Error fired by DHCPd upon adding VLAN interfaces



  • Hi,

    I am on the process of configuring VLANS but everytime I successfully created 1 vlan interface, dhcp will fire up an error and everything will lose their internet connections.  Below is the error encountered.  Hopefully someone would like to share their ideas on how to resolve this problem.  Thank you..

    Mar 10 13:40:41 pfSense64 php-fpm[68115]: /rc.newwanip: rc.newwanip: on (IP address: 172.16.9.1) (interface: VLAN201_GSCOMLAB[opt13]) (real interface: ix0_vlan201).
    Mar 10 13:40:41 pfSense64 check_reload_status: Reloading filter
    Mar 10 13:40:41 pfSense64 check_reload_status: Reloading filter
    Mar 10 13:40:41 pfSense64 php-fpm[77516]: /rc.newwanip: rc.newwanip: Info: starting on ix0_vlan109.
    Mar 10 13:40:41 pfSense64 php-fpm[77516]: /rc.newwanip: rc.newwanip: on (IP address: 172.16.10.1) (interface: VLAN109_GSOFFICES[opt12]) (real interface: ix0_vlan109).
    Mar 10 13:41:00 pfSense64 check_reload_status: Syncing firewall
    Mar 10 13:41:06 pfSense64 check_reload_status: Syncing firewall
    Mar 10 13:41:14 pfSense64 check_reload_status: Syncing firewall
    Mar 10 13:41:19 pfSense64 check_reload_status: Syncing firewall
    Mar 10 13:41:33 pfSense64 check_reload_status: Syncing firewall
    Mar 10 13:43:04 pfSense64 suricata[90360]: [1:2008581:3] ET P2P BitTorrent DHT ping request [Classification: Potential Corporate Privacy Violation] [Priority: 1] {UDP} 203.160.181.163:53394 -> 123.211.63.85:54065
    Mar 10 13:46:26 pfSense64 lighttpd[14140]: (connections.c.137) (warning) close: 22 Connection reset by peer
    Mar 10 13:48:04 pfSense64 suricata[90360]: [1:2008581:3] ET P2P BitTorrent DHT ping request [Classification: Potential Corporate Privacy Violation] [Priority: 1] {UDP} 203.160.181.163:65307 -> 120.145.15.232:50910
    Mar 10 13:50:01 pfSense64 check_reload_status: Syncing firewall
    Mar 10 13:50:05 pfSense64 php-fpm[36184]: /services_dhcp.php: The command '/usr/local/sbin/dhcpd -user dhcpd -group _dhcp -chroot /var/dhcpd -cf /etc/dhcpd.conf -pf /var/run/dhcpd.pid igb3 ix1 ix0 bxe0_vlan110 bxe0_vlan111 bxe0_vlan112 bxe0_vlan113 bxe0_vlan114 bxe0_vlan109 bxe0_vlan118' returned exit code '1', the output was 'Internet Systems Consortium DHCP Server 4.2.8 Copyright 2004-2015 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Wrote 0 deleted host decls to leases file. Wrote 0 new dynamic host decls to leases file. Wrote 237 leases to leases file. Multiple interfaces match the same subnet: bxe0 igb3 Multiple interfaces match the same shared network: bxe0 igb3 Listening on BPF/bxe0_vlan118/00:0e:1e:7f:4c:c0/172.16.8.0/26 Sending on  BPF/bxe0_vlan118/00:0e:1e:7f:4c:c0/172.16.8.0/26 Listening on BPF/bxe0_vlan109/00:0e:1e:7f:4c:c0/172.16.2.0/26 Sending on  BPF/bxe0_vlan109/00:0e:1e:7f:4c:c0/172.16.2.0/26 Listening on BPF/bxe0_vlan114/00:0e:1e:7f:
    Mar 10 13:50:05 pfSense64 check_reload_status: Reloading filter



  • @CrackBlue:

    Multiple interfaces match the same shared network

    What IP address ranges are you setting on your interfaces (external and internal)? And what DHCP parameters are you setting on each VLAN?

    Another thought: Are you using a VLAN-capable switch?



  • You have to have interfaces whose IP subnets overlap. Fix that.



  • Thank you.  I just realized the error after few seconds after clicking post button. :)


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