We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byJustus Pound
Modified over 2 years ago
IPv6 and Tunnels
IPv6 and Tunnels in the same presentation? The work for both was done around the same time Most IPv6 traffic at the time was still tunneled (and likely still is at most sites) 2
IPv6 It’s turned on like you’d expect it to be and you can’t turn it off Not overly exciting – Different addresses in your logs Lots of strange edge cases supported 3
Tunnels Everyone has tunnels – Even if you don’t know it Most tunnels are for locally enabling IPv6 on end hosts 4
Tunnel Decapsulators Teredo IP-in-IP (includes 6to4) AYIYA GTPv1 SOCKS – Yes, SOCKS is a proxy protocol but internally we treat it similar to a tunnel 5
Tunnel Recursion Tunnels in tunnels 6
Forensic Logs - tunnel.log 7 ts1232039480.93499 uidYQCEFJ6DEh1 id188.8.131.525036184.108.40.20665123 tunnel_typeTunnel::TEREDO actionTunnel::DISCOVER ts1232039548.03295 uidYQCEFJ6DEh1 id220.127.116.11503618.104.22.16865123 tunnel_typeTunnel::TEREDO actionTunnel::CLOSE
Forensic Logs - conn.log 8 ts1232039480.93499 uidYQCEFJ6DEh1 id22.214.171.1245036126.96.36.19965123 protoudp serviceteredo duration66.901215 orig_bytes100565 resp_bytes23818
Forensic Logs - conn.log 9 ts1232039480.93499 uidmYlaTkpbEY9 id 2001:0:4137:9e50:3c6e:3b46:9c0e:a91251232 2001:0:4137:9e50:414:19c:5b94:3ca221050 protoudp service- duration66.901215 orig_bytes85545 resp_bytes10386 tunnel_parentsYQCEFJ6DEh1
Summary Awareness of IPv6 and Tunnels in Bro Normally don’t need to worry about them 10
Routing Routing in an internetwork is the process of directing the transmission of data across two connected networks. Bridges seem to do this function.
Todd Tannenbaum Condor Team GCB Tutorial OGF 2007.
IPv6 View video on IPv6 compared to IPv4 https://www.youtube.com/watch?v=vPeOk1f SHMU.
The Bro Network Security Monitor Overview and Recent Developments.
1 IPv6 and IPv4 Interoperation and Transition Tony Hain co-chair IETF ngtrans WG
IPv4 - IPv6 Integration and Coexistence Strategies Warakorn Sae-Tang Network Specialist Professional Service Department A Subsidiary.
1 Features of IPv6 Larger Address Extended Address Hierarchy Flexible Header Format Improved Options Provision For Protocol Extension Support for Auto-configuration.
Netprog: IPv61 IPv6 Refs: Chapter 10, Appendix A.
Chapter 6-7 IPv6 Addressing. IPv6 IP version 6 (IPv6) is the proposed solution for expanding the possible number of users on the Internet. IPv6 is also.
IPv6. Major goals 1.support billions of hosts, even with inefficient address space allocation. 2.reduce the size of the routing tables. 3.simplify the.
Project by: Palak Baid (pb2358) Gaurav Pandey (gip2103) Guided by: Jong Yul Kim.
Socket Programming with IPv6. Why IPv6? Addressing and routing scalability Address space exhaustion Host autoconfiguration QoS of flow using flowlabel.
Understanding Internet Protocol
PPPoE Last Update Copyright Kenneth M. Chipps Ph.D. 1.
ITIS 1210 Introduction to Web-Based Information Systems Chapter 44 How Firewalls Work How Firewalls Work.
Weakening Aggregated Traffic of DHCP Discover Messages draft-yang-sunset4-weaken-dhcp-00 Tianle Yang, Lianyuan Li, Qiongfang Ma China Mobile
An Overview of IPv6 Transition/Co-existence Technologies Fernando Gont UTN/FRH LACNOG 2010 Sao Paulo, Brazil, October 19-22, 2010.
IP addressSubnet mask AND
King of Limitations Present by: Ao-Jan Su. Accuracy? Accuracy depends on the distance of end hosts and their authoritative name servers. Not true for.
© 2017 SlidePlayer.com Inc. All rights reserved.