running internet on the mini2440

Forum: Linux
Piyush 
Hello Guys 


I want to run the internet in my mini2440 but I am not able to do so .

Actually I have the cable modem connection of the internet and when I
connect the mini2440 and type in the console of mini:

ping www.google.com


it just says nothing

So I am not able to get  where is the problem

The configuration of my mini eth0 is :

[root@FriendlyARM /]# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 08:90:90:90:90:90
inet addr:192.168.1.230 Bcast:192.168.1.255 Mask:255.255.255.0
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:51 Base address:0x4300 


and the eth0 config of my computer is :


piyush@piyush-desktop:~$ ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:1b:fc:c5:1a:12
inet addr:116.74.41.85 Bcast:116.74.47.255 Mask:255.255.248.0
inet6 addr: fe80::21b:fcff:fec5:1a12/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:15253 errors:372 dropped:0 overruns:0 frame:372
TX packets:15546 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:13592188 (13.5 MB) TX bytes:2334744 (2.3 MB)



Please help me guys how can I connect internet to my mini2440 board.


Thank you

Tuxerito 
You need to say more information.

You are using DHCP or static IPs?
What about of the DNS?

Do a ping to 8.8.8.8 if response then it's a problem of DNS.

Piyush 
hello tuxerito 

first of all thanks for replying.

What else informaion you need about my mini board configuration :

My miniboard has dm9000 ethernet controller which has it's ethernet
configuration as:


Static IP : 192.168.1.230

Mask :  255.255.255.0 

Gateway :   192.168.1.1

DNS  :  192.168.1.1

MAC : 08:90:90:90:90:90


now the internet connection of my computer is through a cable modem with
the DHCP network and it's not the static one.

and on the execution of command on the mini board I get this one:

[root@FriendlyARM /]# ifconfig eth0                                        
                                          
eth0      Link encap:Ethernet  HWaddr 08:90:90:90:90:90                    
                                          
          inet addr:192.168.1.230  Bcast:192.168.1.255  Mask:255.255.255.0 
                                          
          UP BROADCAST MULTICAST  MTU:1500  Metric:1                       
                                          
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0               
                                          
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0             
                                          
          collisions:0 txqueuelen:1000                                     
                                          
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)                           
                                          
          Interrupt:51 Base address:0x4300     


and yes I did the pinging to 8.8.8.8 on connecting through my internet
cable

and got this result:

[root@FriendlyARM /]# ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8): 56 data bytes


So according to you its not a DNS problem I think .


So where is the problem.


Please tell me.


Thank you

Piyush 
Also one more thing I want to tell that on connecting the ethernet cable to
my mini2440 I get this information in it's terminal:


[root@FriendlyARM /]# eth0: link up, 100Mbps, full-duplex, lpa 0x05C1 


So it means that I am getting the signal in the mini board but I am not
getting the internet.


Thank you

Piyush 
and on removing the cable it gives the following signal:


[root@FriendlyARM share]# eth0: link down



THanks

Tuxerito 
Use DHCP on the board or configure a IP,mask,gateway and DNS according
configuration's modem

Piyush 
thanks tuxerito for your reply

and I think this would be a sily question to ask but I want to know that
how can I get all the data I mean IP,mask,gateway and DNS of my modem's
configuration.


Please give me the command to get this I am able to get some of them but
not all of them.


Thank you

Piyush 
hello tuxeirito 


as you said:

Do a ping to 8.8.8.8 if response then it's a problem of DNS.

is not it " Do a ping to 8.8.8.8 if not response then it's a problem of
DNS. "  because the above address is a public dns and it reply when I run
it on my computer.


Thank you

Tuxerito 
If a ping to 8.8.8.8 response and a ping to www.google.com not, then it is
a problem of DNS(configured on your system) because de system can't resolve
the IP of the host(www.google.com). The system use DNS to translate a
hostname(domain) to a IP, if this point fails then the problem it is the
DNS server. You can test this changing the DNS of your PC to a invalid DNS,
then try to acces a Google via http://www.google.com, you will see a error
but if you try via http://201.245.193.147/ you will see the Google's page.

I told you "do a ping to 8.8.8.8" because that IP it's a public IP(Google
DNS) and if that ping response it's because you have access to internet but
the system can't surf using hostnames.


If you do a ping to 192.168.1.1, what do you get?

In your PC execute
route -n
and write here the result.


Sorry for bad English

Piyush 
hello tuxerito

on pinging 192.168.1.1 I get this result:

PS C:\Users\Piyush Pandey> ping 192.168.1.1

Pinging 192.168.1.1 with 32 bytes of data:
Reply from 192.168.1.1: bytes=32 time=59ms TTL=245
Reply from 192.168.1.1: bytes=32 time=59ms TTL=245
Reply from 192.168.1.1: bytes=32 time=59ms TTL=245
Reply from 192.168.1.1: bytes=32 time=59ms TTL=245

Ping statistics for 192.168.1.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 59ms, Maximum = 59ms, Average = 59ms


But I didn't get your point of using route -n , sorry for that as I am new
to networking , well anyways I am showing you the result when I typed the
route -n:


PS C:\Users\Piyush Pandey> route -n
ROUTE.EXE : 
At line:1 char:6
+ route <<<<  -n
    + CategoryInfo          : NotSpecified: (:String) [], RemoteException
    + FullyQualifiedErrorId : NativeCommandError
 
Manipulates network routing tables.

ROUTE [-f] [-p] [-4|-6] command [destination]
                  [MASK netmask]  [gateway] [METRIC metric]  [IF interface]

  -f           Clears the routing tables of all gateway entries.  If this
is
               used in conjunction with one of the commands, the tables are
               cleared prior to running the command.
               
  -p           When used with the ADD command, makes a route persistent
across
               boots of the system. By default, routes are not preserved
               when the system is restarted. Ignored for all other
commands, 
               which always affect the appropriate persistent routes. This 
               option is not supported in Windows 95.
               
  -4           Force using IPv4.

  -6           Force using IPv6. 
  
  command      One of these:
                 PRINT     Prints  a route
                 ADD       Adds    a route
                 DELETE    Deletes a route
                 CHANGE    Modifies an existing route    
  destination  Specifies the host.
  MASK         Specifies that the next parameter is the 'netmask' value.
  netmask      Specifies a subnet mask value for this route entry.
               If not specified, it defaults to 255.255.255.255.
  gateway      Specifies gateway.
  interface    the interface number for the specified route.
  METRIC       specifies the metric, ie. cost for the destination.

All symbolic names used for destination are looked up in the network
database
file NETWORKS. The symbolic names for gateway are looked up in the host
name
database file HOSTS.

If the command is PRINT or DELETE. Destination or gateway can be a
wildcard,
(wildcard is specified as a star '*'), or the gateway argument may be
omitted.

If Dest contains a * or ?, it is treated as a shell pattern, and only
matching destination routes are printed. The '*' matches any string,
and '?' matches any one char. Examples: 157.*.1, 157.*, 127.*, *224*.

Pattern match is only allowed in PRINT command.
Diagnostic Notes:
    Invalid MASK generates an error, that is when (DEST & MASK) != DEST.
    Example> route ADD 157.0.0.0 MASK 155.0.0.0 157.55.80.1 IF 1
             The route addition failed: The specified mask parameter is
invalid. (Destination & Mask) != Destination.

Examples:

    > route PRINT
    > route PRINT -4
    > route PRINT -6
    > route PRINT 157*          .... Only prints those matching 157*
    
    > route ADD 157.0.0.0 MASK 255.0.0.0  157.55.80.1 METRIC 3 IF 2
             destination^      ^mask      ^gateway     metric^    ^
                                                         Interface^
      If IF is not given, it tries to find the best interface for a given 
      gateway.
    > route ADD 3ffe::/32 3ffe::1
    
    > route CHANGE 157.0.0.0 MASK 255.0.0.0 157.55.80.5 METRIC 2 IF 2
    
      CHANGE is used to modify gateway and/or metric only.
    
    > route DELETE 157.0.0.0
    > route DELETE 3ffe::/32




So please tell me what I am supposed to do now.


Thanks

Tuxerito 
You must execute ping in your board.
You must execute route -n on your PC but in GNU/Linux(In your first
message, you wrote that you execute ifconfig on your PC so I supose that
you are runing GNU/linux. You got a error because on Windows the syntaxis
it's diferent.

Piyush 
hello tuxerito 

I did what you said:


I pfirst changed the ip address , and mask of the mini board by getting
them from the command eth0 in my computer:

inet addr:116.74.41.85  Bcast:116.74.47.255  Mask:255.255.248.0

I put this ip address in the mini board instead of 192.168.1.230

inet addr:116.74.41.85 


and the mask I put this at the place of 255.255.255.0

Mask : 255.255.248.0


Than I got the DNS from this command in my PC :

cat /etc/resolv.conf

and got this result:

piyush@piyush-desktop:~$ cat /etc/resolv.conf 
# Generated by NetworkManager
nameserver 202.88.216.4

I than changed the DNS in mini from 192.168.1.1 to 202.88.216.4


than I changed the gateway from 192.168.1.1 to 116.74.40.1 


and saved the above configuration in  the /etc/eth0-settings file of my
mini2440


Now when I connect the ethernet cable to the board and run the command :

[root@FriendlyARM /]# ping 116.74.41.85
PING 116.74.41.85 (116.74.41.85): 56 data bytes
64 bytes from 116.74.41.85: seq=0 ttl=64 time=0.925 ms
64 bytes from 116.74.41.85: seq=1 ttl=64 time=0.452 ms
64 bytes from 116.74.41.85: seq=2 ttl=64 time=0.438 ms
64 bytes from 116.74.41.85: seq=3 ttl=64 time=0.455 ms


but when I ping 192.168.1.1

[root@FriendlyARM /]# ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1): 56 data bytes


and nothing else.


Now I did what you said like this :


I run the command ping 192.168.1.1

result:

[root@FriendlyARM /]# ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1): 56 data bytes



and nothing else than I stop it by ctrl+C


and than I ran the command route -n 

result:

piyush@piyush-desktop:~$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
116.74.40.0     0.0.0.0         255.255.248.0   U     1      0        0
eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0
eth0
0.0.0.0         116.74.40.1     0.0.0.0         UG    0      0        0
eth0


similarly when I got the pinging in my mini from ping 116.74.41.85

I ran the command route -n on my mini board than I got this:

result:

[root@FriendlyARM /]# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
116.74.40.0     0.0.0.0         255.255.248.0   U     0      0        0
eth0
0.0.0.0         116.74.40.1     0.0.0.0         UG    0      0        0
eth0
[root@FriendlyARM /]# 




Also the result of only route on my PC is this :

result:

piyush@piyush-desktop:~$ route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
116.74.40.0     *               255.255.248.0   U     1      0        0
eth0
link-local      *               255.255.0.0     U     1000   0        0
eth0
default         116.74.40.1     0.0.0.0         UG    0      0        0
eth0
piyush@piyush-desktop:~$ 





Now tuxerito what is the problem I have described all the steps which I
have tried to connect the internet successfully to my mini2440 and I think
with your help I am able to ping the ip address successfully but not
getting connection still.


So now what I should do to correct it.


Thank you