H3C Technologies H3C S12500 Series Switches User Manual
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Enabling a device to discard IPv6 packets that
contain extension headers
To enable a device to discard IPv6 packets that contain extension headers:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable the device to discard
IPv6 packets that contain
extension headers.
ipv6 option drop enable
Required. 
By default, the device does not 
discard IPv6 packets that contain 
extension headers.
Displaying and maintaining IPv6 basics 
configuration 
Task Command
Remarks
Display the IPv6 FIB entries.
display ipv6 fib [ vpn-instance 
vpn-instance-name ] [ acl6 acl6-number | 
ipv6-prefix ipv6-prefix-name ] [ | { begin | 
exclude | include } regular-expression ] 
Available in any view.
Display the IPv6 FIB entry of a 
specific destination IPv6 address. 
display ipv6 fib [ vpn-instance 
vpn-instance-name ] ipv6-address 
[ prefix-length ] [ | { begin | exclude | include }
regular-expression ]
Available in any view.
Display IPv6 information about 
the interface. 
display ipv6 interface [ interface-type 
[ interface-number ] ] [ brief ] [ | { begin | 
exclude | include } regular-expression ] 
Available in any view.
Display neighbor information (in 
standalone mode). 
display ipv6 neighbors { { ipv6-address | all | 
dynamic | static } [ slot slot-number ] | interface 
interface-type interface-number | vlan vlan-id }
[ verbose ] [ | { begin | exclude | include }
regular-expression ]
Available in any view.
Display neighbor information (in 
IRF mode). 
display ipv6 neighbors { { ipv6-address | all | 
dynamic | static } [ chassis chassis-number slot 
slot-number ] | interface interface-type 
interface-number | vlan vlan-id } [ verbose ] [ |
{ begin | exclude | include } 
regular-expression ] 
Available in any view.
Display the total number of 
neighbor entries meeting the 
specified conditions (in 
standalone mode).
display ipv6 neighbors { { all | dynamic | 
static } [ slot slot-number ] | interface 
interface-type interface-number | vlan vlan-id }
count [ | { begin | exclude | include } 
regular-expression ] 
Available in any view.
