B-3 Discovering IPv6 with Wireshark - Sharkfest
B-3 Discovering IPv6 with Wireshark - Sharkfest B-3 Discovering IPv6 with Wireshark - Sharkfest
IPv6 Transition TechnologiesTeredo Tunnel• When starting, a Windows-based computer using Teredo resolves theIPv4 address of the Teredo server teredo.ipv6.microsoft.com• By the Router solicitation/advertisement dialog through Teredo, theclient receives a valid IPv6 prefix• When activated, the Teredo client contacts Teredo server to obtaininformation such as the type of NAT that the client is behind• If the client has only link-local or Teredo IPV6 addresses assigned, thenthe DNS Client will send only queries for A records• The client needs at least one valid IPv6 address configured (may bemanually) in order to query for AAAA records• Windows Vista Client computers will always use IPV6 over IPV4• A default route may have to be configured on Teredo interface:netsh interface ipv6 add route ::/0 14 Teredo Interface ID© Leutert NetServices SHARKFEST ‘11 | Stanford University | June 13–16, 2011 30
IPv6 Transition TechnologiesTeredo commands & settings• netsh interface teredo show state• netsh interface teredo set state disabled• netsh interface teredo set state client• netsh interface teredo set state enterpriseclient• netsh int ipv6 set teredo client teredo.remlab.net• netsh int ipv6 set teredo client teredo.ipv6.microsoft.com• netsh interface ipv6 show address• netsh interface ipv6 add address "Local Area Connection 2" fd00:0:0:1::1• netsh interface ipv6 add route ::/0 14• Windows firewall must be activated to enable Teredo!© Leutert NetServices SHARKFEST ‘11 | Stanford University | June 13–16, 2011 31
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- Page 3 and 4: Address AutoconfigurationIPv6 State
- Page 5 and 6: Address AutoconfigurationSolicited
- Page 7 and 8: IPv6 Interfaces• In Windows Vista
- Page 9 and 10: Agenda• Address Autoconfiguration
- Page 11 and 12: ICMPv6 MessagesErrorand ControlMess
- Page 13 and 14: Agenda• Address Autoconfiguration
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- Page 19 and 20: IPv6 Transition TechnologiesISATAP
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<strong>IPv6</strong> Transition TechnologiesTeredo commands & settings• netsh interface teredo show state• netsh interface teredo set state disabled• netsh interface teredo set state client• netsh interface teredo set state enterpriseclient• netsh int ipv6 set teredo client teredo.remlab.net• netsh int ipv6 set teredo client teredo.ipv6.microsoft.com• netsh interface ipv6 show address• netsh interface ipv6 add address "Local Area Connection 2" fd00:0:0:1::1• netsh interface ipv6 add route ::/0 14• Windows firewall must be activated to enable Teredo!© Leutert NetServices SHARKFEST ‘11 | Stanford University | June 13–16, 2011 31
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