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2 Messages

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80 Points

Sat, Oct 20, 2018 5:36 PM

DHCP server icx 7750

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?

Responses

Employee

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81 Messages

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1.9K Points

2 years ago

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?


52 Messages

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760 Points

2 years ago

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.

8 Messages

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130 Points

I don't know how

8 Messages

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130 Points

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

Employee

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305 Messages

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4.9K Points

2 years ago

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

2 Messages

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80 Points

2 years ago

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

214 Messages

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3.7K Points

2 years ago

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?

Employee

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146 Messages

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2.4K Points

2 years ago

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.