ZyXEL GS1920 Series User Guide - Page 346

Neighbor Table

Page 346 highlights

CHAPTER 46 Neighbor Table This chapter introduces the IPv6 neighbor table. 46.1 IPv6 Neighbor Table Overview An IPv6 host is required to have a neighbor table. If there is an address to be resolved or verified, the Switch sends out a neighbor solicitation message. When the Switch receives a neighbor advertisement in response, it stores the neighbor's link-layer address in the neighbor table. You can also manually create a static IPv6 neighbor entry using the Basic Setting > IPv6 > IPv6 Configuration > IPv6 Neighbor Setup screen. When the Switch needs to send a packet, it first consults other table to determine the next hop. Once the next hop IPv6 address is known, the Switch looks into the neighbor table to get the linklayer address and sends the packet when the neighbor is reachable. If the Switch cannot find an entry in the neighbor table or the state for the neighbor is not reachable, it starts the address resolution process. This helps reduce the number of IPv6 solicitation and advertisement messages. 46.2 Viewing the IPv6 Neighbor Table Use this screen to view IPv6 neighbor information on the Switch. Click Management > Neighbor Table in the navigation panel to display the screen as shown. Figure 256 Management > Neighbor Table The following table describes the labels in this screen. Table 174 Management > Neighbor Table LABEL DESCRIPTION Index This field displays the index number of each entry in the table. Interface This field displays the ID number of the IPv6 interface on which the IPv6 address is created or through which the neighboring device can be reached. Neighbor Address This field displays the IPv6 address of the Switch or a neighboring device. MAC This field displays the MAC address of the IPv6 interface on which the IPv6 address is configure or the MAC address of the neighboring device. GS1920 Series User's Guide 346

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GS1920 Series User’s Guide
346
C
HAPTER
46
Neighbor Table
This chapter introduces the IPv6 neighbor table.
46.1
IPv6 Neighbor Table
Overview
An IPv6 host is required to have a neighbor table. If there is an address to be resolved or verified,
the Switch sends out a neighbor solicitation message. When the Switch receives a neighbor
advertisement in response, it stores the neighbor’s link-layer address in the neighbor table. You can
also manually create a static IPv6 neighbor entry using the
Basic Setting > IPv6 > IPv6
Configuration > IPv6 Neighbor Setup
screen.
When the Switch needs to send a packet, it first consults other table to determine the next hop.
Once the next hop IPv6 address is known, the Switch looks into the neighbor table to get the link-
layer address and sends the packet when the neighbor is reachable. If the Switch cannot find an
entry in the neighbor table or the state for the neighbor is not reachable, it starts the address
resolution process. This helps reduce the number of IPv6 solicitation and advertisement messages.
46.2
Viewing the IPv6 Neighbor Table
Use this screen to view IPv6 neighbor information on the Switch.
Click
Management
>
Neighbor
Table
in the navigation panel to display the screen as shown.
Figure 256
Management > Neighbor Table
The following table describes the labels in this screen.
Table 174
Management > Neighbor Table
LABEL
DESCRIPTION
Index
This field displays the index number of each entry in the table.
Interface
This field displays the ID number of the IPv6 interface on which the IPv6 address is created or
through which the neighboring device can be reached.
Neighbor
Address
This field displays the IPv6 address of the Switch or a neighboring device.
MAC
This field displays the MAC address of the IPv6 interface on which the IPv6 address is
configure or the MAC address of the neighboring device.