3 nd snooping example, Nooping, Xample – PLANET XGS3-24040 User Manual

Page 209

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Chapter 28 DHCP Configuration

27-3

4. Set the trust port of the switch

Command

Explanation

Global mode

ipv6 nd snooping trust

no ipv6 nd snooping trust

Set the trust port of the switch.

27.3 ND Snooping Example

Typical example:

The application environment of ND Snooping, the figure is as follows:

Figure 7-1 ND Snooping typical configuration

The configuration explanation:

SW2 is layer 3 switch, it connect to the layer 2 switch SW1, and enable IPv6 function and RA function;

SW1 is layer 2 switch, it enables IPv6 function and ND Snooping, and enable the control function of ND

snooping on the ports which connect three PC nodes.

PC1, PC2, PC3 are three PCs, each PC installed IPv6 protocol and directly connect SW1, the direct ports are

1/1, 1/2, 1/3. Layer 2 switch SW1 enabled ND Snooping. PC1, PC2 and PC3 correctly receive RA router

advertisement packets from SW2. According to the link prefix 2001::/64 of RA packets, three PCs create IPv6

addresses automatically, they are:

PC1: FE80::2AA:FF:FE9A:4CA2, 2001::2AA:FF:FE9A:4CA2, 2001::23:4A:1122:C411;

PC2: FE80::2BB:FF:FE9A:4CA2, 2001::2BB:FF:FE9A:4CA2, 2001::32:4B:2211:11C4;

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