ZyXEL Communications ZyWALL 2 Series User Manual

Page of 614
ZyWALL 2 Series User’s Guide 
23-10 
WAN and Dial Backup Setup 
Table 23-6 Menu 11.3: Remote Node Network Layer Options 
FIELD 
DESCRIPTION 
EXAMPLE 
Network 
Address 
Translation 
Network Address Translation (NAT) allows the translation of an Internet 
protocol address used within one network (for example a private IP 
address used in a local network) to a different IP address known within 
another network (for example a public IP address used on the Internet).  
Press [SPACE BAR] and then [ENTER] to select either Full Feature, None 
or SUA Only.  
Choose None to disable NAT. 
Choose SUA Only if you have a single public IP address. SUA (Single 
User Account) is a subset of NAT that supports two types of mapping: 
Many-to-One and Server.  
Choose Full Feature if you have multiple public IP addresses. Full 
Feature
 mapping types include: One-to-OneMany-to-One (SUA/PAT), 
Many-to-Many OverloadMany- One-to-One and Server. When you 
select Full Feature you must configure at least one address mapping set! 
See the Network Address Translation (NAT) chapter for a full discussion on 
this feature. 
None 
(default) 
Metric 
Enter a number from 1 to 15 to set this route’s priority among the 
ZyWALL’s routes. The smaller the number, the higher priority the route 
has. 
15 
(default) 
Private 
This parameter determines if the ZyWALL will include the route to this 
remote node in its RIP broadcasts. If set to Yes, this route is kept private 
and not included in RIP broadcasts. If No, the route to this remote node will 
be propagated to other hosts through RIP broadcasts. 
No 
(default) 
RIP 
Direction 
Press [SPACE BAR] and then [ENTER] to select the RIP Direction from 
Both/ None/In Only/Out Only and None
Both 
(default) 
Version   Press [SPACE BAR] and then [ENTER] to select the RIP version from RIP-
1/RIP-2B/RIP-2M. 
RIP-1 
Multicast 
IGMP (Internet Group Multicast Protocol) is a session-layer protocol used 
to establish membership in a Multicast group. The ZyWALL supports both 
IGMP version 1 (IGMP-v1) and version 2 (IGMP-v2). Press the [SPACE 
BAR] to enable IP Multicasting or select None to disable it. See the LAN 
Setup chapter for more information on this feature. 
None 
(default) 
Once you have completed filling in Menu 11.3 Remote Node Network Layer Options, press [ENTER] at 
the message “Press ENTER to Confirm...” to save your configuration and return to menu 11, or press [ESC] 
at any time to cancel.