On Thu, Jun 18, 2009 at 06:06:27PM +0100, Daniel P. Berrange wrote:
On Thu, Jun 18, 2009 at 04:06:40PM +0200, Daniel Veillard wrote:
<define name="interface-addr-ipv6"> <element name="addresses"> <attribute name="family"> <value>ipv6</value> </attribute> <choice> <ref name="interface-addr-static"/> <ref name="interface-addr-dhcp"/> </choice> </element> </define>
same for IPv6
Not quite - IPv6 needs to allow for more options
- static - fully manual setup - autoconf - auto assign addresses/routes. Assume DNS etc via dhcpv4 or manual - autoconf + statless dhcp - auto assign addresses/routes. DNS etc via dhcpv6 - statefull dhcp - everything via dhcpv6
Of course there's also the need for a 'none' case. My proposal for <addresses family=''> element intended that to be implied.
Check out this preso for an overview if you dare.
http://lacnic.net/documentos/lacnicxi/presentaciones/autoconf_and_dhcpv6.pdf
In all cases we need to include <ip> tags to show the manual, or automatically configured addresses/routes.
Some examples might help understand all these options 1. no IPv6 sysconfig file: IPV6=no XML ...no <addresses> element for IPv6 2. IPv6 link local only, no autoconf, no static address, no dhcp IPV6=yes IPV6_AUTOCONF=no DHCPV6=no XML to define it <addresses family='ipv6'/> XML when running <addresses family='ipv6'> <ip address="fe80::215:58ff:fe6e:5" prefix="64"/> (the link local addr) </addresses> 3. IPv6 link local, no autoconf, one static address, no dhcp IPV6=yes IPV6_AUTOCONF=no DHCPV6=no IPV6ADDR="3ffe:ffff:0:5::1" XML to define it <addresses family='ipv6'> <ip address="3ffe:ffff:0:5::1" prefix="128"/> (the static addr) </addresses> XML when running <addresses family='ipv6'> <ip address="fe80::215:58ff:fe6e:5" prefix="64"/> (the link local addr) <ip address="3ffe:ffff:0:5::1" prefix="128"/> (the static addr) </addresses> 4. IPv6 link local, autoconf, no static address, no dhcp IPV6=yes IPV6_AUTOCONF=yes DHCPV6=no XML to define it <addresses family='ipv6'> <autoconf/> </addresses> XML when running <addresses family='ipv6'> <autoconf/> <ip address="fe80::215:58ff:fe6e:5" prefix="64"/> (the link local addr) <ip address="3ffe:1234:0:5::6" prefix="128"/> (the automatic addr) </addresses> 5. IPv6 link local, autoconf, no static address, dhcp for services IPV6=yes IPV6_AUTOCONF=yes DHCPV6=yes XML to define it <addresses family='ipv6'> <autoconf/> <dhcp/> </addresses> XML when running <addresses family='ipv6'> <autoconf/> <dhcp/> <ip address="fe80::215:58ff:fe6e:5" prefix="64"/> (the link local addr) <ip address="3ffe:1234:0:5::6" prefix="128"/> (the automatic addr) </addresses> 6. IPv6 link local, no autoconf, no static address, dhcp for everything IPV6=yes IPV6_AUTOCONF=no DHCPV6=yes XML to define it <addresses family='ipv6'> <dhcp/> </addresses> XML when running <addresses family='ipv6'> <autoconf/> <dhcp/> <ip address="fe80::215:58ff:fe6e:5" prefix="64"/> (the link local addr) <ip address="3ffe:7891:0:5::6" prefix="128"/> (the dhcp addr) </addresses> It may be aso possible to list extra static addresses, even while autoconf and/or dhcp are enabled. Can't remember off hand. Basically every single combo you can think of is probably needed. For brevity, i left out routes here. You can more or less asume zero or more routes are needed in all these scenarios. Regards, Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|