796882

ZyXEL VMG8825-Bx0B Manual

231
Zoom out
Zoom in
Previous page
1/434
Next page
VMG/XMG Series User’s Guide
231
CHAPTER 11
Network Address Translation
(NAT)
11.1 NAT Overview
This chapter discusses how to configure NAT on the Zyxel Device. 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 232).
• Use the Port Triggering screen to add and configure the Zyxel Device’s trigger port settings (Section
11.3 on page 236).
• Use the DMZ screen to configure a default server (Section 11.4 on page 239).
• Use the ALG screen to enable and disable the NAT and SIP (VoIP) ALG in the Zyxel Device (Section
11.5 on page 240).
• Use the Address Mapping screen to configure the Zyxel Device's address mapping settings (Section
11.6 on page 241).
• Use the Sessions screen to configure the Zyxel Device's maximum number of NAT sessions (Section
11.6 on page 241).
11.1.2 What You Need To Know
Inside/Outside
Inside/outside denotes where a host is located relative to the Zyxel Device, 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.
NAT
In the simplest form, NAT changes the source IP address in a packet received from a subscriber (the
inside local address) to another (the inside global address) before forwarding the packet to the WAN
… 231 …


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for ZyXEL VMG8825-Bx0B at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of ZyXEL VMG8825-Bx0B in the language / languages: English as an attachment in your email.

The manual is 13.81 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info