Why can't I configure BFD for static routes on IAD2431 on ios 15.1(2)T when Feature Nav says its in there

Question

I am trying to configure BFD for static routing on a 2431 running IOS 15.1(2)T to detect and route around simple multihoming faults.  According to Cisco Feature Navigator, BFD for static routes is supported on c2430-ik9o3s-mz.151-2.T.bin.  But when I follow the config guide steps to configure it, IOS does not recognize the commands, such as:
ERC3-IAD2431-3(config)#int fa0/0
ERC3-IAD2431-3(config-if)#bfd ?
% Unrecognized command
ERC3-IAD2431-3(config-if)#
and:
ERC3-IAD2431-3(config)#ip route static bfd fa0/0 172.19.113.241 
% BFD is not supported on FastEthernet0/0
ERC3-IAD2431-3(config)#
Am I missing some prerequisite, or restriction?

Answer 1

Vignesh,
As requested:
ERC3-IAD2431-3#show version
Cisco IOS Software, 2400 Software (C2430-IK9O3S-M), Version 15.1(2)T, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Mon 19-Jul-10 16:23 by prod_rel_team
ROM: System Bootstrap, Version 12.3(7r)T2, RELEASE SOFTWARE (fc1)
ERC3-IAD2431-3 uptime is 1 week, 20 hours, 31 minutes
System returned to ROM by reload at 15:45:52 EDT Mon Oct 27 2014
System restarted at 15:47:56 EDT Mon Oct 27 2014
System image file is "flash:c2430-ik9o3s-mz.151-2.T.bin"
Last reload type: Normal Reload
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
[email protected].
Cisco IAD2431 (R527x) processor (revision 4.1) with 250880K/11264K bytes of memory.
Processor board ID FHK1444F1GM
R527x CPU at 225MHz, Implementation 40, Rev 3.1
2 FastEthernet interfaces
48 Serial interfaces
2 Channelized T1/PRI ports
1 Virtual Private Network (VPN) Module
DRAM configuration is 64 bits wide with parity disabled.
63K bytes of non-volatile configuration memory.
System fpga version is 250027
System readonly fpga version is 250027
Option for system fpga is 'system'.
126976K bytes of ATA System CompactFlash (Read/Write)
Configuration register is 0x2102
ERC3-IAD2431-3#show int fa0/0
FastEthernet0/0 is up, line protocol is up 
  Hardware is Gt96k FE, address is 5475.d026.3019 (bia 5475.d026.3019)
  Description: Uplink to TWC/Avaya VoIP Network
  Internet address is 24.30.210.144/27
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, 100BaseTX/FX
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 2000 bits/sec, 3 packets/sec
  5 minute output rate 1000 bits/sec, 2 packets/sec
     40541 packets input, 6155984 bytes
     Received 20517 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog
     0 input packets with dribble condition detected
     149623 packets output, 22178324 bytes, 0 underruns
     0 output errors, 0 collisions, 5 interface resets
     17 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
ERC3-IAD2431-3#show int fa0/1
FastEthernet0/1 is up, line protocol is up 
  Hardware is Gt96k FE, address is 5475.d026.301a (bia 5475.d026.301a)
  Internet address is 172.19.113.242/29
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec, 
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, 100BaseTX/FX
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:44, output 00:00:05, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     14829 packets input, 3324508 bytes
     Received 7916 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     1 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog
     0 input packets with dribble condition detected
     78596 packets output, 7819210 bytes, 0 underruns
     0 output errors, 0 collisions, 13 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
ERC3-IAD2431-3#
Thanks,
Alfy