ZyXEL VMG4927-B50A User Guide - Page 156
What You Can Do in this What You Need To Know
View all ZyXEL VMG4927-B50A manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 156 highlights
CHAPTER 11 Network Address Translation (NAT) 11.1 Overview This chapter discusses how to configure NAT on the VMG. NAT (Network Address Translation - NAT, RFC 1631) is the translation of the IP address of a host in a packet, for example, the source address of an outgoing packet, used within one network to a different IP address known within another network. 11.1.1 What You Can Do in this Chapter • Use the Port Forwarding screen to configure forward incoming service requests to the server(s) on your local network (Section 11.2 on page 157). • Use the Applications screen to forward incoming service requests to the server(s) on your local network (Section 11.3 on page 160). • Use the Port Triggering screen to add and configure the VMG's trigger port settings (Section 11.4 on page 162). • Use the DMZ screen to configure a default server (Section 11.5 on page 164). • Use the ALG screen to enable and disable the NAT and SIP (VoIP) ALG in the VMG (Section 11.6 on page 165). • Use the Address Mapping screen to configure the VMG's address mapping settings (Section 11.7 on page 166). • Use the Sessions screen to configure the VMG's maximum number of NAT sessions (Section 11.8 on page 168). 11.1.2 What You Need To Know Inside/Outside Inside/outside denotes where a host is located relative to the VMG, for example, the computers of your subscribers are the inside hosts, while the web servers on the Internet are the outside hosts. Global/Local Global/local denotes the IP address of a host in a packet as the packet traverses a router, for example, the local address refers to the IP address of a host when the packet is in the local network, while the global address refers to the IP address of the host when the same packet is traveling in the WAN side. VMG4927-B50A / VMG9827-B50A User's Guide 156