[Techtalk] "route del" Yields "SIOCDELRT: no such process"

[Kai MacTane]

Hi. I'm having a routing problem on my shiny new Mandrake 7.1 firewalling 
box. I think I can give the pertinent data most quickly this way:

[root at kitchengod kmactane]# hostname
kitchengod.RebelAngels.org
[root at kitchengod kmactane]# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:60:08:99:16:72
           inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:11124 errors:0 dropped:0 overruns:0 frame:0
           TX packets:10586 errors:0 dropped:0 overruns:0 carrier:0
           collisions:2 txqueuelen:100
           Interrupt:12 Base address:0xe800

eth1      Link encap:Ethernet  HWaddr 00:A0:CC:25:07:A2
           inet addr:64.81.50.199  Bcast:64.255.255.255  Mask:255.0.0.0
           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
           RX packets:10004 errors:0 dropped:0 overruns:0 frame:0
           TX packets:12276 errors:0 dropped:0 overruns:0 carrier:0
           collisions:124 txqueuelen:100
           Interrupt:5 Base address:0xec00

lo        Link encap:Local Loopback
           inet addr:127.0.0.1  Mask:255.0.0.0
           UP LOOPBACK RUNNING  MTU:3924  Metric:1
           RX packets:1805 errors:0 dropped:0 overruns:0 frame:0
           TX packets:1805 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0

[root at kitchengod kmactane]# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
kitchengod.Rebe *               255.255.255.255 UH    0      0        0 eth0
255.255.255.255 *               255.255.255.255 UH    0      0        0 eth0
kitchengod.Rebe *               255.255.255.255 UH    0      0        0 eth1
192.168.1.0     *               255.255.255.0   U     0      0        0 eth0
64.0.0.0        *               255.0.0.0       U     0      0        0 eth1
127.0.0.0       *               255.0.0.0       U     0      0        0 lo
default         dsl081-050-001. 0.0.0.0         UG    0      0        0 eth1
[root at kitchengod kmactane]# route del 64.0.0.0
SIOCDELRT: No such process
[root at kitchengod kmactane]#

 From this machine, I can get to most of the Internet -- but when I try to 
connect to anything in 64.0.0.0/8, I get "No route to host". This would be 
only a minor inconvenience, except that I have a client whose mail server 
is over at 64.152.73.20...

Can anyone tell me why my attempts to fix my routing table are denied?

Thanks in advance.

                                                 --Kai MacTane
----------------------------------------------------------------------
"The seasons don't fear the reaper,
  Nor do the wind, the sun and the rain.
  We can be like they are."
                                                 --Blue Öyster Cult,
                                                  "Don't Fear the Reaper"