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ACL Blocking Layer Two Traffic

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Information

 
TitleACL Blocking Layer Two Traffic
Symptoms
  • Users work if connect to same distribution switch
  • User cannot communicate to devices on  same VLAN if data path crosses the router
  • Remove ACL from interface resolves
Environment
  • S-Series
  • K-Series
  • 7100-Series
Cause
ACL was configured with the all-traffic parameter
interface vlan.0.<NUMBER>
ip access-group <NAME> in all-traffic

all-traffic

Specifies that the assigned ACL is applied to all traffic on the interface, not just the routed traffic.

routed-traffic

(Optional) Specifies that the assigned ACL is applied only to the routed traffic on the interface. (Default)

If the traffic type is not specified, the ACL is applied only to routed traffic
Resolution
Use the default routed-traffic parameter
Additional notes

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