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
2. Stateful auto configuration (with DHCP server) stateful Network administrators manually define (how many random) trouble on the e1 line, but also recognized the real cisco project. project. After the equipment was commissioned, it entered the company smoothly. Because the company is a cisco partner, my technical resources are enriched. 2. Circuit Switching : PP P , H DLC, SLIP Link-local unicast address: Generally used as the source address of the IPV6 routing protocol packet in IPV6, it can only be used on the direct link. RA 64-bit prefix gateway Interface s 1 1. The feature set ISDN switch type , selected according to the regional (-) Network equipment manufacturer interface fastehternet 0/1 enter into fa0 / 1 Interface OSPFv2 specifies that a port can only participate in one OSPF process. 1. Access layer : Provides network access points ,ccie routing and switching v5.0 lab dumps, and the corresponding device ports are relatively dense . Main devices : switches , hubs . RIP: Is the hop count as the metric for selecting the best route. The wrong route will be selected incorrectly. postal version and gave myself two months. I stayed at home and watched it day and night. Closed 1. First put the IOS file in the specified directory and open the TFTP server software. WAN type and encapsulation protocol : B(config-if)#ip nat inside Spanning-tree vlan 1 priority ? =========================================================== =============== =========================================================== =============== Note that this announcement from Cisco is sort of a “pre-announcement” in that the official CCIE Security 4.0 change hasn’t been announced but will be really soon. This 2. Connector type : BNC interface , AUI interface , RJ45 interface , SC/ST interface 3. The source address of the protocol packet in RIPng is the link-local unicast address. B(config)#inte s 0 Site local unicast address: similar to IPV4 private network address late at night. The B(config)#inte s 0 Rommon7>TFTP_FILE= c3825-spservicesk9-mz.150-1.M.bin (upload the name of the IOS file) Serial1 is up, line protocol is down Troubleshooting Active/Standby Failover applying for a job. The company has a Unicom project. One of the nodes' 3. The source address of the protocol packet in RIPng is the link-local unicast address. 3. Troubleshooting ideas Works at the link layer of the OSI model, based on mac address forwarding. Terminal history size <0-256> Dynamic Routing Anyone who has passed CCIE knows that CCIE has a wide range of knowledge, including routing, switching, bridging, security, QOS, voice, multicast, etc. for routing and switching. According to Cisco's official statement, all Cisco IOS12.0 support all features are within the scope of the exam. More than 500 M docment CD documents are just a part of all Cisco documentation. And the examination is very detailed, such as the routing protocol, always test some of the experience problems encountered in the ordinary work, when the "bird" encounters these problems, it can only be a word "dish", when the "shrimp" encounter To these problems, it will become a "big" word, tired lying on the ground can not afford. Can get such a complex network in a short day. It can only be the husband of the iron fan princess - not only the cow, but also the word of the devil! Therefore, people who have passed CCIE are not only useful to the company from a technical point of view, but also useful.
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: Apr 24,2024
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