Dhcp cant get Microsoft Classless Static Route (option 249)

[ncat]

Hello.
My ISP uses option 249 to send routes.
What i ve got (modified interfaces.inc)

Dec 27 23:20:41	dhclient[32765]: unknown dhcp option value 0xf9
Dec 27 23:20:41	dhclient[32765]: unknown dhcp option value 0xf9
Dec 27 23:20:41	dhclient[32765]: DHCPACK from 10.4.37.152
Dec 27 23:20:41	dhclient[32765]: DHCPREQUEST on re0 to 255.255.255.255 port 67
Dec 27 23:20:37	dhclient[32765]: DHCPREQUEST on re0 to 255.255.255.255 port 67
Dec 27 23:20:35	dhclient[32765]: DHCPREQUEST on re0 to 255.255.255.255 port 67
Dec 27 23:20:35	dhclient: PREINIT
Dec 27 23:20:35	dhclient[32765]: ^
Dec 27 23:20:35	dhclient[32765]: ^
Dec 27 23:20:35	dhclient[32765]: request option-249, option
Dec 27 23:20:35	dhclient[32765]: request option-249, option
Dec 27 23:20:35	dhclient[32765]: /var/etc/dhclient_wan.conf line 2: option: unexpected option name.
Dec 27 23:20:35	dhclient[32765]: /var/etc/dhclient_wan.conf line 2: option: unexpected option name.

unknown dhcp option value 0xf9: hex to dec means 249 which is "DHCP Option Code 249 (0xF9) - Microsoft Classless Static Route Option"
Is there any solution to "teach" pfsense work with them?
Thanks.

[NOYB]

Here's how I deal with the incomplete implementation of DHCP Client.

Screen shots and old 2.0 patch here:
DHCP Client Additional Custom Options Patch
http://forum.pfsense.org/index.php/topic,40194.0.html

2.1 patch here:
Advanced DHCP Client Options & Config File Override
  Protocol Timing
  Send Options
  Request Options
  Require Options
  Option Modifiers

https://github.com/bsdperimeter/pfsense/pull/275

Optional config override file example from 2.0.1.

# Actiontec MI424-WR Router Impersonation

#	ISP:		Frontier FiOS
#	Router Make:	Actiontec
#	Router Model:	MI424WR-GEN2
#	Router HW:	Rev. F
#	Router FW:	20.12.2.4

# pfSense 2.0.1 (FreeBSD 8.1)

#interface "de1" {
 interface "{interface}" {

# DHCP Protocol Timing Values
timeout 60;
retry 1;
select-timeout 0;
initial-interval 1;

#bootp-broadcast-always;						# Bootp flags: 0x8000 (Broadcast)

# DHCP Protocol Options
 send dhcp-class-identifier "Wireless Broadband Router";	# Option 60	## Hard Coded Class Identifier
 send dhcp-client-identifier "";					# Option 61	## Blank to Prevent Send

#send host-name "Wireless_Broadband_Router";			# Option 12	## Hard Coded Host Name
 send host-name "{hostname}";					# Option 12	## Obtained From Web Configurator (WAN Hostname Setting)

 send domain-name "home";						# Option 15	## Hard Coded Domain Name

# V-I Vendor-specific Information					# Option 125	## Hard Coded MAC
#send option-125 "\x00\x00\x0d\xe9\x1f\x01\x06000FB3\x02\x0c00180160EB84\x03\x07MI424WR";
#send option-125 00:00:0d:e9:1f:01:06:30:30:30:46:42:33:02:0c:30:30:31:38:30:31:36:30:45:42:38:34:03:07:4d:49:34:32:34:57:52;

# V-I Vendor-specific Information					# Option 125	## Obtained From Web Configurator (WAN MAC Address Spoof Setting)
#send option-125 "\x00\x00\x0d\xe9\x1f\x01\x06000FB3\x02\x0c{mac_addr_asciiU}\x03\x07MI424WR";
#send option-125 00:00:0d:e9:1f:01:06:30:30:30:46:42:33:02:0c:{mac_addr_hexU:}:03:07:4d:49:34:32:34:57:52;

# Parameter Request List						# Option 55	## Hard Coded Parameter Request List
#request subnet-mask, broadcast-address, time-offset, routers, domain-name, domain-name-servers, time-servers, log-servers, default-ip-ttl, interface-mtu, vendor-encapsulated-options, dhcp-requested-address, dhcp-lease-time, dhcp-server-identifier, dhcp-parameter-request-list, dhcp-class-identifier, dhcp-client-identifier, www-server, option-125;
 request subnet-mask, broadcast-address, time-offset, routers, domain-name, domain-name-servers, time-servers, log-servers, default-ip-ttl, interface-mtu, vendor-encapsulated-options, dhcp-requested-address, dhcp-lease-time, dhcp-server-identifier, dhcp-parameter-request-list, dhcp-class-identifier, dhcp-client-identifier, www-server;

 require subnet-mask, domain-name-servers, routers;		# These are required by the client

 script "/sbin/dhclient-script";
}