Question 178 of 490 from exam 400-051: CCIE Collaboration

Question 178 of 490 from exam 400-051: CCIE Collaboration

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Refer to the exhibit.

IBranch-Router#debug ip dhcp
Aug 15 22:13:23.924:



Finding a relay for client Olec.4476.1le3e.7d on interface Vlan101.
setting giaddr to

BOOTREQUEST from Olec.4476.1e3e.7d forwarded to
forwarding BOOTREPLY to client ec44.76le. 3e7d.

broadcasting BOOTREPLY to client ec44.76le. 3e7d.

The exhibit shows the Cisco IOS CLI output of debug ipdhcp packet, which was captured on a router that is located at a branch office where a single IP phone is located.

There is a standalone Cisco Unified Communications Manager server at the central site, which also provides DHCP services to the IP phone at the branch office.

You are troubleshooting a problem where the IP phone could not register to Cisco Unified Communications Manager.

You have confirmed that the IP phone received an IP address in the correct subnet and with a correct subnet mask from the DHCP server.

Assuming the IP phone is correctly defined on Unified CM, which two statements about the network components are true? (Choose two.)



Click on the arrows to vote for the correct answer

A. B. C. D. E. F.


As we can see from the logs given first line relate that dhcp request is being relayed.

So it clarifies there must be ip helper address commend given by the admin on interface vlan 101

Now we can see from the second line that giaddress is set as source address of vlan 101 by the dhcp as to unicast the dhcp request.