I have this scenario where the laptop must be able to ping every interface and vice versa and I am not able to understand how to make the Laptop ping the router and other interfaces ?

The PCs can ping the printer and other interfaces except the laptop, only the laptop cannot ping any interface.

I have added the Wireless routers internet address as the VLANs management 1st IP address from switches.

Spent quite some hours but still not able to figure out why, when I use the simulation mode to ping PCs to wireless router the packets fail at the Inter-VLAN router and from Laptop the packets return back to wireless Laptop without going further to the wired router and without any error, I have gone through each interface and the IPs still not able to figure out whats wrong.

Any ideas ?

Packet Tracer file: http://www114.zippyshare.com/v/zF9FR3FV/file.html ALL DEVICE PASSWORDS ARE "cisco"

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Thank You

  • If the laptop is Windows, make sure the firewall is turned off. Also, have you verified the default gateway of the laptop?
    – Ron Trunk
    Commented May 16, 2017 at 13:06
  • Its not a real windows, all is in Packet Tracer simulation..
    – tryllz
    Commented May 16, 2017 at 13:07
  • Does the wireless router have a route to the other networks and vice versa?
    – Ron Trunk
    Commented May 16, 2017 at 13:08
  • Its inter-VLAN routing, there is no need for routing on the router as far as I know, if you are asking about sub-interface, all sub-interfaces are created on router and switches to pass traffic, as PC can ping printer, both of which are on different networks..
    – tryllz
    Commented May 16, 2017 at 13:10
  • Sorry I mis-read, NO the wireless router has no routing options in Packet Tracer..
    – tryllz
    Commented May 16, 2017 at 13:14

2 Answers 2


After taking a look at the attached Packet Tracer file in the original post, I've noticed that a couple of things are configured incorrectly. I've addressed the issues that affect the connectivity of the wireless laptop to the other hosts in the network.

  • The Cisco 2811 router (KucRTR) has a subinterface f0/1.199 with IP address This happens to be the same IP address as the WAN interface of the wireless router.
  • The default gateway and the internet IP address of the internet connection of the wireless router are the same. Both are configured as
  • The interface f0/1 of the Cisco Catalyst 2960 switch (KucMgmt) is configured with VLAN 19 while the subinterface f0/1.199 of the Cisco 2811 router is configured with VLAN ID 199.

In order for the wireless laptop to contact the other hosts in the network and vice versa, consider the following changes:

  1. Change the IP address of the WAN interface of the wireless router to
  2. Change the VLAN of interface f0/1 of the layer 2 switch (KucMgmt) to VLAN 199.

Packet tracer does NOT allow for Wireless routers to respond to ICMP (ping) packets, I tested this by adding a wired device to the wireless router and pinging all interfaces and it pings.

There is setting in Access Restriction in GUI tab in wireless routers which HAS to be accessed through the connected wireless PC via web browser (, just enabling it will allow for the wireless PC to ping all other interfaces but NO setting for wireless router to respond to incoming ping packets.

This issue is resolved.

Thank You everyone.

  • 1
    You should accept your own answer so that the question doesn't keep popping up looking for an answer.
    – Ron Trunk
    Commented May 16, 2017 at 16:19

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