Need Help with Networking

[empera]

hehe well its been a while and my memory is bad, i hafta trouble shoot this though...

ok so im trying to set up my networking with the following set up...
Laptop with wireless card address is 192.168.1.101
PC #1 with NIC card 192.168.1.100
PC #2 with NIC card 192.168.1.102
all going into wiresless/ethernet router thats going into my cable modem. 192.168.1.1


I can access and ping between the laptop and PC #2 but i cant access nor ping this PC #1 ( all have access to internet ), i cant even ping myself. i checked the settings and all seem right but there might be something im missing?

if you can help please let me know, i'd be easier on AIM or something.

 

[lagged]

1. what type of router are you using
2. are you using DHCP

linksys routers by default use 192.168.1.100-(whatever the limit is) for DHCP clients.

if your DHCP IP pool is in that range and you manually set a host to use that IP youll have conflict.

use ifconfig to check each hosts actual IP address.

EDIT: replace ifconfig with ipconfig if youre using windows. (sorry, stuck in the UNIX world)

 

[empera]

i havent touched the DHCP settings and im using the Linksys router, WRT54G, i did ipconfig on all computers and those ips i listed are the actual ips...i cant ping this computer at all though.

 

[lagged]

basically, if all the computer use DHCP and can all get out to the internet then there are only a few things that could be the cause of this. you said they can all get out, are you sure? double check by pinging the default gateway.

a. you are doing something wrong (such as mistyping the IP address)
b. pinging is disabled

what are you actually trying to do?

 

[empera]

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\Julio>ipconfig

Windows IP Configuration


Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
IP Address. . . . . . . . . . . . : 192.168.1.100
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.1

C:\Documents and Settings\Julio>

 

[empera]

C:\Documents and Settings\Julio>ping 192.168.1.100

Pinging 192.168.1.100 with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.1.100:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Documents and Settings\Julio>


What im trying to do is...be able to share files/printer with all computers, this is the main computer and i cant access it through others or cant ping itself.

 

[lagged]

can you ping the default gateway?

if not, check your physical connections.

 

[empera]

C:\Documents and Settings\Julio>ping 192.168.1.100

Pinging 192.168.1.100 with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.1.100:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Documents and Settings\Julio>


Yes i can. this is wierd..never had a problem like this.

 

[lagged]

C:\Documents and Settings\Julio>ping 192.168.1.100

Pinging 192.168.1.100 with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.1.100:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Documents and Settings\Julio>


Yes i can. this is wierd..never had a problem like this.

post the output of:

ping 192.168.1.1

ping 127.0.0.1

if you cant pint 192.168.1.1 id be very inclined to say that youre not plugged in.

 

[empera]

Pinging 192.168.1.1 with 32 bytes of data:

Reply from 192.168.1.1: bytes=32 time<1ms TTL=64
Reply from 192.168.1.1: bytes=32 time<1ms TTL=64
Reply from 192.168.1.1: bytes=32 time<1ms TTL=64
Reply from 192.168.1.1: bytes=32 time<1ms TTL=64

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

C:\Documents and Settings\Julio>ping 127.0.0.1

Pinging 127.0.0.1 with 32 bytes of data:

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128
Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Ping statistics for 127.0.0.1:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 0ms, Average = 0ms

C:\Documents and Settings\Julio>

 

[lagged]

ping all other hosts on the network, then do
arp -a

and post the results of that.

 

[empera]

Laptop
Pinging 192.168.1.101 with 32 bytes of data:

Reply from 192.168.1.101: bytes=32 time=19ms TTL=128
Reply from 192.168.1.101: bytes=32 time=1ms TTL=128
Reply from 192.168.1.101: bytes=32 time=23ms TTL=128
Reply from 192.168.1.101: bytes=32 time=1ms TTL=128

Ping statistics for 192.168.1.101:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 23ms, Average = 11ms

C:\Documents and Settings\Julio>

 

[empera]

PC#1 (this computer)
Pinging 192.168.1.100 with 32 bytes of data:

Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 192.168.1.100:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

C:\Documents and Settings\Julio>

 

[empera]

PC #2 is off...

C:\Documents and Settings\Julio>arp -a

Interface: 192.168.1.100 --- 0x2
Internet Address Physical Address Type
192.168.1.1 00-0f-66-51-4b-53 dynamic
192.168.1.101 00-11-50-1c-4a-9d dynamic

C:\Documents and Settings\Julio>

 

[lagged]

well that all seems right... ill have to think about this for a moment.

while im doing that reboot your computer and see what happens.

 

[empera]

tried that a few times...and havent changed anything since reboot.

 

[lagged]

tried that a few times...and havent changed anything since reboot.

use the windows utility and renew your ip address.

if that dosnt work, manually assign its IP address, netmask, default gateway, and DNS servers and then see what happens.

 

[empera]

lol found the anwer...u might call me an idiot for this.

 

[lagged]

what was it. it usually always is something simple, especially when all the diagnostics check out.

 

[empera]

3rd party firewall...norton anti-virus has a "internet worm protection" crap so i looked at the gen. rules and ICMP and a couple of other things were blocked.

Thanks a lot for the help, you actually refreshed my memory with a bunch of stuff...