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static-wep without authentication?

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  • 1.  static-wep without authentication?

    Posted Sep 06, 2018 08:26 AM

    We're trying to migrate from a Cisco configuration that used static-wep with opensystem authentication for one SSID.  Is this possible in the Aruba 8.3 platform?  So far it seems like the only possibility is opensystem with no encryption, or static-wep which implies shared-key authentication.  

     

    We believed this worked based on the fact that the devices associate and started rolling out APs. It turns out they don't actually work, so we have 175 devices that are going to be stranded.

     

    I understand that WEP is broken, and there is a plan to migrate to WPA2, but the AP rollout is in full swing so if there's any possibily of fixing this I need to find it.



  • 2.  RE: static-wep without authentication?

    EMPLOYEE
    Posted Sep 06, 2018 10:20 AM

    I haven't tested with WEP in a very long time, but using the default-open aaa profile with your WEP VAP (virtual-ap profile) should result in opensystem rather than shared-key. 

     



  • 3.  RE: static-wep without authentication?

    Posted Sep 06, 2018 10:47 AM

    This doesn't seem to have the desired effect.  The client still associates, but the user-table shows "No" in the auth column.   Strangely I don't see this user in just "show user-table" output, but it does show up if you use "show user-table mac X:X:X:X" 



  • 4.  RE: static-wep without authentication?

    EMPLOYEE
    Posted Sep 06, 2018 10:56 AM

    @jganger wrote:

    This doesn't seem to have the desired effect.  The client still associates, but the user-table shows "No" in the auth column.   Strangely I don't see this user in just "show user-table" output, but it does show up if you use "show user-table mac X:X:X:X" 


    Is the user device able to receive an IP address via DHCP or access the network? 



  • 5.  RE: static-wep without authentication?

    Posted Sep 06, 2018 11:12 AM

    The device has a static IP, there's no DHCP on this subnet.


    It is not able to communicate on the network.  The MAC address doesn't show up on the phsyical switch that the controllers are connected to either.  Other client's MAC addresses do show up on the switch, but not these ones.  I can ping other devices still associated to the Cisco APs from the controller's vlan interface so I know the vlans are configured correctly.



  • 6.  RE: static-wep without authentication?

    EMPLOYEE
    Posted Sep 06, 2018 11:16 AM

    Please share your current VAP and SSID profile configurations:

     

    show wlan virtual-ap
    show wlan virtual-ap <wep-profile>
    show wlan ssid-profile
    show wlan ssid-profile <wep-ssid-profile>


  • 7.  RE: static-wep without authentication?

    Posted Sep 06, 2018 11:51 AM

    I did attempt to reconfigure a test device for shared-key authentication just now and that also didn't seem to have an effect, so my hypothesis about the cause may be wrong.  So, now I'm not even sure why these clients can associate but don't appear to pass any traffic.

     

    Virtual AP profile "IVPUMP"
    -------------------------------
    Parameter Value
    --------- -----
    AAA Profile IVPUMP
    802.11K Profile default
    Hotspot 2.0 Profile N/A
    Virtual AP enable Enabled
    VLAN 15
    Forward mode tunnel
    SSID Profile IVPUMP
    Allowed band g
    Band Steering Disabled
    Cellular handoff assist Disabled
    Openflow Enable Enabled
    Steering Mode prefer-5ghz
    Dynamic Multicast Optimization (DMO) Disabled
    Dynamic Multicast Optimization (DMO) Threshold 6
    Drop Broadcast and Multicast Disabled
    Convert Broadcast ARP requests to unicast Disabled
    Authentication Failure Blacklist Time 3600 sec
    Blacklist Time 3600 sec
    Deny inter user traffic Disabled
    Deny time range N/A
    DoS Prevention Disabled
    HA Discovery on-association Enabled
    Mobile IP Enabled
    Preserve Client VLAN Disabled
    Remote-AP Operation standard
    Station Blacklisting Enabled
    Strict Compliance Disabled
    VLAN Mobility Disabled
    WAN Operation mode always
    FDB Update on Assoc Enabled
    WMM Traffic Management Profile N/A
    Anyspot profile N/A

    SSID Profile "IVPUMP"
    -------------------------
    Parameter Value
    --------- -----
    SSID enable Enabled
    ESSID IVPUMP
    WPA Passphrase N/A
    Encryption static-wep
    Enable Management Frame Protection Disabled
    Require Management Frame Protection Disabled
    DTIM Interval 1 beacon periods
    802.11a Basic Rates 6 12 24
    802.11a Transmit Rates 6 9 12 18 24 36 48 54
    802.11g Basic Rates 1 2
    802.11g Transmit Rates 1 2 5 6 9 11 12 18 24 36 48 54
    Station Ageout Time 1000 sec
    Max Transmit Attempts 8
    RTS Threshold 2333 bytes
    Short Preamble Enabled
    Max Associations 64
    Wireless Multimedia (WMM) Disabled
    Wireless Multimedia U-APSD (WMM-UAPSD) Powersave Enabled
    WMM TSPEC Min Inactivity Interval 0 msec
    DSCP mapping for WMM voice AC (0-63) N/A
    DSCP mapping for WMM video AC (0-63) N/A
    DSCP mapping for WMM best-effort AC (0-63) N/A
    DSCP mapping for WMM background AC (0-63) N/A
    WMM Access Class of EAP traffic default
    Multiple Tx Replay Counters Enabled
    Hide SSID Disabled
    Deny_Broadcast Probes Disabled
    Local Probe Request Threshold (dB) 0
    Auth Request Threshold (dB) 0
    Disable Probe Retry Enabled
    Battery Boost Disabled
    WEP Key 1 ***********
    WEP Key 2 N/A
    WEP Key 3 N/A
    WEP Key 4 N/A
    WEP Transmit Key Index 1
    WPA Hexkey N/A
    Maximum Transmit Failures 0
    EDCA Parameters Station profile N/A
    EDCA Parameters AP profile N/A
    BC/MC Rate Optimization Enabled
    Rate Optimization for delivering EAPOL frames Enabled
    Strict Spectralink Voice Protocol (SVP) Disabled
    High-throughput SSID Profile default
    802.11g Beacon Rate default
    802.11a Beacon Rate default
    Video Multicast Rate Optimization default
    Advertise QBSS Load IE Disabled
    Advertise Location Info Disabled
    Advertise AP Name Disabled
    Traffic steering from WLAN to cellular Disabled
    802.11r Profile N/A
    Enforce user vlan for open stations Disabled
    Enable OKC Enabled



  • 8.  RE: static-wep without authentication?

    EMPLOYEE
    Posted Sep 06, 2018 12:17 PM

    When you use the command "show profile-errors" on your controller, are there any errors reported?

     

    Likewise, can you post the output from "show aaa profile IVPUMP". With static WEP, the user is not authenticated, so the value for the initial role will determine what traffic a WEP user can pass when connected.



  • 9.  RE: static-wep without authentication?

    Posted Sep 06, 2018 01:09 PM

    No profile errors reported.

     

    My understanding is that with static wep you can have either opensystem or shared key authentication in addition to WEP encryption.  I set the initial role to authenticated:

     

    AAA Profile "IVPUMP"
    ------------------------
    Parameter Value
    --------- -----
    Initial role authenticated
    MAC Authentication Profile N/A
    MAC Authentication Default Role authenticated
    MAC Authentication Server Group default
    802.1X Authentication Profile N/A
    802.1X Authentication Default Role authenticated
    802.1X Authentication Server Group N/A
    Download Role from CPPM Disabled
    Set username from dhcp option 12 Disabled
    L2 Authentication Fail Through Disabled
    Multiple Server Accounting Disabled
    User idle timeout N/A
    Max IPv4 for wireless user 2
    RADIUS Accounting Server Group N/A
    RADIUS Roaming Accounting Disabled
    RADIUS Interim Accounting Disabled
    RADIUS Acct-Session-Id In Access-Request Disabled
    XML API server N/A
    RFC 3576 server N/A
    User derivation rules N/A
    Wired to Wireless Roaming Enabled
    Reauthenticate wired user on VLAN change Disabled
    Device Type Classification Enabled
    Enforce DHCP Disabled
    PAN Firewall Integration Disabled
    Open SSID radius accounting Disabled
    (Controller-2) #

     

     

    Interestingly though, TAC just looked at "show datapath crypto counters" which has 1.5 million WEP Decryption Failures and WEP Decryption CRC Failures so we may be on to something!

     

     

     



  • 10.  RE: static-wep without authentication?

    Posted Sep 06, 2018 10:47 AM

    This doesn't seem to have the desired effect.  The client still associates, but the user-table shows "No" in the auth column.   Strangely I don't see this user in just "show user-table" output, but it does show up if you use "show user-table mac X:X:X:X"