Domain Name Server

Domain Name Server

This field displays the IP address of the DNS server.

Source

This field displays whether the DNS server address is configured manually (Static) or obtained automatically using DHCPv6.

IPv6 Table

Index

This field displays the index number of an IPv6 interface. Click on an index number to view more interface details.

Interface

This is the name of the IPv6 interface you created.

Active

This field displays whether the IPv6 interface is activated or not.

Static IPv6 Active

This field displays whether the IPv6 interface is activated or not.

This field displays the Maximum Transmission Unit (MTU) size for IPv6 packets on this interface.

This field displays the maximum number of ICMPv6 error messages which are allowed to transmit in a given time interval. If the bucket is full, subsequent error messages are suppressed.

This field displays the time period (in milliseconds) during which ICMPv6 error messages of up to the bucket size can be transmitted. 0 means no limit.

This field displays whether Neighbor Discovery (ND) Duplicate Address Detection (DAD) is enabled on the interface.

This field displays the number of consecutive neighbor solicitations the Switch sends for this interface.

This field displays the time interval (in milliseconds) at which neighbor solicitations are re-sent for this interface.

This field displays how long (in milliseconds) a neighbor is considered reachable for this interface.

This field displays the Switch’s link-local IP address and prefix generated by the interface. It also shows whether the IP address is preferred, which means it is a valid address and can be used as a sender or receiver address.

This field displays the Switch’s global unicast address to identify this interface.

This field displays the IPv6 multicast addresses of groups the Switch’s interface joins.

DHCPv6 Client Active

This field displays whether the Switch acts as a DHCPv6 client to get an IPv6 address from a DHCPv6 server.

Identity Association

An Identity Association (IA) is a collection of addresses assigned to a DHCP client, through which the server and client can manage a set of related IP addresses. Each IA must be associated with exactly one interface.

The IA type is the type of address in the IA. Each IA holds one type of address. IA_NA means an identity association for non-temporary addresses and IA_TA is an identity association for temporary addresses.

Each IA consists of a unique IAID and associated IP information.

This field displays the DHCPv6 T1 timer. After T1, the Switch sends the DHCPv6 server a Renew message.

An IA_NA option contains the T1 and T2 fields, but an IA_TA option does not. The DHCPv6 server uses T1 and T2 to control the time at which the client contacts with the server to extend the lifetimes on any addresses in the IA_NA before the lifetimes expire.

This field displays the DHCPv6 T2 timer. If the time T2 is reached and the server does not respond, the Switch sends a Rebind message to any available server.

This field displays the state of the TA. It shows

Active when the Switch obtains addresses from a DHCpv6 server and the TA is created.

Renew when the TA’s address lifetime expires and the Switch sends out a Renew message.

Rebind when the Switch does not receive a response from the original DHCPv6 server and sends out a Rebind message to another DHCPv6 server.

This field displays the DHCPv6 server’s unique ID.

This field displays the Switch’s global address which is assigned by the DHCPv6 server.

This field displays how long (in seconds) that the global address remains preferred.

This field displays how long (in seconds) that the global address is valid.

DNS

This field displays the DNS server address assigned by the DHCPv6 server.

Domain List

This field displays the address record when the Switch queries the DNS server to resolve domain names.

Restart DHCPv6 Client

Click Restart to send a new DHCP request to the DHCPv6 server and update the IPv6 address and DNS information for this interface.

IPv6 Hop Limit

Specify the maximum number of hops (from 1 to 255) in router advertisements. This is the maximum number of hops on which an IPv6 packet is allowed to transmit before it is discarded by an IPv6 router, which is similar to the TTL field in IPv4.

ICMPv6 Rate Limit Bucket Size

Specify the maximum number of ICMPv6 error messages (from 1 to 200) which are allowed to transmit in a given time interval. If the bucket is full, subsequent error messages are suppressed.

ICMPv6 Rate Limit Error Interval

Specify the time period (from 0 to 2147483647 milliseconds) during which ICMPv6 error messages of up to the bucket size can be transmitted. 0 means no limit.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring.

Cancel

Click Cancel to begin configuring this screen afresh.

Clear

Click Clear to reset the fields to the factory defaults.

Index

This is the interface index number.

Interface

This is the name of the IPv6 interface you created.

Active

This field displays whether the IPv6 interface is activated or not.

 

Select an entry’s checkbox to select a specific entry.

Edit

Click Edit to edit the selected interface.

Interface

Select the IPv6 interface you want to configure.

Active

Enable the switch button to enable the interface.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring.

Clear

Click Clear to clear the fields to the factory defaults.

Cancel

Click Cancel to not save the configuration you make and return to the last screen.

Index

This is the interface index number.

Interface

This is the name of the IPv6 interface you created.

IPv6 Link-Local Address

This is the static IPv6 link-local address for the interface.

IPv6 Default Gateway

This is the default gateway IPv6 address for the interface.

 

Select an entry’s checkbox to select a specific entry.

Edit

Click Edit to edit the selected entry.

Interface

Select the IPv6 interface you want to configure.

Link-Local Address

Manually configure a static IPv6 link-local address for the interface.

Default Gateway

Set the default gateway IPv6 address for the interface. When an interface cannot find a routing information for a frame’s destination, it forwards the packet to the default gateway.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring.

Clear

Click Clear to clear the fields to the factory defaults.

Cancel

Click Cancel to not save the configuration you make and return to the last screen.

IPv6 Domain Name Server

Domain Name Server 1/2

Enter a domain name server IPv6 address in order to be able to use a domain name instead of an IP address.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring.

Cancel

Click this to reset the Domain Name Server values in this screen to their last-saved values.

IPv6 Global Address Setup

Index

This is the interface index number.

Interface

This is the name of the IPv6 interface you created.

IPv6 Global Address/Prefix Length

This field displays the IPv6 global address and prefix length for the interface.

EUI-64

This shows whether the interface ID of the global address is generated using the EUI-64 format.

 

Select an entry’s checkbox to select a specific entry. Otherwise, select the checkbox in the table heading row to select all entries.

Add/Edit

Click Add/Edit to add a new entry or edit a selected one.

Delete

Click Delete to remove the selected entries.

Interface

Select the IPv6 interface you want to configure.

IPv6 Global Address

Manually configure a static IPv6 global address for the interface.

Prefix Length

Specify an IPv6 prefix length that specifies how many most significant bits (start from the left) in the address compose the network address.

EUI-64

Select this option to have the interface ID be generated automatically using the EUI-64 format.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring.

Clear

Click Clear to clear the fields to the factory defaults.

Cancel

Click Cancel to not save the configuration you make and return to the last screen.

Index

This is the interface index number.

Interface

This is the name of the IPv6 interface you created.

DAD Attempts

This field displays the number of consecutive neighbor solicitations the Switch sends for this interface.

NS Interval

This field displays the time interval (in milliseconds) at which neighbor solicitations are re-sent for this interface.

Reachable Time

This field displays how long (in milliseconds) a neighbor is considered reachable for this interface.

 

Select an entry’s checkbox to select a specific entry.

Edit

Click Edit to edit the selected entry.

Interface

Select the IPv6 interface you want to configure.

DAD Attempts

The Switch uses Duplicate Address Detection (DAD) with neighbor solicitation and advertisement messages to check whether an IPv6 address is already in use before assigning it to an interface.

Specify the number of consecutive neighbor solicitations (from 0 to 600) the Switch sends for this interface. Enter 0 to turn off DAD.

NS Interval

Specify the time interval (from 1000 to 3600000 milliseconds) at which neighbor solicitations are re-sent for this interface.

Reachable Time

Specify how long (from 1000 to 3600000 milliseconds) a neighbor is considered reachable for this interface.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring.

Clear

Click Clear to clear the fields to the factory defaults.

Cancel

Click Cancel to not save the configuration you make and return to the last screen.

Index

This is the interface index number.

Interface

This is the name of the IPv6 interface you created.

Flags

This field displays whether IPv6 hosts use DHCPv6 to obtain IPv6 stateful addresses (M) and/or additional configuration settings (O).

Minimum Interval

This field displays the minimum time interval at which the Switch sends router advertisements for this interface.

Maximum Interval

This field displays the maximum time interval at which the Switch sends router advertisements for this interface.

Lifetime

This field displays how long the router in router advertisements can be used as a default router for this interface.

Suppress

The Switch sends router advertisements and responses when Suppress is OFF.

 

Select an entry’s checkbox to select a specific entry.

Edit

Click Edit to edit the selected entry.

Interface

Select the IPv6 interface you want to configure.

Flags

Select the Managed Config Flag option to have the Switch set the “managed address configuration” flag (the M flag) to 1 in IPv6 router advertisements, which means IPv6 hosts use DHCPv6 to obtain IPv6 stateful addresses. De-select the option to set the flag to 0 and the host will not use DHCPv6 to obtain IPv6 stateful addresses.

Select the Other Config Flag option to have the Switch set the “Other stateful configuration” flag (the O flag) to 1 in IPv6 router advertisements, which means IPv6 hosts use DHCPv6 to obtain additional configuration settings, such as DNS information. De-select the option to set the flag to 0 and the host will not use DHCPv6 to obtain additional configuration settings.

Minimum Interval

Specify the minimum time interval (from 3 to 1350 seconds) at which the Switch sends router advertisements for this interface.

Maximum Interval

Specify the maximum time interval (from 4 to 1800 seconds) at which the Switch sends router advertisements for this interface.

Lifetime

Specify how long (from 0 to 9000 seconds) the router in router advertisements can be used as a default router for this interface.

Suppress

Enable the switch button to set the Switch to not send router advertisements and responses to router solicitations on this interface.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring.

Clear

Click Clear to clear the fields to the factory defaults.

Cancel

Click Cancel to not save the configuration you make and return to the last screen.

Index

This is the interface index number.

Interface

This is the name of the IPv6 interface you created.

Prefix

This field displays the IPv6 prefix and prefix length that the Switch includes in router advertisements for this interface.

Valid Lifetime

This field displays the IPv6 prefix valid lifetime.

Preferred Lifetime

This field displays the preferred lifetime of an IPv6 address generated from the prefix.

 

Select an entry’s checkbox to select a specific entry. Otherwise, select the checkbox in the table heading row to select all entries.

Add/Edit

Click Add/Edit to add a new entry or edit a selected one.

Delete

Click Delete to remove the selected entries.

Interface

Select the IPv6 interface you want to configure.

Prefix

Set the IPv6 prefix that the Switch includes in router advertisements for this interface.

Prefix Length

Set the prefix length that the Switch includes in router advertisements for this interface.

Valid Lifetime

Specify how long (from 0 to 4294967295 seconds) the prefix is valid for on-link determination.

Preferred Lifetime

Specify how long (from 0 to 4294967295 seconds) that addresses generated from the prefix remain preferred.

The preferred lifetime cannot exceed the valid lifetime.

Flags

Select No-Autoconfig Flag to not allow IPv6 hosts to use this prefix.

Select No-Onlink Flag to not allow the specified prefix to be used for on-link determination.

Select No-Advertise Flag to set the Switch to not include the specified IPv6 prefix, prefix length in router advertisements for this interface.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring.

Clear

Click Clear to clear the fields to the factory defaults.

Cancel

Click Cancel to not save the configuration you make and return to the last screen.

Index

This is the interface index number.

Interface

This is the name of the IPv6 interface you created.

Neighbor Address

This field displays the IPv6 address of the neighboring device which can be reached through the interface.

MAC

This field displays the MAC address of the neighboring device which can be reached through the interface.

 

Select an entry’s checkbox to select a specific entry. Otherwise, select the checkbox in the table heading row to select all entries.

Add/Edit

Click Add/Edit to add a new entry or edit a selected one.

Delete

Click Delete to remove the selected entries.

Interface

Select the type of IPv6 interface for which you want to configure. The Switch supports the VLAN interface type for IPv6 at the time of writing.

Interface ID

Specify a unique identification number (from 1 to 4094) for the interface.

A static IPv6 neighbor entry displays in the MONITOR > IPv6 Neighbor Table screen only when the interface ID is also created in the SYSTEM > Interface Setup screen.

To have IPv6 function properly, you should configure a static VLAN with the same ID number in the SWITCHING > VLAN screens.

Neighbor Address

Specify the IPv6 address of the neighboring device which can be reached through the interface.

MAC

Specify the MAC address of the neighboring device which can be reached through the interface.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring.

Clear

Click Clear to clear the fields to the factory defaults.

Cancel

Click Cancel to not save the configuration you make and return to the last screen.

Index

This is the interface index number.

Interface

This is the name of the IPv6 interface you created.

IA-NA

This field displays whether the Switch obtains a non-temporary IP address from the DHCPv6 server.

Rapid-Commit

This field displays whether the Switch obtains information from the DHCPv6 server by a rapid two-message exchange.

DNS

This field displays whether the Switch obtains DNS server IPv6 addresses from the DHCPv6 server.

Domain-List

This field displays whether the Switch obtains a list of domain names from the DHCP server.

Information Refresh Minimum

This field displays the time interval (in seconds) at which the Switch exchanges other configuration information with a DHCPv6 server again.

 

Select an entry’s checkbox to select a specific entry.

Edit

Click Edit to edit the selected entry.

Interface

Select the IPv6 interface you want to configure.

IA Type

Select IA-NA to set the Switch to get a non-temporary IP address from the DHCPv6 server for this interface.

Optionally, you can also select Rapid-Commit to have the Switch send its DHCPv6 Solicit message with a Rapid Commit option to obtain information from the DHCPv6 server by a rapid two-message exchange. The Switch discards any Reply messages that do not include a Rapid Commit option. The DHCPv6 server should also support the Rapid Commit option to have it work well.

Options

Select DNS to have the Switch obtain DNS server IPv6 addresses and/or select Domain-List to have the Switch obtain a list of domain names from the DHCP server.

Information Refresh Minimum

Specify the time interval (from 600 to 4294967295 seconds) at which the Switch exchanges other configuration information with a DHCPv6 server again.

Apply

Click Apply to save your changes to the Switch’s run-time memory. The Switch loses these changes if it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to the non-volatile memory when you are done configuring.

Clear

Click Clear to clear the fields to the factory defaults.

Cancel

Click Cancel to not save the configuration you make and return to the last screen.