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 12,2025
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
every day Can
How to learn ipv6 mentioned in CCIE Routing and Switching, let me explain it today.
1. Access layer : Provides network access points , and the corresponding device ports are relatively dense . Main devices : switches , hubs .
Neighbor discovery process, mainly using ICMPv6
When the PC gets the IPV6 address and then sends the NS, the DAD is completed.
Tone test igrp event content
As number is the autonomous system number ( autonomous domain )
(1) CCIE is the king of technology
1Gbps
The s0 port of B is the front door, the s1 port is the back door, the whole B is your living room, the front door is connected to A, and the back door of the living room is connected to your treasury (C).
Configuring and Verifying the Cisco ASA Security Appliance DHCP Server
Link State Routing Protocols
1. Address Learning Address learing
Use the appropriate algorithm , such as (SPF) to calculate the best route trigger update
phenomenon of equipment operation I got from books, switches and routers
Transport Layer: A layer in the TCP/IP stack that provides error control and validation and acts as an interface to network applications.
4. The non-designated port is set to the blocked state.
am very pleased that the students can cherish the hard-won learning and
Managing the Cisco ASA Adaptive Security Appliance Basic Upgrade
This port was added to 10 VLAN in .
VTP is a messaging system . Ensures that all switches in the same management domain network following a VLAN
examination expenses. I am very pleased to see the students busy all
Detect the validity of the interface
Configure the S0 interface as an inside network.
Interface fastethernet 0/1
The second stage: DIAG can't end early, so I meditate (rest) there for about 17 minutes.
Configuring and Verifying Active/Active Failover
Forced interruption of "telnet to local " session
R14(config-if)#dialer-group 9
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