IPv6 Configuration Guide K/KA/KB.15.15

Example 12 Suppressing the inclusion of RDNSS and SNSSL in outgoing RAs globally
HP Switch(config)# ipv6 nd suppress-ra-dns
IP interface configuration
This example shows the command that suppresses the inclusion of RDNSS and SNSSL in outgoing
Router Advertisements for an IP interface. The command is executed in VLAN context.
Example 13 Suppressing the inclusion of RDNSS and SNSSL in outgoing RAs for an IP interface
HP Switch(config)# vlan 2
HP Switch(vlan-2)# ipv6 nd ra suppress-dns
Displaying the configuration
The following example is the output showing which interfaces has RA-DNS suppressed.
Example 14 Displaying the configuration
HP Switch(config)# show ipv6 nd ra
IPv6 Router Advertisement Configuration
Global RA Suppress: : No
Global RA-DNS Suppress : Yes
Global Hop Limit : 64
IPv6 Unicast Routing : Disabled
Suppress Suppress Interval Lifetime Mngd Other RCH Time Interval Hop
Interface RA RA-DNS Min/Max (sec) Flag Flag (ms) (ms) Lim
--------- -------- -------- -------- -------- ---- ----- -------- -------- ---
vlan-1 No No 200/600 1800 No No 0 0 64
vlan-2 No Yes 200/600 1800 No No 0 0 64
vlan-3 No No 200/600 1800 No No 0 0 64
Example 15 Example shows the output from running-config command with router advertisement
DNS suppressed
HP Switch(config)# show running-config
Running configuration:
; J8698A Configuration Editor; Created on release #K.15.10.XXXX
; Ver #03:01.1f.ef:f2
Hostname “HP Switch”
module 1 type J9550A
ipv6 nd suppress-ra-dns
vlan 1
name “DEFAULT_VLAN”
untagged A1-A24
ip address dhcp-bootp
exit
vlan 2
name “vlan2”
no ip address
ipv6 nd ra suppress-dns
exit
spanning-tree
Router solicitations
When an IPv6 interface becomes operational on the switch, a router solicitation is automatically
sent to trigger an RA from any IPv6 routers reachable on the VLAN. (Router solicitations are sent
to the All-Routers multicast address; ff02::2. If an RA is not received within one second of sending
34 IPv6 Addressing Configuration