A network DHCP server crashes and has to be rebuilt from scratch. Shortly afterwards many users report an "Address Conflict" alert on their computers. Which of the following tools should the users…

The correct answer is B. ipconfig. When the DHCP server was rebuilt from scratch, it lost its lease table and began re-issuing IP addresses that were still actively held by existing clients. This causes IP address conflicts. The fix is to run 'ipconfig /release' followed by 'ipconfig /renew' on affected Windows…

Networking

Question

A network DHCP server crashes and has to be rebuilt from scratch. Shortly afterwards many users report an "Address Conflict" alert on their computers. Which of the following tools should the users run to help fix this issue?

Options

Aroute
Bipconfig
Cnetstat
Dnbtstat

How the community answered

(37 responses)

B
95% (35)
C
3% (1)
D
3% (1)

Explanation

When the DHCP server was rebuilt from scratch, it lost its lease table and began re-issuing IP addresses that were still actively held by existing clients. This causes IP address conflicts. The fix is to run 'ipconfig /release' followed by 'ipconfig /renew' on affected Windows machines, which forces each client to release its old (conflicting) lease and request a fresh one from the newly rebuilt server. 'route' (A) manages routing tables and is unrelated. 'netstat' (C) displays active connections and ports. 'nbtstat' (D) is used for NetBIOS name resolution troubleshooting. Only ipconfig has the release/renew functionality needed here.

Topics

#ipconfig#DHCP#IP address conflict#network troubleshooting

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