Hi guys

Regarding Lab 3 in Workbook II:

Task 3.2 states: "Configure MD5 authentication for the link between R7 and
R8 with password cisco".

The Solution Guide provides the correct solution, but has an additional
comment which I do not understand -

"Verify with show ip ospf interface. Look carefully at the last few lines.
Key ID is 0, which is a null key".

--------------------------------------------------------------------
R8# show ip ospf int
Serial0/0/0 is up, line protocol is up
 Internet address 110.99.78.8/24, Area 100
Process ID 1, Router ID 110.99.8.8, Network Type POINT_TO_POINT, Cost: 64
Enabled by interface config, including secondary ip addresses
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
  oob-resync timeout 40
  Hello due in 00:00:02
Supports link-local signalling (LLS)
Index 1/1, flood queue length 0
Next 0x0(0) / 0x0(0)
Last flood scan length is 1, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 1, Adjacent neighbor count is 1
  Adjacent with neighbor 110.99.7.7
Suppress hello for 0 neighbor(s)
Message digest authentication enabled
  Youngest key id is 1
R8#
R8#
--------------------------------------------------------------------

The Key ID in the output is 1, in fact, it is not possible to configure a
key ID of 0 with MD5 authentication:

R7(config-if)#ip ospf message-digest-key ?
  <1-255>  Key ID

So what is the solution guide referring to here? Is it a typo, or is my puny
brain missing something? What is a "null key" in this scenario?

One more thing - the "Initial Config" of R9 is really the "Final Config". It
has the MLPPP with multicast routing and everything. Can you please correct
this, and update the downloadable fileset to include the correct Initial
Config for R9. Thanks...

Atle Hardarson
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