Chapter 56 IPv6 Neighbor Table
GS2220 Series User’s Guide
448
C HAPTER 56
IPv6 Ne ig hbo r Ta ble
56.1 IPv6 Ne ig hbo r Ta ble O ve rvie w
This chapter introduces the IPv6 neighbor table.
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 Ba sic Se tting > IPv6 > IPv6 Co nfig ura tio n > IPv6 Ne ig hbo r
Se tup 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.
56.2 Vie wing the IPv6 Ne ig hbo r Ta ble
Use this screen to view IPv6 neighbor information on the Switch. Click Ma na g e me nt > IPv6 Ne ig hbo r
Ta b le in the navigation panel to display the screen as shown.
Fig ure 341 Management > IPv6 Neighbor Table
The following table describes the labels in this screen.
Table 235 Management > IPv6 Neighbor Table
LABEL DESCRIPTIO N
Sort by Select this to display and arrange the data according to IPv6 address (Addre ss), MAC address
(MAC) or IPv6 interface (Inte rfa c e ). The information is then displayed in the summary table below.
Index This field displays the index number of each entry in the table.
Address This field displays the IPv6 address of the Switch or a neighboring device.
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