5 votes
Accepted

What would cause 'Unable to create temp dir "flash:/update"' when updating Cisco AP?

Many Cisco devices include the fsck command to check the file system with. If you run this command on the flash, it will attempt to fix file system errors for you. These were my results: ap#fsck ...
4 votes
Accepted

How can I legally get a software upgrade for my Cisco Wireless controller without a service contract so it supports my more recent access-point?

Cisco's policy is to offer free software upgrades for security vulnerabilities. They only let you get the feature set you already have, and they give you the smallest "feature version" ...
  • 2,083
4 votes

Cisco Prime / 5508 WLC captive portals

Not directly on the WLC, but using Cisco ACS, ISE or other RADIUS server, you can set the captive URL using the url-redirect value of the cisco-av-pair RADIUS attribute. This overrides the WLC ...
4 votes
Accepted

Cisco Prime / 5508 WLC captive portals

Based on this Configuration Guide, it would appear to only support one portal. I don't know if there's a way to specify the SSID (network) to the portal page / WLC. (I've never needed to. [it's in the ...
  • 29.7k
4 votes

Cisco 1142: Gather "show int dot11Radio N statistics" Data via SNMP?

According to this list, none of those MIBs carry per-rate statistics. Looking through all the v1 and v2 MIBs, I see nothing to indicate a way to get the per-rate stats. Cisco IOS MIB Locator for my ...
  • 29.7k
4 votes

How to limit number of wireless clients on Cisco access point?

Yes, you can do that. It is called max-associations option under ssid configuration section and can be done per SSID. Let us say you want to set the maximum number of devices that can associate using ...
  • 3,754
3 votes
Accepted

Which Cisco access points (and what IOS versions) does the AIR-CT2504 wireless LAN controller support?

According to Cisco release notes for the Cisco 2504 Wireless LAN Controller, the last software, that supported the Cisco 1140 Series AP and Cisco 1250 Series AP is Releases 8.0.150.0 (31-Aug-2017) and ...
  • 1,700
3 votes
Accepted

Manage Wifi clients

I do not want users to use their windows credentials (so they do not connect phones) - Users are not allowed to know the password (same reason) As you mentioned Windows and ACS, you can still use ...
3 votes
Accepted

Should I use the same Native VLAN for the management traffic network-wide?

Untagged (native) VLANs don't really offer you any benefit over tagged VLANs, and they present a certain level of security risk. There is no real reason to use untagged VLANs when tagged VLANs are ...
  • 94.6k
2 votes
Accepted

How to connect Cisco AP1242 with WLC4402?

You can connect each AP to the controller directly, because you only have two APs and you happen to have two distribution ports on the controller. If you wanted to connect more than two APs to your ...
2 votes

How to secure WiFi with user name and password?

Your Cisco 2500 WLC can authenticate wireless clients in many different ways, one of them being a captive web portal with username and password. A Radius server can be used, but this might be ...
  • 4,631
2 votes
Accepted

How to secure WiFi with user name and password?

Consider looking into PacketFence(.org) + FreeRADIUS. PacketFence describes itself as : PacketFence is a fully supported, trusted, Free and Open Source network access control (NAC) solution. ...
  • 243
2 votes

Bonjour defeating wireless isolation?

I think SSID isolation is not the same as Client Isolation. Some controllers will have both and I believe they perform two different tasks. With SSID isolation, it simply means that if you have ...
  • 2,006
2 votes

Cisco WLC: Displaying AP configuration commands

Is there a way to display on a WLC a list of commands used for configuration of a given AP? For a given AP? No. But you can list all the commands from the running configuration with the following: ...
  • 26.8k
2 votes

Cisco WLC: Displaying AP configuration commands

If your question is to get the following AP configs .. AP#capwap ap ip address AP#capwap ap ip default-gateway AP#capwap ap primary-base AP#capwap ap secondary-base AP#capwap ap ...
2 votes
Accepted

Does each computer/smart phone use electromagnetic wave with different frequency to communicate when they're connected to a WLAN?

My understanding is: ODFM means that each host(PC, laptop, smart phone, etc.) uses electromagnetic wave with different frequency to communicate with the wireless router(or hotspot)? What OFDM does is ...
  • 94.6k
1 vote
Accepted

Does using Cisco's switch-central WLC deployments drastically increase delay for wireless clients?

Easier deployment, since you don't have to plan VLANs ahead and push them to switches. Management VLAN for APs in access mode is enough. Gives you the ability to use DNS ACLs.VLAN pooling needs to be ...
1 vote

How can I configure the "DHCP Addr. Assignment" Required on a Cisco WLC 2504 from the CLI?

The error is a standard "warning" message you get when making this configuration. I don't believe this has any relation to your problem. Instead, you said you entered this: config wlan dhcp_server ...
  • 26.8k
1 vote

Cisco Mobility Express - supported authentication options

If you mean host to network attachment, then it works much like any other Cisco wireless products using WPA2 Personal (Pre-Shared Key) or WPA2 Enterprise (802.1X using RADIUS). If you mean logging ...
  • 94.6k
1 vote
Accepted

Understanding how a Wi-Fi transmitter chooses a BSSID for Virtual Access Points

The OUI (Organizationally Unique Identifier) for a MAC address is assigned by the IEEE. The rest of the MAC address is assigned by the company to which the OUI is assigned, and it is completely up to ...
  • 94.6k
1 vote

Cisco Wireless Migration

What Avery has said is correct. Assuming you mean NTP Servers for wireless clients, that would have to de bone through DHCP. You could only assign an NTP Server statically for the Wireless LAN ...
1 vote

APs not joining WLC Cisco 4400 Series

Certificate with serial number: 3C1E27950000000C5C4B expired on 17 Jan 2017. Please double check certificates and configured trustpoints. It could be manufacturing installed certificates. I've found ...
1 vote

How to connect Cisco AP1242 with WLC4402?

The WLC should connect to a switch via ethernet. Normally it is configured using a trunk so that you can have multiple VLANs: one for the WLC management address, and one or more for the various SSIDs ...
  • 94.6k

Only top scored, non community-wiki answers of a minimum length are eligible