200-301 · Question #999
Refer to the exhibit. The P2P Blocking Action option is disabled on the WLC. The security team has a new requirement for each client to retain their assigned IP addressing as the clients move between
The correct answer is A. Enable the Static IP Tunneling option.. To enable clients to retain their assigned IP addresses while roaming between different subnets within a campus network managed by a WLC, the Static IP Tunneling option should be enabled.
Question
Refer to the exhibit. The P2P Blocking Action option is disabled on the WLC. The security team has a new requirement for each client to retain their assigned IP addressing as the clients move between locations in the campus network. Which action completes this configuration?
Exhibits
Options
- AEnable the Static IP Tunneling option.
- BDisable the Coverage Hole Detection option.
- CCheck the DHCP Addr. Assignment check box.
- DSet the P2P Blocking Action option to Forward-UpStream.
How the community answered
(28 responses)- A75% (21)
- B7% (2)
- C14% (4)
- D4% (1)
Why each option
To enable clients to retain their assigned IP addresses while roaming between different subnets within a campus network managed by a WLC, the Static IP Tunneling option should be enabled.
Enabling Static IP Tunneling, also known as mobility tunneling, allows a client's traffic to be tunneled back to its original WLC or a designated anchor WLC, thus maintaining its original IP address and subnet even when it roams to an AP associated with a different WLC or subnet.
Disabling Coverage Hole Detection affects how the WLC monitors and reports areas with poor wireless coverage and has no impact on IP address retention during roaming.
The DHCP Address Assignment checkbox typically controls how the WLC handles DHCP proxy or relay, but it does not ensure IP address retention across different subnets during roaming.
Setting the P2P Blocking Action option to Forward-UpStream controls whether client-to-client traffic on the same WLAN is forwarded through the AP or blocked, which is unrelated to IP address retention during inter-subnet roaming.
Concept tested: Cisco WLC client roaming and IP retention
Source: https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/b_cg85_chapter_01101.html
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