IPExpert V2 Lab3

2.1 Set MTU

Two ways to set mtu : interface MTU (on physical interface) and protocol mtu (ex ip mtu)

3.2 Ospf authentication

ip ospf authentication-key ipexpert -> Use for cleartext password
ip ospf message-digest-key 1 ipexert -> Use for Md5 password

Verify with show ip ospf int

3.5 RIP

3 routers on a broadcast media, find a way to learn only from one.
My solution :

Passive interface on the BB2 router.
Summary and split horizon disable on the middle router and neighbor command between BB2 & Cat4

Proctor solution
Disable split horizon on Cat4.
Put a default distance of 255 on R8 rip process except for Cat4

-> With the proctor solution routes are learn from Cat4 (metric = 2) but the next-hop is still BB2


4.1 BGP

Forgot the peering between cat2 & cat3 on same AS, not explicitly said but mandatory inside as !!

6.2 Logging

The only purpose of the list of the message to syslog was to define the trap error level.

7.1 IPv6

On Catalyst, when ipv6 is used you should configer an SDM template to support it :

sdm prefer dual-ipv4-and-ipv6 default
sdm prefer dual default

As for Ipv4, it could be necessary to configure ipv6 mtu-ignore if ospf adjacency stuck in Extart. (it disable the auto detection of the mtu of the peer)

8.4 DSCP Rewrite

My solution : MQC based
Proctor solution : dscp-mutation map that rewrite all dscp to AF32, apply it to interface with

mls qos dscpèmutation ResetAF32

9.3 Zone Based firewall

No time to finish.