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d sterlingFlag for United States of America

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Cisco Switch can't ping computer on Vlan 86, but the computer can ping other devices on its vlan.

Can't access new devices configured for vlan 86, but can access all devices previously configured on vlan 86. 


Connected computer to port 24 on switch1 on vlan 86. The switch is a layer 3 switch (Cisco C9500) and the default gateway for numerous vlans to include vlan 86. 


ip of computer 192.168.86.55 255.255.255.0

default gateway: 192.168.86.1


The arp table shows the computer ip and it's complete. 


Port configuration on Switch2:

   switchport mode access

   switchport access vlan 86 


From the computer I can ping the default gateway and other devices in the vlan 86 arp table.  

I can't ping the computer ip from the switch it's connected too (Switch1). If I try to source the ping from another vlan I still can't get to the computer IP, but I can get to other IPs on the vlan 86 subnet sourcing from another vlan. 


If I try to configure another device on the same vlan (vlan 86) on the switch, nothing can communicate to it, same issue as above. 


There was an access-list on vlan 86 that I took off and still did not make a difference. 


Current vlan 86 configuration after taking off the access-group is:

interface vlan 86

ip add 192.168.86.1 255.255.255.0


There are a number of access-list on the switch, but I don't see how any of them could be blocking icmp to the computer. I checked the interfaces and they are not applied on the vlan 86 or the port the computer is connected too. 


Need help? 


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Philip Elder
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