Manually setting MTUs

[Andrew Kenton Mitchell]

If I look at /etc/sysconfig/network-scripts/ifcfg-bnep0 the MTU is 
1691.  This is the minimum specified by 
http://www.bluetooth.com/Bluetooth/Technology/Works/BNEP.htm:

[root at LTSecond ~]# cat /etc/sysconfig/network-scripts/ifcfg-bnep0
# Broadcom BCM92035DGROM USB Bluetooth Adapter - Bluetooth: BNEP 
(Ethernet Emulation) ver 1.2
DEVICE=bnep0
HWADDR=00:0E:A1:33:A1:22
ONBOOT=no
BOOTPROTO=dhcp
IPV6INIT=no
NM_CONTROLLED=yes
DNS3=192.168.0.1
DNS2=69.94.123.190
DNS1=69.94.123.189
USERCTL=no
PEERDNS=no
MTU=1691
[root at LTSecond ~]#

However, ifconfig shows 1500:

[root at LTSecond ~]# ofcpnfig bnep0
-bash: ofcpnfig: command not found
[root at LTSecond ~]# ifcpnfig bnep0
-bash: ifcpnfig: command not found
[root at LTSecond ~]# ifconfig bnep0
bnep0     Link encap:Ethernet  HWaddr 00:0E:A1:33:A1:22 
          inet addr:192.168.0.17  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::20e:a1ff:fe33:a122/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:25756 errors:0 dropped:0 overruns:0 frame:0
          TX packets:17745 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:36149865 (34.4 MiB)  TX bytes:1212843 (1.1 MiB)

[root at LTSecond ~]#

Anybody have any ideas why this won't manually set?

Thanks for any help,

-- 
Colonel Andrew Kenton Mitchell, MSISPM, GSAE, RHCE, RHCT, LPI, LPI-2 CCNA, CCNP
Vice President of Global Network Operations and Data Infrastructure
WDI Data Enterprises, Inc.
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