Thank you! As for the file, here it is (part of it, anyway):
<interfaces><wan><enable><if>pppoe0</if>
<blockpriv><blockbogons><ipaddr>pppoe</ipaddr>
<spoofmac></spoofmac></blockbogons></blockpriv></enable></wan>
<lan><enable><if>vmx1</if>
<ipaddr>192.168.1.1</ipaddr>
<subnet>24</subnet>
<ipaddrv6>2001:67c:2158:a019::1</ipaddrv6>
<subnetv6>120</subnetv6>
<blockbogons><spoofmac><mtu>9000</mtu></spoofmac></blockbogons></enable></lan>
<opt1><if>vmx2</if>
<enable><spoofmac><mtu>9000</mtu></spoofmac></enable></opt1>
<opt2><if>vmx0</if>
<enable><ipaddr>dhcp</ipaddr>
<dhcphostname><alias-address><alias-subnet>32</alias-subnet>
<dhcprejectfrom><adv_dhcp_pt_timeout><adv_dhcp_pt_retry><adv_dhcp_pt_select_timeout><adv_dhcp_pt_reboot><adv_dhcp_pt_backoff_cutoff><adv_dhcp_pt_initial_interval><adv_dhcp_pt_values>SavedCfg</adv_dhcp_pt_values>
<adv_dhcp_send_options><adv_dhcp_request_options><adv_dhcp_required_options><adv_dhcp_option_modifiers><adv_dhcp_config_advanced><adv_dhcp_config_file_override><adv_dhcp_config_file_override_path><blockbogons><spoofmac></spoofmac></blockbogons></adv_dhcp_config_file_override_path></adv_dhcp_config_file_override></adv_dhcp_config_advanced></adv_dhcp_option_modifiers></adv_dhcp_required_options></adv_dhcp_request_options></adv_dhcp_send_options></adv_dhcp_pt_initial_interval></adv_dhcp_pt_backoff_cutoff></adv_dhcp_pt_reboot></adv_dhcp_pt_select_timeout></adv_dhcp_pt_retry></adv_dhcp_pt_timeout></dhcprejectfrom></alias-address></dhcphostname></enable></opt2>
<opt3><if>bridge0</if>
<enable><spoofmac><mtu>9000</mtu></spoofmac></enable></opt3>
<opt4><if>gif0</if>
<enable><blockbogons><spoofmac><mtu>1472</mtu></spoofmac></blockbogons></enable></opt4>
<opt5><if>vmx1_vlan4</if>
<enable><ipaddr>192.168.2.1</ipaddr>
<subnet>24</subnet>
<ipaddrv6>2001:67c:2158:a019::2:1</ipaddrv6>
<subnetv6>120</subnetv6>
<blockbogons><spoofmac><mtu>9000</mtu></spoofmac></blockbogons></enable></opt5></interfaces>