DHCP server icx 7750

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  • Question
  • Updated 5 days ago
  • Acknowledged
After upgrading icx 7750 from 08.0.40 to 08.0.80 My multiple DHCP servers is malfunctioning.

A PC can get a lease, but a iPhone or IP phone cannot get a lease. 

What can be wrong?
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Flemming Hansen

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Posted 4 weeks ago

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Hashim Bharoocha, Employee

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Hi Fleming,

So PC ONLY works and  sounds like  you have dedicated  DHCP  Dedicated servers?
Is that assumption is correct?

The more details the better for me to understand the issue.

If you compare the old configs from 8040 are they the same as new 8080 configs?


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Jardel Almeida

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Hi,

What does not work?
Do devices not get IP? Run a wireshark to identify what is impacting the problem, or see the VLWN / WLAN / ICX settings.
Share your configuration here to verify.
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Electa Smith

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I don't know how
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Electa Smith

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After factory reset I can't sign in even with super and sp-admin
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Martin, Official Rep

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I presume the PC is directly connected and the iphone via an access point.
Is the accesspoint working ? can you access it via the controller?

regards
Martin

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Flemming Hansen

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Hi Thanks for your reply. 

The iPhones are connected via WiFi, and the IP phones are hardwired. They will not optain an IP address. PC's get an IP address, via WiFi and hardwired. 
I got a guest network on another VLAN, which has a DHCP server on a Palo Alto firewall, and the iPhone can get an IP from there.

I will find the configs.

regards
Flemming
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NETWizz

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Are they within a different VLAN?

If yes, did you not save before the reload and perhaps loose some configuration settings such as the ip helper addresses?
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Jijo Panangat, Employee

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You may run a wire shark on the server/client and check if the iPhone gets an dhcp-offer from server, At least we will know in which phase it is failing in the DORA process.

Please open a tac case as this requires a troubleshooting session to isolate the problem.