Device Configuration 5 - 45
14. Refer to the IPv6 Settings field to define the following:
15. Select OK to save the changes to the security configuration. Select Reset to revert to the last saved configuration.
16. Select the Spanning Tree tab.
Figure 5-30 Port Channels - Spanning Tree tab
Trust 802.1p COS values Select this option to enable 802.1p COS values on this port channel. The default value
is enabled.
Trust IP DSCP Select this option to enable IP DSCP values on this port channel. The default value is
enabled.
Trust ND Requests Select the check box to enable neighbor discovery (ND) request trust on this port
channel (neighbor discovery requests received on this port are considered trusted).
Neighbor discovery allows the discovery of an adjacent device’s MAC addresses,
similar to Address Resolution Protocol (ARP) on Ethernet in IPv4. The default value is
disabled.
Trust DHCPv6 Responses Select the check box to enable DHCPv6 trust. If enabled, only DHCPv6 responses are
trusted and forwarded on this port channel, and a DHCPv6 server can be connected only
to a trusted port. The default value is enabled.
ND header Mismatch
Validation
Select the check box to enable a mismatch check for the source MAC in both the ND
header and link layer option. The default value is disabled.
RA Guard Select this option to allow router advertisements or IPv6 redirects from this port. Router
advertisements are periodically sent to hosts or sends in response to solicitation
requests. The advertisement includes IPv6 prefixes and other subnet and host
information.This setting is enabled by default.
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