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No DHCP issued to clients connected to wireless AP.

  • 1.  No DHCP issued to clients connected to wireless AP.

    Posted 07-29-2018 23:39
    I have replaced an Enterasys switch with a new X440G2-48p everything works fine except when devices connect to a Ruckus AP attached to the switch the devices do not obtain IP addresses.

    Any help greatly appreciated.


  • 2.  RE: No DHCP issued to clients connected to wireless AP.

    Posted 07-30-2018 10:02
    Baz, can you show the configuration of the ports connected to the AP both pre and post-switch swap? On the newer switch "sho port x info detail" where x is the port should provide everything. Also, where is DHCP being delivered from? I'm assuming that the ruckus and DHCP were working in the prior environment (not new to the environment)?

    BigRic


  • 3.  RE: No DHCP issued to clients connected to wireless AP.

    Posted 07-30-2018 23:05
    Hi Ric

    Thanks for the reply the AP was working fine prior to changing the switch, DHCP comes via our DHCP server in our DC downstairs, I have taken the AP off the ceiling and plugged it into a spare port at my desk and it works fine when clients connect they get an IP address without issue (different switch) Unfortunately I do not have the config for the Enterasys as it has been utilized elsewhere after wiping it.

    Port detail below AP is set up on the DATA vlan

    # show port 47 info detail
    Port: 47
    Virtual-router: VR-Default
    Type: UTP
    Redundant Type: NONE
    Random Early drop: Unsupported
    Admin state: Enabled
    Copper Medium Configuration: auto-speed sensing auto-duplex auto-polarity on
    Fiber Medium Configuration: auto-speed sensing auto-duplex
    Link State: Active, 1Gbps, full-duplex
    Link Ups: 11 Last: Tue Jul 31 00:30:00 2018
    Link Downs: 10 Last: Tue Jul 31 00:29:57 2018

    VLAN cfg:
    Name: DATA, Internal Tag = 1, MAC-limit = No-limit, Virtual router: VR-Default
    Name: VOICE, 802.1Q Tag = 4, MAC-limit = No-limit, Virtual router: VR-Default
    Port-specific VLAN ID: 4
    STP cfg:

    Protocol:
    Name: DATA Protocol: ANY Match all protocols.
    Trunking: Load sharing is not enabled.

    EDP: Enabled

    EEE: Disabled
    ELSM: Disabled
    Ethernet OAM: Disabled
    Learning: Enabled
    Unicast Flooding: Enabled
    Multicast Flooding: Enabled
    Broadcast Flooding: Enabled
    Jumbo: Disabled
    Flow Control: Rx-Pause: Enabled Tx-Pause: Disabled
    Priority Flow Control: Disabled
    Reflective Relay: Disabled
    Link up/down SNMP trap filter setting: Enabled
    Egress Port Rate: No-limit
    Broadcast Rate: No-limit
    Multicast Rate: No-limit
    Unknown Dest Mac Rate: No-limit
    QoS Profile: None configured
    Ingress Rate Shaping : Unsupported
    Ingress IPTOS Examination: Disabled
    Ingress 802.1p Examination: Enabled
    Ingress 802.1p Inner Exam: Disabled
    Ingress 802.1p Priority: 0
    Egress IPTOS Replacement: Disabled
    Egress 802.1p Replacement: Disabled
    NetLogin: Disabled
    NetLogin port mode: Port based VLANs
    Smart redundancy: Enabled
    Software redundant port: Disabled
    IPFIX: Disabled Metering: Ingress, All Packets, All Traffic
    IPv4 Flow Key Mask: SIP: 255.255.255.255 DIP: 255.255.255.255
    IPv6 Flow Key Mask: SIP: ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
    DIP: ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff

    auto-polarity: Enabled
    Preferred medium: Fiber
    Shared packet buffer: default
    VMAN CEP egress filtering: Disabled
    Isolation: Off
    PTP Configured: Disabled
    Time-Stamping Mode: None

    Dynamic VLAN Uplink: Disabled
    VM Tracking Dynamic VLANs: Disabled



  • 4.  RE: No DHCP issued to clients connected to wireless AP.

    Posted 08-02-2018 23:00
    Hi anyone any idea at all why this is happening?


  • 5.  RE: No DHCP issued to clients connected to wireless AP.

    Posted 08-03-2018 06:29
    Could you please connect the client again to the SSID and then run the following on the switch....

    show port 47 vlan
    show fdb | i 47

    Also please provide the AP and client MAC.