• Configure IPv6 on R5's interface connecting to VLAN 5 using the network 2001:CC1E:X:5::Y/64.
2 Points
Copyright © 2007 Internetwork Expert
www.InternetworkExpert.com
- 134 -
CCIE Routing & Switching Lab Workbook Version 4.0
Lab 6
6.2. RIPng
• Enable RIPng on all interfaces running IPv6.
• Configure R3 to originate a default route to R2 via RIPng.
• R2 should not see any of the specific subnets learned from BB2.
• Do not use a prefix-list to accomplish this.
3 Points
6.3. RIPng
Summarization
• Configure R3 to advertise a single /48 summary representing all of your IPv6 address space to BB2.
• Ensure that all routers through the IPv6 network have reachability to the networks learned from BB2.
2 Points
7. QoS
7.1. Real
Time
Protocol
• VoIP users connected to R4 have been complaining about poor voice quality. After further investigation it has been determined that excessive HTTP traffic being sent over the Frame Relay connection between R3 and R4 is the likely cause.
• In order to resolve this problem ensure that all RTP packets sent over the Frame Relay circuit between R3 and R4 are prioritized.
• Allocate 25% of the bandwidth for these RTP packets.
• This configuration should be done in such a way that it is easy to add additional QoS configuration at a later date.
3 Points
Copyright © 2007 Internetwork Expert
www.InternetworkExpert.com
- 135 -
CCIE Routing & Switching Lab Workbook Version 4.0
Lab 6
7.2. Congestion
Avoidance
• Even after prioritizing RTP packets your users are still having issues with low voice quality. In order to deal with this congestion configure your network so that HTTP traffic is dropped prior to the interface becoming congested.
• This HTTP traffic should not be reserved any bandwidth.
3 Points
8. Security
8.1. BPDU
Filtering
• Recently your managers brought in some outside consultants to perform a security audit of your network. After the audit these consultants have reported that there are unauthorized bridges in VLAN 363 sending DECnet spanning tree BPDUs. Until the source of these BPDUs can be located the network administrator has requested that SW1 and SW2 filter off all DECnet spanning tree BPDUs in VLAN 363.
• Configure your network to accommodate this request.
3 Points
8.2. Traffic
Filtering
• Recent network monitoring has shown a number of unauthorized sources attempting to telnet into SW1. In order to protect SW1 from unauthorized access to have decided to configure R2 to filter telnet traffic going to SW1.
• Configure the network in such a way that hosts must first authenticate to R2 before they are allowed to telnet to SW1.
• These users should authenticate with the username TELNET and the password CISCO.
• Users logging into R2 with the username CLI and password CISCO
should be granted access to R2’s CLI.
3 Points
Copyright © 2007 Internetwork Expert
www.InternetworkExpert.com
- 136 -
CCIE Routing & Switching Lab Workbook Version 4.0
Lab 6
9. System Management
9.1. SNMP
• Configure R3 to be managed via SNMP. R3 will be managed by two separate network management servers.
• The first network management server’s IP address is 191.X.7.100 and second network management server’s IP address is 191.X.77.100.
• The network management servers will be expecting SNMP traps to use community string CISCOTRAP.
• The network management servers will be expecting the RO community string to be CISCORO and the RW community string to be CISCORW.
• Only allow the first network management server to access the RW
community string.
• Allow R3 to be reloaded via SNMP.
3 Points
9.2. RMON
• The network administrator is trying to do preventative maintenance by having R1 and R3 generate a log message whenever the utilization on the HDLC link between them exceeds twice the normal rate.
• The network administrator has determined that the average change of the input octet (ifEntry.10) value for R1 and R3’s HDLC link is 40000 per minute.
• Configure R1 and R3 to generate a log message whenever this value reaches twice the average rate and again when it falls back below the average rate.
• R1 should monitor ‘ifEntry.10.3’ and R3 should monitor ‘ifEntry.10.5’.
• The sampling interval should be every 60 seconds.
• The server to log these events to is 191.X.7.100.
3 Points
Copyright © 2007 Internetwork Expert
www.InternetworkExpert.com
- 137 -
CCIE Routing & Switching Lab Workbook Version 4.0
Lab 6
10. IP
Services
10.1. CDP