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
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: Dec 30,2024
Vlan 20
advantage of the big loss." If you graduated into a stable unit, you It
Ip routing vol 1, LAN SWITCHING, Internet Architeche. LAN at the time
Although these two methods (in / out) can achieve efficiency, but from a performance point of view, there is still a difference, in fact, the best way is to choose method 1, just like the thief did not enter the vault, at least into In your living room (B), dirty the carpet in your living room (B will consume some extra unnecessary treatment)
Frame-relay intf-type dce
2.Client mode
Modify the startup configuration key
if the student is superstitious, superstitious, superstitious, he loses
3. Stateless autoconfiguration (no DHCP server) stateless
Show version
one o'clock this morning, I kicked the ball back to the lab. I will
OSPFv3 is developed based on OSPFv2. The principle of OSPFv3 is the same as that of OSPFv2.
The freshmen who have just finished CCIE, the technical principles/commands are very familiar, but the treatment is still far away.
Exit port configuration device
Q8: D version CP snooping, add a trust, and then remove the D version of the CP lease
B(config)#inte s 0
Difference between IN and OUT in Cisco ACL
can't replace your thinking, can't decide your future. If
Time Node 5: Junior Social Practice (Internship), I have participated in the after-sales customer of Huawei Mall (getting the ability and language charm as a customer service), and the NP assistant lecturer of the corporate training organization. The latter lasted for more than three months.
0 : represents no cache
Even if you have tested the CCIE for routing and switching, you may not be able to do the right thing.
HoldTime 180 seconds ( every two CDP information will guarantee save 180 [ seconds )
Change the cost cost of an interface .
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