Let’s check out an IPv6 header.

11 Jan

CCIE or Null!

I touched on the IPv6 addressing scheme a few weeks ago before and I wanted to continue the trend into a few more IPv6 related posts but that last IPS post spiked my interest, so I had to publish that one.  Now we know the addressing scheme is different in IPv6 but what about the packet format? Obviously the packet headers will be larger because the source and destination addresses within that header are now 128 bits but let’s see what else we have in the IPv6 header:

IPv6 Packet Header

Now that doesn’t look too intimidating right? I think that looks a little simpler compared to the IPv4 packet header. Now let’s see what we got going on here:

  • Version: This field is in an IPv4 packet and simply tells us what version of IP we are running. Since this is an IPv6 packet it’s going to have a value of 6
  • Traffic Class

View original post 375 more words


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