December 2006
Intermediate to advanced
1188 pages
72h 8m
English
Content preview from Cisco IOS Cookbook, 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Configuring DHCP for IPv6
Problem
You want to use the DHCP services built into IOS for distributing IPv6 address information.
Solution
Just as you can configure a router to act as a DHCP server for IPv4 addresses, Cisco’s IOS also includes an IPv6 DHCP server function:
Router1#configure terminalEnter configuration commands, one per line. End with CNTL/Z. Router1(config)#ipv6 dhcp databaseRouter1(config)#flash:/DHCPv6-dbipv6 local poolRouter1(config)#VLAN10-pool AAAA:1::/48 64ipv6 local poolRouter1(config)#VLAN11-pool AAAA:11::/48 64ipv6 dhcp poolRouter1(config-dhcp)#DHCPv6POOLprefix-delegationRouter1(config-dhcp)#AAAA:1::23F6:33BA/64 00030001000E84244E70prefix-delegation poolRouter1(config-dhcp)#VLAN10-pooldns-serverRouter1(config-dhcp)#AAAA:1::19domain-nameRouter1(config-dhcp)#oreilly.comexitRouter1(config)#interfaceRouter1(config-if)#FastEthernet0/0ipv6 addressRouter1(config-if)#AAAA:1::1/64ipv6 addressFE80::1link-localRouter1(config-if)#ipv6 nd managed-config-flagRouter1(config-if)#ipv6 nd other-config-flagRouter1(config-if)#ipv6 dhcp serverDHCPv6POOLrapid-commit preference1allow-hintRouter1(config-if)#exitRouter1(config)#endRouter1#
Discussion
DHCP is currently available only on certain higher end routers. The rationale is probably that DHCP for IPv6 will be used primarily for WAN or wireless links in service provider networks, and that customers will continue to use IPv4 internally. However, experience with IPv4 shows that most large networks prefer ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.