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Cisco Bug: CSCuq17370 - Config guide advises to block SWISS packets in production

Last Modified

Sep 13, 2019

Products (1)

  • Cisco NAC Appliance (Clean Access)

Known Affected Releases

4.9(3)

Description (partial) 

Symptom:
http://www.cisco.com/c/en/us/td/docs/security/nac/appliance/configuration_guide/49x/cas/49xcas-book/s_L3oob.html
 
Layer 3 OOB: Networking
ยท           Cisco recommends adding an ACL on your network access switch(es) to prevent SWISS packets from traversing the access VLAN. This simultaneously cuts down on unnecessary packets on the access network, and can help prevent authentication looping on the client machine when SWISS packets make it back to the CAS.

Conditions:
N/A
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