IPExpert V3 Lab3

2.3 OSPF

- On Area 2223, with R7-BB2-BB3 on a broadcast network, in preceding task we prevent any layer2 BB2 to BB3 communication we must then be sure that R7 is the DR
-On R6 attached to multiple areas a virtual-link is needed to an area 0 router, even if others areas are connected to area 0.

3.1 BGP

This task is about distributing connected interface with minimal conf and appearing as IGP.
Network is a solution but doesn't use minimal conf :
redistribute connected with a route-map setting origin as igp

4.1 Inter-domain Multicast

Multiple PIM domains are interconnected via MSDP.
In order interdomain multicast work, I activated pim sparse-mode along the path between inter-domain.
Proctor didn't do that, He advertise the multicast sources on a BGP multicast adress family.

5.1 Filter PIM and BGP active-passive

I only used ACL to filter PIM and to force the way BGP is initiated between 2 routers. Other solution :
- ip pim neighbor-filter ACL
-router bgp xXX
neighbor x.x.x.x transport connection-mode passive

6.2 Netflow

Forgot the ip flow ingress on the interfaces.

IPExpert V3 Lab2

Task 1.3 : MST -3

Question was about minimal impact STP : means minimal instance.
But Vlan 1314 is only on one link that could be blocked if one instance because not connected to the root. Assuming Cat3 could assist Cat2 in root role, we'll use an instance with Cat3 as root for vlan 1314.

Task 2.4 : EIGRP

The goal was to summarize without Null route.
I used static with redistribute.
Proctor solution is used summary-address command with distance of 255 wich prevent IOS from installing a Null0.