Robert BeckettServices Technical LeaderNovember 14, 2012© 2010 Cisco and/or its affiliates. All rights reserved.   Cisco C...
• Network backbone – routers, switches, etc.• Terminal servers, telnet, ssh, VNC, RDP, etc.• File servers, VMware, etc.• S...
• Network backbone – routers, switches, etc.• Terminal servers, telnet, ssh, VNC, RDP, etc.• File servers – VMware, etc.• ...
Brussels                    San Jose                                                                               Beijing...
• Support more TAC IPv6 cases -- recreates• Be ready for the World IPv6 Launch Day: June 6th, 2012• Greater Internet Addre...
• Dual stack• Direct vs. 6in4 Tunnel• RIPv6 / EIGRPv6 / OSPFv3 / IS-IS• Only IS-IS is truly integrated, but this advantage...
• Assigned /56 via IP transported via direct or GRE tunnel• Full mesh tunnels, or home all tunnels to single router or to ...
ipv6 unicast-routing!interface Tunnel0 description for 2001:db8:1bf:400::/56 no ip address ipv6 address 2001:DB8:1BF:400::...
interface Vlan11 description BACKBONE ETHERNET SWITCH VLAN ipv6 address 2001:DB8:1BF:401::1/64 ipv6 rip v6 enable ipv6 rip...
ipv6 unicast-routing!interface GigabitEthernet0/0 ipv6 address 2001:DB8:1BF:401::11/64 ipv6 rip v6 enable!interface Gigabi...
• Via SLAAC/DHCP – address, subnet, gateway, DNS if availableinterface x/y ipv6 address autoconfig• Staticinterface x/y ip...
• Some HW may need upgrading• Likely some SW needs upgrading• Cisco IPv6 feature support – EIGRP in SXI, IPv6 in ipbase, e...
• In IPv6, subnet size worries gone• DHCP vs. static range concerns gone – basically no chance of       IPv6 address colli...
• Configure IPv6 addresses on more devices by default for IPv6       management – telnet, ssh, snmp, etc.• Move from SLAAC...
• Cisco Support Community:       https://supportforums.cisco.com/community/netpro/network-       infrastructure/ipv6-trans...
Thank you.
© 2010 Cisco and/or its affiliates. All rights reserved.   Cisco Confidential   17
• Discover Layer 3 device on local subnet• Address assignment            Stateful (DHCP) vs Stateless Address assignment (...
Centralized server performs all                            Client dynamically takes onaddressing tasks                    ...
DHCPv6 server will allocate one or                         Two messages are usedmore IPv6 addresses or prefixes to        ...
ipv6 dhcp pool IPV6_DHCPPOOL    address prefix 2001:DB8:1000::/64 lifetime infinite infinite    link-address 2001:DB8:1000...
ipv6 dhcp pool IPV6_DHCPPOOL    dns-server 2001:DB8:1000::4222    domain-name cisco.com!interface Ethernet0/0    ipv6 addr...
• IPv6’s larger address space enables:            Use of link layer addresses inside the address space via eui-64 format  ...
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Deploying IPv6 in Cisco's Labs by Robert Beckett at gogoNET LIVE! 3 IPv6 Conference

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gogo6 IPv6 Video Series. Event, presentation and speaker details below:

EVENT
gogoNET LIVE! 3: Enterprise wide Migration. http://gogonetlive.com
November 12 – 14, 2012 at San Jose State University, California
Agenda: http://gogonetlive.com/4105/gogonetlive3-agenda.asp

PRESENTATION
Deploying IPv6 in Cisco's Labs
Presentation video: http://www.gogo6.com/video/deploying-ipv6-in-cisco-s-labs-by-robert-beckett-at-gogonet-live
Interview video: http://www.gogo6.com/video/interview-with-robert-beckett-at-gogonet-live-3-ipv6-conference

SPEAKER
Robert Beckett - Services Technical Leader, Cisco Systems
Bio/Profile: http://www.gogo6.com/profile/RobertBeckett

MORE
Learn more about IPv6 on the gogoNET social network
http://www.gogo6.com
Get free IPv6 connectivity with Freenet6
http://www.gogo6.com/Freenet6
Subscribe to the gogo6 IPv6 Channel on YouTube
http://www.youtube.com/subscription_center?add_user=gogo6videos
Follow gogo6 on Twitter
http://twitter.com/gogo6inc
Like gogo6 on Facebook
http://www.facebook.com/pages/IPv6-products-community-and-services-gogo6/161626696777

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Deploying IPv6 in Cisco's Labs by Robert Beckett at gogoNET LIVE! 3 IPv6 Conference

  1. 1. Robert BeckettServices Technical LeaderNovember 14, 2012© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 1
  2. 2. • Network backbone – routers, switches, etc.• Terminal servers, telnet, ssh, VNC, RDP, etc.• File servers, VMware, etc.• Services – DNS, DHCP, AAA, NTP, SNMP, etc.• NMS – vendor and home-grown• IP Phones, Wireless• Power management, Room Access, Surveillance• Thermostat, Cooling, Fire detectors, Lights …© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 2
  3. 3. • Network backbone – routers, switches, etc.• Terminal servers, telnet, ssh, VNC, RDP, etc.• File servers – VMware, etc.• Enable IPv6 connectivity within lab• Enable IPv6 connectivity between labs• Enable IPv6 connectivity to Internet where needed• IPv6 available for devices that need/want it• Groundwork for future© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 3
  4. 4. Brussels San Jose Beijing BXB RCDN Tokyo RTP Bangalore Sydney Strategy: combine the labs into one unified, scaled, virtual system with common architecture and processes: One lab service “cloud.” US & Canada European Markets Emerging Markets Asia Pacific/Japan© 2010 Cisco and/or its affiliates. All rights reserved. 4 Cisco Confidential 4
  5. 5. • Support more TAC IPv6 cases -- recreates• Be ready for the World IPv6 Launch Day: June 6th, 2012• Greater Internet Addressability in lieu of very limited public IPv4 address space• Greater Cisco Addressability in lieu of limited RFC1918 IPv4 Address Availability© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 5
  6. 6. • Dual stack• Direct vs. 6in4 Tunnel• RIPv6 / EIGRPv6 / OSPFv3 / IS-IS• Only IS-IS is truly integrated, but this advantage is not too useful in a typical lab that has on the order of dozens of pods and hundreds of subnets• We traditionally used EIGRP inside the lab, but RIPv6 is what Cisco IT uses for the 6in4 tunnels it creates© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 6
  7. 7. • Assigned /56 via IP transported via direct or GRE tunnel• Full mesh tunnels, or home all tunnels to single router or to where IT tells you• In our case, not a terribly strict hierarchy – mix of main gateway, intermediate gateways, L2/L3 switches, etc.• Route IPv6 on all routers and L3 switches• No need to worry about L2, except as hosts for mgmt• Lab backbone via RIP for now – because of IT and desire to keep things simple, migrate to OSPF or EIGRP later© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 7
  8. 8. ipv6 unicast-routing!interface Tunnel0 description for 2001:db8:1bf:400::/56 no ip address ipv6 address 2001:DB8:1BF:400::2/64 tunnel source Loopback0 tunnel destination 10.27.90.77 tunnel mode ipv6ip!interface Loopback0 ip address 131.108.84.1 255.255.255.255© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 8
  9. 9. interface Vlan11 description BACKBONE ETHERNET SWITCH VLAN ipv6 address 2001:DB8:1BF:401::1/64 ipv6 rip v6 enable ipv6 rip v6 default-information originate!interface Vlan240ipv6 address 2001:DB8:1BF:4F0::1/64!ipv6 route ::/0 Tunnel0ipv6 router rip v6© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 9
  10. 10. ipv6 unicast-routing!interface GigabitEthernet0/0 ipv6 address 2001:DB8:1BF:401::11/64 ipv6 rip v6 enable!interface GigabitEthernet0/1.54 encapsulation dot1Q 54 ipv6 address 2001:DB8:1BF:436::1/64!ipv6 router rip v6© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 10
  11. 11. • Via SLAAC/DHCP – address, subnet, gateway, DNS if availableinterface x/y ipv6 address autoconfig• Staticinterface x/y ipv6 address 2001:DB8:1BF:436::88/64!ipv6 route ::/0 2001:DB8:1BF:436::1ip name server X:X:X:X::Xip domain name abc.org© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 11
  12. 12. • Some HW may need upgrading• Likely some SW needs upgrading• Cisco IPv6 feature support – EIGRP in SXI, IPv6 in ipbase, etc.• Lab topology has “evolved” over so many years• LARGE lab• Little manpower for lab architecture• IT infra not all IPv6 enabled; need some 6in4 tunnels• Labeling! IPv6 subnets are longer and devices with more and more ports have less empty space to write them….© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 12
  13. 13. • In IPv6, subnet size worries gone• DHCP vs. static range concerns gone – basically no chance of IPv6 address collision• Switch feature -- Broadcast suppression no longer needed, multicast suppression still useful• Subnet manager … IT / CALO© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 13
  14. 14. • Configure IPv6 addresses on more devices by default for IPv6 management – telnet, ssh, snmp, etc.• Move from SLAAC to Stateless DHCPv6 and Stateful DHCPv6• Migrate away from non-routable IPv4 address space in favor of corporate routable IPv6 address space• Get IPv6 on our DMZ network© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 14
  15. 15. • Cisco Support Community: https://supportforums.cisco.com/community/netpro/network- infrastructure/ipv6-transition• CCO IPv6 Main Page www.cisco.com/go/ipv6© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 15
  16. 16. Thank you.
  17. 17. © 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 17
  18. 18. • Discover Layer 3 device on local subnet• Address assignment Stateful (DHCP) vs Stateless Address assignment (SLAAC)Host Address Is:Prefix Received+Link-Layer Address Server sends Network-Type Information Prefix Default Route© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 18
  19. 19. Centralized server performs all Client dynamically takes onaddressing tasks addressing tasks • Assigns IP addresses • Chooses own IP address • Keeps track of Client to address EUI-64 mapping • DAD used to avoid address • Provides additional network duplication information • Additional network information DNS server not provided by default Default gateway Provided by supporting serverExamples of Stateful Address Examples of Stateless Addressprotocols protocols • DHCP • SLAAC (StateLess Address AutoConfiguration)© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 19
  20. 20. DHCPv6 server will allocate one or Two messages are usedmore IPv6 addresses or prefixes to • INFORMATION-REQUESTa DHCPv6 client • REPLYDHCP options can be provided to DHCPv6 server only providesclient configuration information • DNS server • DNS server • Domain name • Domain nameDHCPv6 server maintains state Assumption: • Stores the leased IPv6 addresses and lease details in • Client will acquire IPv6 address its database through other means (SLAAC)© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 20
  21. 21. ipv6 dhcp pool IPV6_DHCPPOOL address prefix 2001:DB8:1000::/64 lifetime infinite infinite link-address 2001:DB8:1000::1/64 dns-server 2001:DB8:1000::4222 domain-name cisco.com!interface Ethernet0/0 ipv6 address 2001:DB8:1000::1/64 ipv6 enable ipv6 nd ra suppress ipv6 dhcp server IPV6_DHCPPOOL• RA can be disabled because DHCP takes care of address assignment© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 21
  22. 22. ipv6 dhcp pool IPV6_DHCPPOOL dns-server 2001:DB8:1000::4222 domain-name cisco.com!interface Ethernet0/0 ipv6 address 2001:DB8:1000::1/64 ipv6 enable ipv6 nd other-config-flag ipv6 dhcp server IPV6_DHCPPOOL• By default, SLAAC only allows the client to configure an IP address and default route, no additional information• SLAAC must be configured to use other-config-flag options in order to provide DNS and domain name information via the DHCP config This information is still provided through SLAAC, just configured via DHCP© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 22
  23. 23. • IPv6’s larger address space enables: Use of link layer addresses inside the address space via eui-64 format Dynamic client address autoconfiguration with “no collisions” (DAD) Plug and play support© 2010 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 23

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