Disabling IPv6 Routing

You can disable IP version 6 (IPv6) routing for IS-IS. Disabling IPv6 routing results in the following:

Router does not advertise the NLPID for IPv6 in JUNOS software 0th link-state PDU fragment.
Router does not advertise any IPv6 prefixes in JUNOS software link-state PDUs.
Router does not advertise the NLPID for IPv6 in JUNOS software hello packets.
Router does not advertise any IPv6 addresses in JUNOS software hello packets.
Router does not calculate any IPv6 routes.

To disable IPv6 routing on the router, include the no-ipv6-routing statement:



isis {
no-ipv6-routing;
}

For a list of hierarchy levels at which you can configure this statement, see the statement summary section for this statement.

To re-enable IS-IS, remove the disable statement from the configuration:



[edit protocols]
user@host# delete isis no-ipv6-routing