Everyday Ten Ask ccie written experience

1. Question: Does ip source guard cause cpu to rise?

Answer: No, ip source guard is hardware-based, and filtering the ip message smac plus ip that does not conform to the dhcp snooping table item does not cause cpu to rise.
2. Question: What is the difference between source-based ip and source ip and mac?
Answer: If the port filtering mode is source-based ip, mac and vlan can be configured at will when configuring a static legitimate entry based on the port. If the port filtering mode is configured for source-based ip-mac, the mac and vlan must be precisely configured correctly when configuring port-based static legitimate entries.
3. Question: What is the hardware binding entry configured by ip source guard?
Answer: The hardware binding entry for the ip source guard configuration is loaded in the same software table item as dhcp Snooping. Remember to ingest the table item signed for static configuration.
4. Question: How do Isee the delegated status of the ipv6 stateless access address?
Answer: Stateless access address method can not view the delegated address situation, state-acquired address method can be viewed using show ipv6 dhcp bing.
5. Question: How to view the mac address of ipv6 learning (ipv6 arp information)?
Answer: (1) Open cmd, enter netsh, and enter netsh mode.
2 Enter ipv6 interface, inter ipv6
(3) View ipv6 mac information: show neig
6. Problem: The symptom is: Wired users get ipv6 addresses normally but wireless users find that they often get multiple addresses, is it resulting in ipv6 network sconnects not working?
Answer: Multiple addresses are obtained because the wireless terminal automatically gets the ipv6 address from the stateand and the address of ipv6 from the stateless.
7. Question: Does the computer terminal get multiple ipv6 temporary addresses causing communication anomalies?
Answer: Under the cmd command line of the terminal: netsh interface IPv6 set privacy state-disable. Terminals are prohibited from obtaining temporary ipv6 addresses.
8. Question: What is the ipv6 protocol data link layer field value?
Answer: ipv6 data link layer field value: 0x86dd
Problem: ipv6 is not stateless to get an address, and there is no problem with the switch configuration.
Answer: show ipv6 int vlan x, you can see if the local link address is OK whether there is a conflict. If there is conflict or some else indicating a conflict, in this case to check whether the loop.
10. Question: The two switches on the deployment of ipv6 VRRP, the following access to the switch connection pc, pc stateless access address, ping not access to the ipv6 virtual gateway, you can ping through the real gateway.
Answer: ipv6 vrrp is not configured.
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