I would like to know if you guys have seem this happening... it looks like a bug to me...
Here is the Scenario that worksAP for example in a network 192.168.1.0/24 i got a DHCP server on that networkThe AP gets its address via DHCP everything works correctly there
Scenario in which it doesnt work.
The AP is on the network 192.168.1.0/24The DHCP Server is on the network 192.168.2.0/24On the switch i got an ip helper pointing to the DHCP server which is on the 192.168.2.0/24 networkThe ip helper WORKS correctly because i tested it with my computer and my computer get the DHCP IP address.
As you see in the booting processAG7240: done cfg2 0x7115 ifctl 0x10000 miictrl ADDRCONF(NETDEV_CHANGE): bond0: link becomes readyPicked up default IP a9fe7695, rand 7695Default IP is ready
DHCP timed out.Default IP comes up.ip_time_handler: Got ip and packets on bond0 Started master election 4-0DHCP timed out.Default IP comes up.169.254.118.149 255.255.0.0Starting Webserver
You see it gets the default ip addresss 169.x.x.x
Now if i reboot the AP and enter in APboot MODE and do this
apboot> dhcpeth0 up: 100 Mb/s full duplexDHCP broadcast 1DHCP IP address: 172.28.1.11DHCP subnet mask: 255.255.255.0DHCP def gateway: 172.28.1.1DHCP DNS server: 172.16.3.215DHCP DNS domain: carloslab.localapboot>
You see it gets the IP...
I just want to confirm is this is a bug, or if im doing something incorrectly.
I think Aruba Support @ 1800-WIFILAN can help you confirm if this is a bug or not.
What is the OS version you are running?
the lastest firmware to download...
I already got a case open... but i wanted to know if you guys had the same issue ? or smoeone succesfully gave dhcp with ip helper to the instant APs?
DHCP relay works fine in my setup, I used a H3C switch, which switch you used?
It seems work fine on H3C and Cisco Switch, but realy reproduced on Alcatel-lucent Switch.
Well thats weird... with the one that it should work its with alcatel switches as, Alcatel sells Wireless controllers of aruba networks...
Ill try with another model to see if it works...
I also got the lastest maintanice release of my alcatel switch...
I try to change the Ip helper forward delay to 0 (default 3), It works for me, but It does not make sense, with same delay time can forward some discover packets success, Other discover packets failed.
-> show ip helper
Ip helper : Forward Delay(seconds) = 0,
Max number of hops = 5,
Relay Agent Information = Disabled,
DHCP Snooping Status = Disabled
DHCP Snooping Bypass Opt82-Check = Disabled,
DHCP Snooping Opt82 Format = Base MAC,
DHCP Snooping Opt82 String = 00:e0:b1:c6:a2:c2,
DHCP Snooping Binding DB Status = Disabled,
PXE support = Disabled,
Forward option = standard Vlan Number NA Bootup Option Enable Bootup Packet Option DHCP Forwarding Address : 10.65.77.2 UDP Relay on Default VRF = Enabled
i didnt see your asnwer! i just test what you said it work perfectly now
Thank you very much man kudos!!!!!!
how did you figured that out? like you says it make no sense...
Lets me try with my demo products.
Sames setup working perfect over here. Using Firewalls for dhcp relay.
Do you have any mgmt vlan configured ?
This thread is several years old. If there are new issues, please start a new thread for better visibility.
May be you need to install a sniffer on the network of your client to know who equipment send the IP 172.x.x.x. (Ip conflict) Also you can help you the IMC software with the NTM module (Demo) to resolved this issue. May be has another DHCP server on the network.
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