Static IP cannot Ping gateway

[devashish]

My ISP uses a LAN, and a 24 Online client, apparently I can use Linc to login to the server to access the internet, but I am not able to ping the gateway. Any help will be appreciated.
Heres the info, b.t.w I have Knoppix HD-install


knoppix@Knoppix:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:0D:87:11:82:5F
inet addr:10.1.77.141 Bcast:10.1.77.141 Mask:255.255.255.240
inet6 addr: fe80::20d:87ff:fe11:825f/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1492 Metric:1
RX packets:724 errors:0 dropped:0 overruns:0 frame:0
TX packets:11 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:57117 (55.7 KiB) TX bytes:2134 (2.0 KiB)
Interrupt:21

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:10 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:772 (772.0 b) TX bytes:772 (772.0 b)

knoppix@Knoppix:~$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
10.1.77.128 0.0.0.0 255.255.255.240 U 0 0 0 eth0


knoppix@Knoppix:~$ netcardconfig
ifconfig eth0 10.1.77.141 netmask 255.255.255.240 broadcast 10.1.77.128 up
route add default gw 10.1.77.1
SIOCADDRT: Network is unreachable
auto lo eth0
Setting Nameserver in /etc/resolv.conf to 192.168.222.5
Done.

Following is on the same pc running windows xp with a working internet connection
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\devashish>ipconfig -all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Home-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8139 Family PCI Fast Ethe
rnet NIC
Physical Address. . . . . . . . . : 00-0D-87-11-82-5F
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.1.77.141
Subnet Mask . . . . . . . . . . . : 255.255.255.240
Default Gateway . . . . . . . . . : 10.1.77.1
DNS Servers . . . . . . . . . . . : 192.168.222.5

[ChessGuru]

I don't know the kind of setup you have with your ISP...are you using a Broadband router...Or is it a straight connection through a switch to the default gw....anyway let me see if I can help you..

I think there is a problem with the broadcast address it's same with the IP address

inet addr:10.1.77.141 Bcast:10.1.77.141 Mask:255.255.255.240

For that subnet mask the Broadcast address should be 10.1.77.143....If you know subnetting.....and the default Gw should be any IP Btw 10.1.77.129-10.1.77.142......

But according to the settings I see for windows....I assume the submask is either 255.255.255.128 0r 255.255.255.0 since you are able to reach the default gw.

You can try the above settings by changing the in /etc/networking/interfaces.....if all else fails put the exact settings like the ones in windows using a text editor and restart networking /etc/init.d/networking force-reload....

i hope it works.

ChessGuru

[devashish]

Thank you chessguru .The actual broadcast address is 10.1.77.255, i figured that by using wireshark, let me show you my windows routing table, maybe that will help!
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\devashish>route PRINT
================================================== =========================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 0d 87 11 82 5f ...... Realtek RTL8139 Family PCI Fast Ethernet NIC - P
acket Scheduler Miniport
================================================== =========================
================================================== =========================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 10.1.77.1 10.1.77.141 20
10.1.77.128 255.255.255.240 10.1.77.141 10.1.77.141 20
10.1.77.141 255.255.255.255 127.0.0.1 127.0.0.1 20
10.255.255.255 255.255.255.255 10.1.77.141 10.1.77.141 20
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
224.0.0.0 240.0.0.0 10.1.77.141 10.1.77.141 20
255.255.255.255 255.255.255.255 10.1.77.141 10.1.77.141 1
Default Gateway: 10.1.77.1
================================================== =========================
Persistent Routes:
None

C:\Documents and Settings\devashish>