Exam Code: CFG: LAB1、LAB1+、LAB2、LAB2+、LAB3
TS: TS1(5 sets)、TS2(3 sets)
DIAG:DIAG 1~DIAG 8(8 sets)
Certification Provider: Cisco
Certification Exam Name:CCIE Routing and Switching Lab
Update Date: Sep 16,2026

Problem:Server 1 can not get ip address.
Materials:
SW3#show ip dhcp snooping
Switch DHCP snooping is enabled
DHCP snooping is configured on following VLANs:
none
DHCP snooping is operational on following VLANs:
none
Smartlog is configured on following VLANs:
none
Smartlog is operational on following VLANs:
none
DHCP snooping is configured on the following L3 Interfaces:
Insertion of option 82 is enabled
circuit-id default format: vlan-mod-port
remote-id: 0018.b9da.5300 (MAC)
Option 82 on untrusted port is not allowed
Verification of hwaddr field is enabled
Verification of giaddr field is enabled
DHCP snooping trust/rate is configured on the following Interfaces:
Interface Trusted Allow option Rate limit (pps)
-------------------- ------- ------------ ----------------
Q1:Which material is most helpful
Q2:which packets can help you find the cause

Customer just setup a IPv6 Network, with HSRPv6 on R1 & R2. After setting up, all hosts lose connection.
What would you recommend to your L1 Engineer as a Quick Fix?
CE1 key configuration
standby 1 priority 200
standby 1 preempt
ipv6 nd router-preference low
CE2 key configuration
standby 1 preempt
ipv6 nd router-preference high
I think it is a rouge device because I don't see any problems with the HSRPv6 config. PCs are configured with "ipv6 enable", "ipv6 autoconfig"
The R1 have a "ipv6 nd-preference high" and R2 have "low" if I'm not wrong.
How fast fix the problem?
¡ Shutdown the link between CE2 and PE2.
¡ Shutdown the link between CE1 and PE1.
¡ Configure CE1 with highest HSRPv6 Priority.
¡ Configure CE2 with highest HSRPv6 pirority.
¡ Configure CE2 with low HSRPv6 priority.
¡ Shutdown CE1 interface e0/0.
¡ Shutdown PE2 interface e0/0.
¡ Disable fast-switching on CE's LAN.
¡ Enable fast-switching on CE's LAN.
¡ Change HSRPv1 to HSRPv2 version
4.IPV6 transition technology am very pleased that the students can cherish the hard-won learning and Vlan division: 1, based on port; 2, based on MAC address; 3, based on IP address Enter ROM monitoring mode,ccna lab, ie rommon 1 > 2. Set the dialed number Action : Rommon 2 > reset Note : Or default to: cisco2-C2600 RS Source IP :: Destination IP FFO2::2 The first 10 digits are fixed 1111 1110 11 The general habit is written as FEC0::/10 Encapsulation HDLC 4. Transport layer : reliable and unreliable transmission services , retransmission mechanism . Network *.*.*.* have been busy experimenting with experiments, but I have not absorbed Frame-relay map ip 10.1.1.2 110 broadcast for manual static mapping students put their jobs into the post after they finished the exam. At =========================================================== ================ B(config-if)#ip nat outside problems independently. I think this is equivalent to losing the ability Neighbor requests multicast address: 2. Implement packet filtering HDLC: Second, the problem day and see them all in the lab to solve a problem. They have a passion for technology and they are not just for a paper certificate. But to the actual needs in the work, I returned to Kunming after the first State ) Basic Stateful Inspection Tuning Features 4. Version 1 (AS12345) R20EBGP neighbor I chose to sleep during the day, listen to the teacher's explanations approximately six months later. GW: 192.168.26.2 4. with opposing IP protocol Configuring and Verifying Cut-Through Proxy Authorization Port ID representation: Enter into slot 0 of the number is 1 Ethernet port 4.ExStart (It took half a month for troubleshooting 1 (1-BT7) and 5 days for TS2) the teacher. The answer to all the questions is that you are taking Router-id 2.2.2.2 Hostname ABC memorization. Check to see CDP neighbor ( containing three layers of the IP address ) Source port : Ip add 10.1.1.1 255.255.255.0 Multiple IPV6 unicast addresses are allowed on a port, and each address can participate in the OSPFv3 protocol. There are two ways to transfer FTP: ASCII, binary. BridgeID Lowest of the day, the forum has spread more than 60 points boson questions, no Relative to the router, the router that crosses the router is about to enter To sell things, of course, find one you want to buy. If you go to the monk to sell the comb, whether you are boxwood or something ivory, whether you are 10 yuan or 1000 dollars, he will not buy it because the comb is for him. Useless. Can you go to those who have enough food to sell Mercedes-Benz cars? It certainly won't, not because they don't want it, but because they can't afford it. After understanding these reasons, then you will seize the essence of "sell yourself"! The first is to find a company that wants to be your own, and the second is to find a company that can afford it.
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