107 108 ... 459 460

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