A10E/A28E/A28F Configuration Guide
Current Entry Num: 1
Ip Address Mac Address VLAN Port Type Inhw
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10.10.10.1 -- -- 2 static yes
Show interface trusted status and IP Source Guard static/dynamic binding configurations by
the command of show ip verify source.
Alpha-A28E#show ip verify source
Static Bind: Enable
Dhcp-Snooping Bind: Enable
Dhcp-Relay Bind: Disable
Port Trust
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1 yes
2 no
3 no
…
6.9 PPPoE+
6.9.1 Introduction
PPPoE Intermediate Agent (PPPoE+) is used in processing of authentication packet. PPPoE+
adds device information into the authentication packet to bind account and access device so
that the account is not shared and stolen, and the carrier's and users' interests are protected.
This will give the server enough information to identify users, avoiding account sharing and
theft and ensuring the network security.
With PPPoE dial-up mode, you can access the network through various interfaces of the
device only when one authentication is successfully. However, the server cannot accurately
differentiate users just by the authentication information, which contains the user name and
password. With PPPoE+, besides the user name and the password, other information, such as
the interface ID, is included in the authentication packet for authentication. If the interface ID
identified by the authentication server cannot match with the configured one, authentication
fails. This helps prevent illegal users from stealing accounts of other legal users for accessing
the network.
The PPPoE protocol adopts C/S mode, as shown in Figure 6-11. The switch acts as a relay
agent. Users access the network through PPPoE authentication. If the PPPoE server needs to
locate users, more information should be contained in the authentication packet.
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