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300-410 Practice Question: Which THREE commands can be used to troubleshoot…
Which THREE commands can be used to troubleshoot DHCPv6 client address assignment issues on a Cisco IOS router acting as a DHCPv6 client? (Choose THREE.)
⚠ Common exam trap
Cisco often tests the distinction between DHCPv4 and DHCPv6 commands, expecting candidates to know that 'show ip dhcp binding' is IPv4-only and 'show ipv6 dhcp pool' is server-side, not client-side.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
show ipv6 dhcp interface
'show ipv6 dhcp interface' displays the DHCPv6 client state, including the assigned IPv6 address, prefix, and server information for a specific interface. This command directly shows whether the client has successfully obtained an address via DHCPv6.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
show ipv6 dhcp interface
Why this is correct
Displays DHCPv6 client state, server address, and lease information.
- ✓
debug ipv6 dhcp detail
Why this is correct
Shows detailed DHCPv6 message exchanges for troubleshooting.
- ✓
show ipv6 interface
Why this is correct
Shows the IPv6 address assigned via DHCPv6 on the interface.
- ✗
show ip dhcp binding
Why it's wrong here
This command is for DHCPv4 server bindings, not DHCPv6 client.
- ✗
show ipv6 dhcp pool
Why it's wrong here
This shows server-side DHCPv6 pool configuration, not client information.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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