1 / 12

[IP address configuration BCP]

[IP address configuration BCP]. Authors:. Date: 2011-09-18. IPv4: DHCPv4. AP. Discover. Offer. Request. Ack. IPv4: DHCPv4 Rapid Commit. AP. Discover. Ack. IPv4: DHCPv4 optimized. AP. Request. Ack. C onclusion.

willa
Download Presentation

[IP address configuration BCP]

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. [IP address configuration BCP] Authors: Date:2011-09-18 John Doe, Some Company

  2. IPv4: DHCPv4 AP Discover Offer Request Ack John Doe, Some Company

  3. IPv4: DHCPv4 Rapid Commit AP Discover Ack John Doe, Some Company

  4. IPv4: DHCPv4 optimized AP Request Ack John Doe, Some Company

  5. Conclusion • IPv4 address config consists of either 4 message or 2 message exchange. Not all client support rapid commit, therefore, it can not be assumed that a client can complete it within 1 RTT John Doe, Some Company

  6. IPv6 - 1 AP RA has to be secured -either by the AP (not with GTK, that would not prevent hole-196 attacks) -by the router using SeND (RFC3971) Link-up indication Wait for RA for time T RA Send DHCP Discover if no RA received DHCP Discover ... John Doe, Some Company

  7. IPv6 - 2 AP RA has to be secured -either by the AP (not with GTK, that would not prevent hole-196 attacks) -by the router using SeND (RFC3971) Link-up indication RS RA Wait for time T, send DHCP Discover if no RA received within time T DHCP Discover ... John Doe, Some Company

  8. IPv6 - 3 AP RA has to be secured -either by the AP (not with GTK, that would not prevent hole-196 attacks) -by the router using SeND (RFC3971) Link-up indication RS DHCP Discover RA John Doe, Some Company

  9. IPv6 - 4 AP RA has to be secured -either by the AP (not with GTK, that would not prevent hole-196 attacks) -by the router using SeND (RFC3971) Link-up indication RS DHCP Discover RA DHCP Offer ... Slide 9 John Doe, Some Company

  10. IPv6 - 5 AP RA has to be secured -either by the AP (not with GTK, that would not prevent hole-196 attacks) -by the router using SeND (RFC3971) Link-up indication DHCP Discover RA DHCP Offer ... John Doe, Some Company

  11. IPv6 - 6 AP RA has to be secured -either by the AP (not with GTK, that would not prevent hole-196 attacks) -by the router using SeND (RFC3971) Link-up indication DHCP Discover RA/DHCP offer ... John Doe, Some Company

  12. Conclusion • With IPv6, there are many possible combinations for a STA to behave in acquiring its IP address • RAs have to be secured • If ‘pairing’ IP address configuration with authentication is the aim (to reduce the number of messages and the round trips), it has to be carefully designed John Doe, Some Company

More Related