EIGRP: Stub Routers and Query Packets

Stub routers handle Query packets the following ways:

  • Originating Query Packets are not modified in any way, entering active and sending Queries are the same.
  • Processing received Query packets, depends on the network that was queried.  If the network queried is allowed to be advertised by the receiving router, the router will process the Query normally and send back an appropriate Reply.   If the queried network is one that the router knows about but is not allowed to advertise, it will be processed in the usual way but the reply will always indicate infinite distance, regardless of what the Stub router truly knows about the network.  Receiving a query for an unknown network will immediately cause the router to Reply with an infinite distance.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s