Brocade Communications Systems 5600 Reference Manual page 75

If the router-advert node of the configuration tree is missing, router advertisements are not sent. In
addition, if IPv6 forwarding is disabled either globally (by using the system ipv6 disable-forwarding
command) or on the interface (by using the interfaces openvpn vtunx ipv6 disable-forwarding
command), RA are not sent.
Most RA parameters are required by either the Neighbor Discovery (ND) protocol or the Stateless
Address Autoconfiguration (SLAAC) protocol. These parameters are used both locally for the IPv6
implementation and become part of the RA messages sent to hosts on the network so that they can be
configured appropriately.
Use the set form of this command to create the router-advert configuration node and begin to send
RA.
Use the delete form of this command to remove the router-advert configuration node and stop sending
RA.
Use the show form of this command to view RA configuration.
Brocade 5600 vRouter OpenVPN Reference Guide
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OpenVPN Commands
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