Where is GRE located in DOC CD?

September 24, 2008 at 10:55 am | Posted in Lab tips | Leave a comment

It’s located under

  • Configuration Guide
  • System Management
  • Cisco IOS Interface and Hardware Component Configuration Guide, Release 12.4
  • Part 4: Tunnels

Some common features are “easy to navigate” like Virtual Link, where you know exactly it’s under Routing -> OSPF, or DHCP is under IP addressing Scheme.

GRE location is not obvious. My first thought is that it might be under Routing -> Protocol Independent, or IP Addressing, but both are not correct. For uncommon features like this, I usually stop “search arround” after two or three tries. My approach is go back to the Master Index, and search for keyword, relating to this feature. More specifically

Cisco IOS Master Command List, Release 12.4
Look for one of these commands
– tunnel source
– tunnel destination,
– or tunnel mode

All these commands are located in
Cisco IOS Interface and Hardware Component Command Reference

Now we know that GRE is located under these main topic, and we can go back to the configuration guide, and navigate under this main topic for GRE, as listed at the beginning of this post. Here’s again:

  • Configuration Guide
  • System Management
  • Cisco IOS Interface and Hardware Component Configuration Guide, Release 12.4
  • Part 4: Tunnels

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