{
  "arp_cache_base_reachable": "^$|^[1-9]{1}[0-9]{0,4}$",
  "arp_cache_timeout": "normal|min-dhcp-lease|custom",
  "broadcast_ping": "true|false",
  "dhcp_relay_agents_packets": "append|discard|forward|replace|^$",
  "dhcp_relay_hop_count": "([1-9]|[1-8][0-9]|9[0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])|^$",
  "dhcp_relay_max_size": "(6[4-9]|[7-9][0-9]|[1-8][0-9]{2}|9[0-8][0-9]|99[0-9]|1[0-3][0-9]{2}|1400)|^$",
  "dhcp_relay_port": "[1-9][0-9]{0,3}|[1-5][0-9]{4}|[6][0-4][0-9]{3}|[6][5][0-4][0-9]{2}|[6][5][5][0-2][0-9]|[6][5][5][3][0-5]|^$",
  "dhcp_relay_server_1": "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$|^$",
  "dhcp_relay_server_2": "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$|^$",
  "dhcp_relay_server_3": "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$|^$",
  "dhcp_relay_server_4": "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$|^$",
  "dhcp_relay_server_5": "^(([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$|^$",
  "dhcpd_hostfile_update": "true|false",
  "dhcpd_use_dnsmasq": "true|false",
  "dnsmasq_all_servers": "true|false",
  "echo_server": "[^\\\"\\' ]{1,255}",
  "firewall_guest_default_log": "true|false",
  "firewall_lan_default_log": "true|false",
  "firewall_wan_default_log": "true|false",
  "ftp_module": "true|false",
  "geo_ip_filtering_block": "block|allow",
  "geo_ip_filtering_countries": "^([A-Z]{2})?(,[A-Z]{2}){0,149}$",
  "geo_ip_filtering_enabled": "true|false",
  "geo_ip_filtering_traffic_direction": "^(both|ingress|egress)$",
  "gre_module": "true|false",
  "h323_module": "true|false",
  "icmp_timeout": "",
  "lldp_enable_all": "true|false",
  "mdns_enabled": "true|false",
  "mss_clamp": "auto|custom|disabled",
  "mss_clamp_mss": "[1-9][0-9]{2,3}",
  "offload_accounting": "true|false",
  "offload_l2_blocking": "true|false",
  "offload_sch": "true|false",
  "other_timeout": "",
  "pptp_module": "true|false",
  "receive_redirects": "true|false",
  "send_redirects": "true|false",
  "sip_module": "true|false",
  "syn_cookies": "true|false",
  "tcp_close_timeout": "",
  "tcp_close_wait_timeout": "",
  "tcp_established_timeout": "",
  "tcp_fin_wait_timeout": "",
  "tcp_last_ack_timeout": "",
  "tcp_syn_recv_timeout": "",
  "tcp_syn_sent_timeout": "",
  "tcp_time_wait_timeout": "",
  "tftp_module": "true|false",
  "udp_other_timeout": "",
  "udp_stream_timeout": "",
  "upnp_enabled": "true|false",
  "upnp_nat_pmp_enabled": "true|false",
  "upnp_secure_mode": "true|false",
  "upnp_wan_interface": "WAN|WAN2"
}