300-425 · Question #254
A network engineer must configure mobility between two Cisco AireOS WLCs in different locations. There is a firewall between the WLCs for data and control traffic. Which two traffic rules must be…
The correct answer is A. IP Protocol 97 E. UDP 16666/16667. IP Protocol 97 is the Ethernet-over-IP (EoIP) tunnel that AireOS controllers use for unencrypted mobility data traffic. UDP 16666 is the mobility control channel port; UDP 16667 is the data channel port when encrypted mobility tunnels are in use. Allowing both the EoIP protocol…
Question
A network engineer must configure mobility between two Cisco AireOS WLCs in different locations. There is a firewall between the WLCs for data and control traffic. Which two traffic rules must be allowed on the firewall to validate that the WLCs can communicate? (Choose two.)
Options
- AIP Protocol 97
- BUDP 12222/12223
- C1645/1646
- D1812/1813
- EUDP 16666/16667
How the community answered
(41 responses)- A73% (30)
- B17% (7)
- C5% (2)
- D5% (2)
Explanation
IP Protocol 97 is the Ethernet-over-IP (EoIP) tunnel that AireOS controllers use for unencrypted mobility data traffic. UDP 16666 is the mobility control channel port; UDP 16667 is the data channel port when encrypted mobility tunnels are in use. Allowing both the EoIP protocol and the UDP mobility ports ensures that mobility control messages and client-data tunnels can traverse the firewall between the WLCs.
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