Ipv6 and tunnels
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IPv6 and Tunnels PowerPoint PPT Presentation


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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

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IPv6 and Tunnels

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Ipv6 and tunnels

IPv6 and Tunnels


Ipv6 and tunnels in the same presentation

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 and tunnels

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

Tunnels

  • Everyone has tunnels

    • Even if you don’t know it

  • Most tunnels are for locally enabling IPv6 on end hosts

4


Tunnel decapsulators

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

Tunnel Recursion

  • Tunnels in tunnels

6


Forensic logs tunnel log

Forensic Logs - tunnel.log

7


Forensic logs conn log

Forensic Logs - conn.log

8


Forensic logs conn log1

Forensic Logs - conn.log

9


Summary

Summary

  • Awareness of IPv6 and Tunnels in Bro

  • Normally don’t need to worry about them

10


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