Forming the Aggregate Based on a Subset of Specific Routes

Having control over which individual prefixes form the aggregate is very useful in determining which attributes the aggregate will carry. In the previous section, if you could exclude prefix 192.68.11.0/24 from being part of the prefixes that form the aggregate, the aggregate would not inherit the no-export community attribute. The advertise map is yet another form of a route map that lets you form the aggregated route based on a limited selection of the more-specific routes...

IOS XR Basic EIGRPv6 Configuration On PE: Example

The following example shows how to configure EIGRP with a policy that filters incoming routes. This is a typical configuration for a router that has just one neighbor, but advertises other connected subnets.   router eigrp 100    vrf ABC     address-family ipv6       router-id 10.10.9.4       log-neighbor-changes       log-neighbor-warnings    &nbs..

Enhanced IGRP and Distribute-List

A distribution list is used to block routing information from being sent or received. This list can be applied on a per-routing protocol basis or a per-interface basis. When applied on a per-routing protocol basis, the distribution list will block all routing updates that are exiting or entering the protocol that do not pass the access-list. For example, consider this code: router eigrp 1 network 10.0.0.0 distribute-list 1 in access-list 1 deny 10.10.10.0 0.0.0.255 a..

Goal of This Lab

This lab should assist you in your final preparation for the CCIE Security lab exam. Sample solutions are provided here, but you need to research other various solutions on your own. Feel free to modify the questions to suit any design scenario and discover new IOS commands by using the Cisco Universe CD-ROM. This lab is not the only tool you should use; rather, it is provided here to demonstrate the minimum level of difficulty you will encounter when attempting the CCIE Sec..

Deploying VLANs

 To implement VLANs, you must consider the number of VLANs you need and how best to place them. As usual, the number of VLANs depends on traffic patterns, application types, segmentation of common workgroups, and network-management requirements. An important factor to consider is the relationship between VLANs and the IP addressing schemes used. Cisco recommends a one-to-one correspondence between VLANs and IP subnets. This recommendation means that if a subnet with a 24..