VOIP Phones,CIsco AP and Accesscontrol are not getting IP from DHCP server in PF



  • HI

    VOIP Phones, Cisco AP, and Access Control are not getting IP from DHCP server. Only LAPTOP and PC 's are getting IP. Kindly help me to fix that issues.

    Thanks in Advance.



  • There is nothing in pfSense (or any other DHCP server) that would cause that.  Do you have VLANs configured for those phones and APs?  If so, you'd need to enable the DHCP server on the VLAN.



  • I have configured DHCP server on Pfsense and also i have enabled DHCP server on all the Vlans. Thanks!

    Primary DHCp Server:

    LAN Interface 192.168.0.4/24
    DHCP Server  192.168.0.21 to 192.168.0.254
    Configured failover Peer 192.168.0.5

    Secondary DHCP server :
    LAN INterface 192.168.0.5/24
    DHCP Server 192.168.0.21 to 192.168.0.254
    Failover Peer Ip 192.168.0.4

    CARP IP for this interface 192.168.0.8/24

    Replication Working fine.

    THis is MY configuration. DHCP leasing is working PC and LAptop. But IP Not leasing for VOIP Phones.

    I found logs in pfsense. Please find the below

    Logs for when am connecting VOIP Phone in Our Network,

    Mar 21 01:38:03 dhcpd DHCPDISCOVER from 00:15:65:63:4d:ec (SIP-T20P) via 192.168.1.3
    Mar 21 01:38:03 dhcpd DHCPOFFER on 192.168.1.172 to 00:15:65:63:4d:ec (SIP-T20P) via 192.168.1.3
    Mar 21 01:38:03 dhcpd DHCPDISCOVER from 00:15:65:a2:f6:ee (SIP-T21P_E2) via 192.168.13.3
    Mar 21 01:38:03 dhcpd DHCPOFFER on 192.168.13.42 to 00:15:65:a2:f6:ee (SIP-T21P_E2) via 192.168.13.3



  • You haven't provided anywhere near enough information to even begin to help you.  We aren't dentists.  Don't make us pull the details like a bad tooth.  Details about your LAN config and DHCP config would be a start…


  • Galactic Empire

    Is there only the one DHCP server per subnet or two ?



  • one DHCP server per one subnet


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