Wireless Access

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Access network design for branch, remote, outdoor and campus locations with Aruba access points, and mobility controllers.
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Users not getting the IP addresses after they connect and disconnects.:

  • 1.  Users not getting the IP addresses after they connect and disconnects.:

    Posted Feb 02, 2015 10:58 AM

    Dears,

     

    I have a model Aruba controller 3600 that is the problem in the dhcp lease. Although there available IP address, do not connect to network devices.

     

    Can You help me?

     

    Issue : Users not getting the IP addresses after they connect and disconnects. - customer is connecting the clinet to the below ssid Localiza-Guest, LL_MOBILE - ssid LL_MOBILE has more than 5 vlans mapped to it - client doen't has any issue when connected and mapped with vlans server by Windows dhcp server - issue is with the vlan 700 which is server by the controller for dhcp - same vlan is mapped to the other ssid having same issue - checked the active clinet / found 70 connected - checked the dhcp free lease/ found only 49 - explained that lease time is not expired for the users which is causing issue - checked the lease time - 24 hours is assigned, reduced to 8 hours - aaa user fast age enabled to remove the duplicate ip addresses


    #3600


  • 2.  RE: Users not getting the IP addresses after they connect and disconnects.:

    Posted Feb 02, 2015 11:37 AM
    How is that VLAN and DHCP scope configured?
    Can you share the user-role getting assigned "show rights <role name>
    Can you please share the config?


  • 3.  RE: Users not getting the IP addresses after they connect and disconnects.:

    Posted Feb 02, 2015 11:59 AM

    The Controller is the dhcp server on the networkI changed the configuration of the lease the ip, but the error remains.

     

    Thanks.

     

     

    interface vlan 700
            ip address 172.16.254.254 255.255.255.0
            ip nat inside

    vlan 700                172.16.254.254 / 255.255.255.0     up      up


    ip dhcp excluded-address 172.16.254.250 172.16.254.254
    ip dhcp pool 172.16.254.0/24
     default-router 172.16.254.254
     dns-server 172.16.254.254
     domain-name guest.localiza
     lease 0 1 0 0
     network 172.16.254.0 255.255.255.0
     authoritative

     

     

    visitante) #show ip dhcp database

    DHCP enabled

    # 172.16.254.0/24
    subnet 172.16.254.0 netmask 255.255.255.0 {
            default-lease-time 3600;
            max-lease-time 3600;
            option domain-name "guest.localiza";
            option vendor-class-identifier  "ArubaAP";
            option vendor-encapsulated-options  "10.1.1.217";
            option domain-name-servers 172.16.254.254;
            option routers 172.16.254.254;
            range 172.16.254.1 172.16.254.249;
            authoritative;

    (visitante) #show ip dhcp statistics

    Network Name           172.16.254.0/24
        Free leases        184
        Active leases      65
        Expired leases     0
        Abandoned leases   0

     

    Aruba Operating System Software.
    ArubaOS (MODEL: Aruba3600), Version 6.1.3.6
    Website: http://www.arubanetworks.com
    Copyright (c) 2002-2012, Aruba Networks, Inc.
    Compiled on 2012-12-11 at 12:51:05 PST (build 36470) by p4build

    ROM: System Bootstrap, Version CPBoot 1.3.1.0 (build 35189)
    Built: 2012-09-06 16:05:33
    Built by: p4build@re_client_35189


    Switch uptime is 3 days 20 hours 5 seconds
    Reboot Cause: User reboot.
    Supervisor Card
    Processor XLR 532 (revision C4) with 2016M bytes of memory.
    32K bytes of non-volatile configuration memory.
    512M bytes of Supervisor Card System flash (model=CF 512MB).

     



  • 4.  RE: Users not getting the IP addresses after they connect and disconnects.:

    Posted Mar 31, 2015 05:18 PM

    My problem persist. The devices not obtaning ip address, but if I fixed ip address on device, it conect in the network.

    Can you help me!


    trade100@localiza.com wrote:

    The Controller is the dhcp server on the networkI changed the configuration of the lease the ip, but the error remains.

     

    Thanks.

     

     

    interface vlan 700
            ip address 172.16.254.254 255.255.255.0
            ip nat inside

    vlan 700                172.16.254.254 / 255.255.255.0     up      up


    ip dhcp excluded-address 172.16.254.250 172.16.254.254
    ip dhcp pool 172.16.254.0/24
     default-router 172.16.254.254
     dns-server 172.16.254.254
     domain-name guest.localiza
     lease 0 1 0 0
     network 172.16.254.0 255.255.255.0
     authoritative

     

     

    visitante) #show ip dhcp database

    DHCP enabled

    # 172.16.254.0/24
    subnet 172.16.254.0 netmask 255.255.255.0 {
            default-lease-time 3600;
            max-lease-time 3600;
            option domain-name "guest.localiza";
            option vendor-class-identifier  "ArubaAP";
            option vendor-encapsulated-options  "10.1.1.217";
            option domain-name-servers 172.16.254.254;
            option routers 172.16.254.254;
            range 172.16.254.1 172.16.254.249;
            authoritative;

    (visitante) #show ip dhcp statistics

    Network Name           172.16.254.0/24
        Free leases        184
        Active leases      65
        Expired leases     0
        Abandoned leases   0

     

    Aruba Operating System Software.
    ArubaOS (MODEL: Aruba3600), Version 6.1.3.6
    Website: http://www.arubanetworks.com
    Copyright (c) 2002-2012, Aruba Networks, Inc.
    Compiled on 2012-12-11 at 12:51:05 PST (build 36470) by p4build

    ROM: System Bootstrap, Version CPBoot 1.3.1.0 (build 35189)
    Built: 2012-09-06 16:05:33
    Built by: p4build@re_client_35189


    Switch uptime is 3 days 20 hours 5 seconds
    Reboot Cause: User reboot.
    Supervisor Card
    Processor XLR 532 (revision C4) with 2016M bytes of memory.
    32K bytes of non-volatile configuration memory.
    512M bytes of Supervisor Card System flash (model=CF 512MB).

     


     

     

    Re: Users not getting the IP addresses after they connect and disconnects.:

    The Controller is the dhcp server on the networkI changed the configuration of the lease the ip, but the error remains.

     

    Thanks.

     

     

    interface vlan 700
            ip address 172.16.254.254 255.255.255.0
            ip nat inside

    vlan 700                172.16.254.254 / 255.255.255.0     up      up


    ip dhcp excluded-address 172.16.254.250 172.16.254.254
    ip dhcp pool 172.16.254.0/24
     default-router 172.16.254.254
     dns-server 172.16.254.254
     domain-name guest.localiza
     lease 0 1 0 0
     network 172.16.254.0 255.255.255.0
     authoritative

     

     

    visitante) #show ip dhcp database

    DHCP enabled

    # 172.16.254.0/24
    subnet 172.16.254.0 netmask 255.255.255.0 {
            default-lease-time 3600;
            max-lease-time 3600;
            option domain-name "guest.localiza";
            option vendor-class-identifier  "ArubaAP";
            option vendor-encapsulated-options  "10.1.1.217";
            option domain-name-servers 172.16.254.254;
            option routers 172.16.254.254;
            range 172.16.254.1 172.16.254.249;
            authoritative;

    (visitante) #show ip dhcp statistics

    Network Name           172.16.254.0/24
        Free leases        184
        Active leases      65
        Expired leases     0
        Abandoned leases   0

     

    Aruba Operating System Software.
    ArubaOS (MODEL: Aruba3600), Version 6.1.3.6
    Website: http://www.arubanetworks.com
    Copyright (c) 2002-2012, Aruba Networks, Inc.
    Compiled on 2012-12-11 at 12:51:05 PST (build 36470) by p4build

    ROM: System Bootstrap, Version CPBoot 1.3.1.0 (build 35189)
    Built: 2012-09-06 16:05:33
    Built by: p4build@re_client_35189


    Switch uptime is 3 days 20 hours 5 seconds
    Reboot Cause: User reboot.
    Supervisor Card
    Processor XLR 532 (revision C4) with 2016M bytes of memory.
    32K bytes of non-volatile configuration memory.
    512M bytes of Supervisor Card System flash (model=CF 512MB).

     



  • 5.  RE: Users not getting the IP addresses after they connect and disconnects.:

    Posted Mar 31, 2015 05:54 PM

    As Victor asked, can you please share 'show rights <role name>' of ther role the users have.

     

    You should have 'any any sv-dhcp permit' at the top of your acl. When the clients reconnect, they could be doing a dhcp renew, which being unicast may be blocked.



  • 6.  RE: Users not getting the IP addresses after they connect and disconnects.:

    Posted Mar 17, 2020 04:46 PM

    I implemented the fix referenced by Micheal, and after deleting the user again with the aaa user delete mac command, was able to successfully have them renew the lease and they are able to utilize the guest access again. Thank you!