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FireBrick 2700 Configuration run-through: Difference between revisions

FireBrick 2700 Configuration run-through (view source)

Revision as of 22:41, 16 February 2011

194 bytes added ,  16 February 2011
→‎Native IPv6
( since release V0.02.039 )
 
Setting 'ra=true' will enable auto-configuration of IPv6 addresses, and of the Default Route.
The previous config will allow your IPv6-enabled clinets to auto-configure an IP address, and default route from the Router Announcements from the FB. To configure IPv6 DNS server addresses ( DNS servers that are to be queried over IPv6 ), then there are a couple of options. Very recent clients may be RFC6106 aware, and be able to recieve DNS server addresses along with the other config in the same Router Announcement from the FB, using the RDNSS option. To enable this, set the ra-dns option to point to your IPv6 Recursive DNS Server ( in this example, I've added a static IPv6 address 2001:8B0:B7:1::2 to my DNS server box, obviously point it to your own! ):
You may also wish to configure IPv6 DNS servers ( DNS servers that are to be queried over IPv6 ).
 
There are a couple of different mechanisms available to push out IPv6 DNS servers, and the FB2700 supports both.
Be sure your DNS server actually responds on it's IPv6 address!
 
The first method is to have the FB include the DNS server addresses as a new option( RDNSS ) in the Router Announcements. ( RFC6106 ).
RFC6106 aware clients are, however, somewhat thin on the ground at the moment.
To enable this, set the 'ra-dns' option to point to your IPv6 Recursive DNS Server.
In this example, I'm pointing it to a DNS server on 2001:8B0:B7:1::2.
 
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Most clients are not currently able to recieve this option.
So we mustcan also use the more traditional method:
Setting the 'O' flag in the RA, telling the client to do DHCPv6 andafter askauto-configuration, and forrequest 'Other' config data, ie DNS.
 
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Now, the FB will set the 'O' flag in the RAs, andcausing your clients willto then query anothera DHCPv6 server for 'Other' ( DNS ) config data. You must provision an external DHCPv6 server in this case.
You must provision an external DHCPv6 server to respond to these queries.
 
The FB can be also be configured to run a mini-DHCPv6 server to respond to these queries by itself, tooeliminating the need for an external DHCPv6 server.
To enable the 'O' flag AND the mini-DHCPv6, set the ra-other option to 'dhcpv6', and also specify the DNS server address to be doled out in the rd-dns option:
 
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