Ppp Interfaces; Ppp Interface Summary - ZyXEL Communications UAG4100 User Manual

Table 54 DHCP Extended Options (continued)
OPTION NAME
VIVS
CAPWAP AC
TFTP Server

9.4 PPP Interfaces

Use PPPoE/PPTP interfaces to connect to your ISP. This way, you do not have to install or manage
PPPoE/PPTP software on each computer in the network.
Figure 72 Example: PPPoE/PPTP Interfaces
PPPoE/PPTP interfaces are similar to other interfaces in some ways. They have an IP address,
subnet mask, and gateway used to make routing decisions; they restrict bandwidth and packet
size; and they can verify the gateway is available. There are two main differences between PPPoE/
PPTP interfaces and other interfaces.
• You must also configure an ISP account object for the PPPoE/PPTP interface to use.
Each ISP account specifies the protocol (PPPoE or PPTP), as well as your ISP account information.
If you change ISPs later, you only have to create a new ISP account, not a new PPPoE/PPTP
interface. You should not have to change any network policies.
• You do not set up the subnet mask or gateway.
PPPoE/PPTP interfaces are interfaces between the UAG and only one computer. Therefore, the
subnet mask is always 255.255.255.255. In addition, the UAG always treats the ISP as a
gateway.

9.4.1 PPP Interface Summary

This screen lists every PPPoE/PPTP interface. To access this screen, click Configuration >
Network > Interface > PPP.
UAG4100 User's Guide
CODE DESCRIPTION
125 Vendor-Identifying Vendor-Specific option
DHCP clients and servers may use this option to exchange vendor-specific
information.
138 CAPWAP Access Controller addresses option
The Control And Provisioning of Wireless Access Points Protocol allows a
Wireless Termination Point (WTP) to use DHCP to discover the Access
Controllers to which it is to connect. This option carries a list of IPv4 addresses
indicating one or more CAPWAP ACs available to the WTP.
150 The option contains one or more IPv4 addresses that the client may use. The
current use of this option is for downloading configuration from a VoIP server
via TFTP; however, the option may be used for purposes other than contacting
a VoIP configuration server.
Chapter 9 Interfaces
111