Zyxel-communications 5 Series Instrukcja Użytkownika Pobierz pdf (Strona 166)

ZyWALL 5/35/70 Series User’s Guide

166 Chapter 8 WAN Screens

8.12.3 PPTP Encapsulation

Point-to-Point Tunneling Protocol (PPTP) is a network protocol that enables secure transfer of

data from a remote client to a private server, creating a Virtual Private Network (VPN) using

TCP/IP-based networks.

RIP Direction RIP (Routing Information Protocol) allows a router to exchange routing information

with other routers. The RIP Direction field controls the sending and receiving of RIP

packets.

Choose Both, None, In Only or Out Only.

When set to Both or Out Only, the ZyWALL will broadcast its routing table

periodically.

When set to Both or In Only, the ZyWALL will incorporate RIP information that it

receives.

When set to None, the ZyWALL will not send any RIP packets and will ignore any

RIP packets received.

By default, RIP Direction is set to Both.

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

packets that the ZyWALL sends (it recognizes both formats when receiving).

Choose RIP-1, RIP-2B or RIP-2M.

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 non-router machines since they

generally do not listen to the RIP multicast address and so will not receive the RIP

packets. However, if one router uses multicasting, then all routers on your network

must use multicasting, also. By default, the RIP Version field is set to RIP-1.

Enable Multicast Select this check box to turn on IGMP (Internet Group Multicast Protocol). IGMP is

a network-layer protocol used to establish membership in a Multicast group - it is

not used to carry user data.

Multicast Version Choose None (default), IGMP-V1 or IGMP-V2. 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 would like to read more detailed information about interoperability between

IGMP version 2 and version 1, please see sections 4 and 5 of RFC 2236.

Spoof WAN MAC

Address

You can use the factory assigned default MAC Address or cloning the MAC address

from a computer on your LAN.

Otherwise, select the check box next to Spoof WAN MAC Address and enter the

IP address of the computer on the LAN whose MAC you are cloning. Once it is

successfully configured, the address will be copied to the rom file (ZyNOS

configuration file). It will not change unless you change the setting or upload a

different ROM file.

Clone the

computer’s MAC

address – IP

Address

Enter the IP address of the computer on the LAN whose MAC you are cloning.

It is recommended that you clone the MAC address prior to hooking up the WAN

port.

Apply Click Apply to save your changes back to the ZyWALL.

Reset Click Reset to begin configuring this screen afresh.

Table 41 NETWORK > WAN > WAN (PPPoE Encapsulation) (continued)

LABEL DESCRIPTION

1 2 ... 161 162 163 164 165 166 167 168 169 170 171 ... 834 835

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