network query; route command

Shelagh Manton oneida at tpg.com.au
Wed Mar 2 22:05:42 UTC 2005


Paul Howarth wrote:

> Shelagh Manton wrote:
>> Hello,
>> I've been reading up on networks and comparing what the NAG from TDLP has
>> to say and what my computer settings look like. Um... I did find a few
>> differences (problems?). I will be upgrading to ADSL sometime soon and
>> wanted to be more prepared as my ISP don't know nothing about Linux.
>> 
>> One thing which worries me is when I ask the route command to add or del
>> a network or IP address I get this message.
>> 
>> SIOCADDRT: Invalid argument
>> 
>> or SIOCDELRT: No such process
>> 
>> When I ask it for information "route -e" I get back a table which
>> includes an IP address I did not give it, and is not from My ISP. And of
>> course I can't delete it using the "route del 163.254.0.0" command
> 
> Are you sure it's not "169.254.0.0" rather than "163.254.0.0"?
> 
> What's the output of "netstat -rn" and what are the routes you want to
> add/remove?
> 
> Paul.
> 
Yes, when I look more carefully, that is the very IP address. I wanted to
follow the instructions of the NAG where it says to add the 127.0.0.1 lo
address with the route add command. The address it shows at present is
127.0.0.0 which is the lo network, and does not have 127.0.0.1 at all. Is
this a problem? 

[shelagh at pandorasbox shelagh]$ netstat -rn
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt
Iface
220.244.163.3   0.0.0.0         255.255.255.255 UH        0 0          0
ppp0
192.168.32.0    192.168.32.3    255.255.255.0   UG        0 0          0
eth0
192.168.32.0    0.0.0.0         255.255.255.0   U         0 0          0
eth0
169.254.0.0     0.0.0.0         255.255.0.0     U         0 0          0
eth0
127.0.0.0       0.0.0.0         255.0.0.0       U         0 0          0 lo
0.0.0.0         220.244.163.3   0.0.0.0         UG        0 0          0
ppp0

What I'm eventually hoping to achieve is understanding of NAT so that my 2
sons machines can access the internet through my internet connected
computer. But, just one slow step at a time, otherwise my brain might
explode.


Shelagh




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