Can not use Syn-scan or any root scan with MacOSX 10.4.11, Nmap 4.76

[Myshkin LeVine <myshlev () mac com>]

Hello All,
             I am using Nmap v4.76 on MacOSX 10.4.11. I searched the 
mailing-list archives and found several reports of my kind of problem, 
but did not find any solution. When running nmap I cannot use the 
Syn-scan nor run any scan as root. When I try the Syn-scan I get an 
error message: "WARNING: Unable to find appropriate interface for system 
route to 10.5.67.1" That address is my router/DSL modem. I can however 
run scans as root when scanning localhost.
            After reading all the related posts I see that 
troubleshooters will ask for the output of both nmap --iflist & ifconfig 
-a. I have seen other posters offer also the output of netstat -rn so 
below is the output of all 3 of those commands:

myshlevs-computer:~ myshlev$ nmap --iflist

Starting Nmap 4.76 ( http://nmap.org ) at 2008-11-27 21:33 EST
************************INTERFACES************************
DEV  (SHORT) IP/MASK                TYPE          UP  MAC
lo0     (lo0)        127.0.0.1/8              loopback      up
ppp0  (ppp0)      141.153.157.101/16  point2point  up

WARNING: Unable to find appropriate interface for system route to 10.5.67.1
WARNING: Unable to find appropriate interface for system route to 10.5.67.1
WARNING: Unable to find appropriate interface for system route to 10.5.67.1
WARNING: Unable to find appropriate interface for system route to 10.5.67.1
WARNING: Unable to find appropriate interface for system route to 10.5.67.1
WARNING: Unable to find appropriate interface for system route to 10.5.67.1
WARNING: Unable to find appropriate interface for system route to 10.5.67.1
WARNING: Unable to find appropriate interface for system route to 10.5.67.1
**************************ROUTES**************************
DST/MASK    DEV  GATEWAY
10.5.67.1/32    ppp0  141.153.157.101
127.0.0.1/32    lo0    127.0.0.1
127.0.0.0/8      lo0    127.0.0.1

myshlevs-computer:~ myshlev$
myshlevs-computer:~ myshlev$
myshlevs-computer:~ myshlev$
myshlevs-computer:~ myshlev$
myshlevs-computer:~ myshlev$ ifconfig -a
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
       inet 127.0.0.1 netmask 0xff000000
       inet6 ::1 prefixlen 128
       inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
stf0: flags=0<> mtu 1280
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
       ether 00:0a:95:cf:ea:c0
       media: autoselect (100baseTX <full-duplex>) status: active
       supported media: none autoselect 10baseT/UTP <half-duplex> 
10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,hw-loopback> 
100baseTX <half-duplex> 100baseTX <full-duplex> 100baseTX 
<full-duplex,hw-loopback> 1000baseT <full-duplex> 1000baseT 
<full-duplex,hw-loopback> 1000baseT <full-duplex,flow-control> 1000baseT 
<full-duplex,flow-control,hw-loopback>
en1: flags=8822<BROADCAST,SMART,SIMPLEX,MULTICAST> mtu 1500
       ether 00:0d:93:7d:b9:df
       media: autoselect (<unknown type>) status: inactive
       supported media: autoselect
fw0: flags=8822<BROADCAST,SMART,SIMPLEX,MULTICAST> mtu 4078
       lladdr 00:0a:95:ff:fe:cf:ea:c0
       media: autoselect <full-duplex> status: inactive
       supported media: autoselect <full-duplex>
ppp0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1492
       inet 141.153.157.101 --> 10.5.67.1 netmask 0xffff0000
myshlevs-computer:~ myshlev$
myshlevs-computer:~ myshlev$
myshlevs-computer:~ myshlev$
myshlevs-computer:~ myshlev$
myshlevs-computer:~ myshlev$ netstat -rn
Routing tables

Internet:
Destination        Gateway              Flags     Refs         Use   
Netif   Expire
default              10.5.67.1             UGSc         7          14    
ppp0
10.5.67.1          141.153.157.101   UH            8            0    ppp0
127                  127.0.0.1              UCS          0            
0    lo0
127.0.0.1          127.0.0.1              UH           9    228041    lo0
141.153            ppp0                    USc           0            
0    ppp0

Internet6:
Destination                         Gateway                     
Flags      Netif   Expire
::1                                     link#1                        
UHL       lo0
fe80::%lo0/64                     fe80::1%lo0               Uc          lo0
fe80::1%lo0                        link#1                        
UHL      lo0
ff01::/32                             ::1                             
U           lo0
ff02::/32                             ::1                             
UC         lo0
myshlevs-computer:~ myshlev$

I would be happy to provide any other infomation anyone needs. What can 
I do About this?
               Take care,
                              Myshkin LeVine


 

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