Ccna routing and Switching Complete Study Guide

Temporary IPv6 Address. . . . . . : 2001:db8:3c4d:3:2f33:44dd:211:1c3d

   Link-local IPv6 Address . . . . . : fe80::ac3b:2ef:1823:8938%11

   IPv4 Address. . . . . . . . . . . : 10.1.1.10

   Subnet Mask . . . . . . . . . . . : 255.255.255.0

   

Default Gateway . . . . . . . . . : Fe80::21a:6dff:fe37:a44e%11

      10.1.1.1

It’s important to understand that the default gateway will be the link-local address of the 

router, and in this case, we can see that the address the host learned is truly the link-local 

address of the Fa0/0 interface of R1. The 

%11

 is just used to identify an interface and isn’t 

used as part of the IPv6 address.

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Chapter 20 

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  Troubleshooting IP, IPv6, and VLANs

Temporary IPv6 Addresses

The temporary IPv6 address, listed under the unicast IPv6 address as 2001:db8:3c4d:3:2f33: 

44dd:211:1c3d, was created by Windows to provide privacy from the EUI-64 format. This 

creates a global address for your host without using your MAC address by generating a 

random number for the interface and hashing it; the result is then appended to the /64 

prefix from the router. You can disable this feature with the following commands:

netsh interface ipv6 set global randomizeidentifiers=disabled

netsh interface ipv6 set privacy state-disabled

In addition to the 

ipconfig

 command, we can use the command 

netsh interface ipv6 

show neighbor

 to verify our default gateway address:

C:\Users\Todd Lammle>