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Keeping Instant AP up without an uplink

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  • 1.  Keeping Instant AP up without an uplink

    Posted Mar 21, 2014 12:32 PM

    I'm trying to use an Instant AP to measure RSSI/SNR for surveying purposes. We used to use a campus AP with a "backup" SSID that would always be up. Is there a way of keeping the Instant AP up and broadcasting the SSID even when there is no link to the Ethernet port? (Right now, I have a battery that supplies POE, but being a battery, there's no interface link.)

     

    I appreciate any insight on this. Thanks!



  • 2.  RE: Keeping Instant AP up without an uplink

    EMPLOYEE
    Posted Mar 21, 2014 12:37 PM

    Go to System > Uplink > Enforce Uplink: Ethernet

     

    enfore-upnlink.png



  • 3.  RE: Keeping Instant AP up without an uplink

    Posted Mar 21, 2014 03:14 PM

    Already did that. My configuration is identical to your screen shot, Tim. It still reboots.

     

    I also do already have it set to "Can be used without uplink". Still no dice.

     

     



  • 4.  RE: Keeping Instant AP up without an uplink

    EMPLOYEE
    Posted Apr 02, 2014 03:22 AM
    Can you try giving the AP a static address with the setenv commands?






    Sent from Windows Mail


  • 5.  RE: Keeping Instant AP up without an uplink

    Posted Apr 02, 2014 09:42 AM

    My issue was not putting the ap in standalone mode.



  • 6.  RE: Keeping Instant AP up without an uplink

    Posted Mar 21, 2014 03:41 PM

    Here's some pertinent parts of the (re)boot messages:

     

    Ethernet uplink not active yet
    Ethernet uplink not active yet
    *snip*
    Ethernet uplink not active yet
    
    *snip*
    
    Got all network params from APboot env. Skipping[   43.551940] bonding: bond0: releasing backup interface eth1
     DHCP
    [   43.644760] ethernet_device_event: dev eth1 is down
    10.0.0.1 255.255.255.0 10.0.0.1
    
    *snip*
    
    AP rebooted Thu Jan 1 00:07:42 UTC 1970; Gateway unreachable

     Here's items from my config:

     

    survey-ap225# sho uplink status
    
    Uplink preemption             :disable
    Uplink enforce                :eth0
    Ethernet uplink eth0        :DHCP
    Uplink Table
    ------------
    Type      State  Priority  In Use
    ----      -----  --------  ------
    eth0      DOWN   0         Yes
    Wifi-sta  INIT   6         No
    3G/4G     INIT   7         No
    Internet failover             :disable
    Max allowed test packet loss  :10
    Secs between test packets     :30
    VPN failover timeout (secs)   :180
    Internet check timeout (secs) :10
    ICMP pkt sent        :0
    ICMP pkt lost        :0
    Continuous pkt lost  :0
    VPN down time        :0
    
    
    
    survey-ap225# sho uplink config
    
    Uplink preemption             :disable
    Uplink enforce                :eth0
    Ethernet uplink eth0        :DHCP
    Internet failover             :disable
    Max allowed test packet loss  :10
    Secs between test packets     :30
    VPN failover timeout (secs)   :180
    Internet check timeout (secs) :10
    
    
    
    survey-ap225# sho ip int brief
    Interface                   IP Address / IP Netmask            Admin   Protocol
    br0                         10.0.0.1 / 255.255.255.0           up      up
    
    
    
    survey-ap225# sho ip route
    Kernel IP routing table
    Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
    10.0.0.0        0.0.0.0         255.255.255.0   U         0 0          0 br0
    172.31.98.0     0.0.0.0         255.255.254.0   U         0 0          0 br0
    0.0.0.0         10.0.0.1        0.0.0.0         UG        0 0          0 br0
    
    
    
    survey-ap225# ping 10.0.0.1
    Press 'q' to abort.
    PING 10.0.0.1 (10.0.0.1): 56 data bytes
    64 bytes from 10.0.0.1: icmp_seq=0 ttl=64 time=0.0 ms
    64 bytes from 10.0.0.1: icmp_seq=1 ttl=64 time=0.0 ms
    64 bytes from 10.0.0.1: icmp_seq=2 ttl=64 time=0.0 ms
    64 bytes from 10.0.0.1: icmp_seq=3 ttl=64 time=0.0 ms
    64 bytes from 10.0.0.1: icmp_seq=4 ttl=64 time=0.0 ms

     I appreciate everyone's assistance. I'm not sure why it's saying gateway is unreachable when I can ping it. The issue is that the AP is plugged into a battery that has an RJ-45 port that delivers POE. There's no 802.3 interface or linkstate, so for all intents and purposes, the enet0 on the IAP-225 is down.

     

    Is there a way to keep the AP up regardless of link state (similar to how a remote AP functions when it loses its uplink with a virtual-ap configured as "backup" or always on)?



  • 7.  RE: Keeping Instant AP up without an uplink
    Best Answer

    EMPLOYEE
    Posted Mar 21, 2014 04:41 PM

    Ryan,

     

    Did you convert it to standalone mode first?  Check out the thread post here http://community.arubanetworks.com/t5/Unified-Wired-Wireless-Access/Site-Survey-with-IAP-Manual/m-p/57274/highlight/true#M549 by Pmonardo...

     



  • 8.  RE: Keeping Instant AP up without an uplink

    Posted Mar 24, 2014 09:16 AM

    Thanks, Colin. I overlooked that step. Things seem stable now.



  • 9.  RE: Keeping Instant AP up without an uplink

    Posted Mar 21, 2014 03:09 PM

    Under WLAN Settings, click Show advanced options, select "Can be used without uplink"

     

    RAP_NO_Uplink.JPG