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FransUrbo
FransUrbo
New Member
November 20, 2018
Question

DHCP server does not provide IP

  • November 20, 2018
  • 1 reply
  • 31100 views

I've setup a DHCP server pool to provide 10.0.1/24 and 10.0.4/24 on one of my interfaces. But I can't get an IP on one of my hosts! I see that the requests leaves the host and (something) is received by my Fortigate running "FortiOS v5.6.6 build1630 (GA)" on a "FortiGate 50E" running in NAT mode. But it won't hand out an ip.

 

The config is just a snippet from my real config, not the whole thing. But I've checked and double checked all MAC addresses etc and they are correct. Not sure what more I should include, but ask and I'll provide.

 

 

1 reply

Toshi_Esumi
SuperUser
Toshi_Esumi
SuperUser
November 20, 2018

The secondary subnets are all on the same broadcast domain with the primary. I wouldn't expect the FGT looks up the second DHCP scope. (I'm waiting somebody says "you're wrong" :)

emnoc
emnoc
New Member
November 20, 2018

I don't believe that's the issue. Is the DHCP-server status enabled? Typically if the DHCP-request comes in and nothing given is a sign the dhcp-server is not enabled.

 

find the pid and  kickstart it and if no pid, than set the status for the dhcp server to "enable"

 

http://socpuppet.blogspot...on-or-any-daemons.html

 

Ken Felix

 

ede_pfau
SuperUser
ede_pfau
SuperUser
November 21, 2018

I would also suspect that all 4 DHCP servers are seeing the request from the same MAC address and are withholding an offer because of that. You can easily test this by removing 3 of the 4 DHCP servers.

Instead of secondary addresses you could configure VLANs to avoid using the same broadcast domain.

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