CCNP TSHOOT 300-135 Ticket 048

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Download Lab: GNS3

Prerequisites:

 Cisco IOSv        (vios-adventerprisek9-m.vmdk.SPA.156-2.T)
 Cisco IOSvL2    (vios_l2-adventerprisek9-m.03.2017.qcow2)
 GNS3 AAA Server Download

Note:
Since prerequisites for these labs are Cisco VIRL images, Frame Relay Cloud in original topology from the Cisco will be replaced by IOSvL2 switch and configured appropriately to imitate sub-interfaces for the point-to-point links. Access to the Cloud not available. All interfaces on the Cloud are configured as 802.1q Trunk, permitting VLAN 12,23,34.


Objectives:
While troubleshooting connectivity to Web server network engineer notice console messages on the DSW1 and DSW2 about duplicate addresses. Identify the source of this issue then continue working on the communication problem to the server.
DSW1#
*Oct  3 18:34:27.989: %IP-4-DUPADDR: Duplicate address 10.2.1.254 on Vlan10, sourced by 0000.0c9f.f00a
*Oct  3 18:34:58.085: %IP-4-DUPADDR: Duplicate address 10.2.1.254 on Vlan10, sourced by 0000.0c9f.f00a

DSW2#
*Oct  3 18:34:09.792: %IP-4-DUPADDR: Duplicate address 10.2.1.254 on Vlan10, sourced by 0000.5e00.010a
*Oct  3 18:34:40.689: %IP-4-DUPADDR: Duplicate address 10.2.1.254 on Vlan10, sourced by 0000.5e00.010a


Topology:




Instruction:
Before you start troubleshooting make sure that Clients obtained IP information from the DHCP server or investigate the cause of DHCP failure if it is part of the problem-solving effort.
Determine the cause of the problems.
Implement a solution to resolve the problems.


Validation:
Users in both VLAN 10 and 20 have to access the WEB Server at 209.65.200.241, ping from clients will prove that all issues have been resolved.