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Question : Home network, Windows XP server with two network cards, Windows XP wireless client
Hello everybody.
I have a problem I have seen in various incarnations in the various replies on this site, but no solution fitted exhaustively. Here it is:
At my home I have a server currently running Windows XP Sp1, and a client laptop running the same OS.
The server has two network cards, one connected to the internet and one plugged into a wireless access point. The client has a DLink wireless USB adapter. At one point I was able to ping and to connect to the laptop from the server, but I must have done some changes that have compromised that little success. However, I was never able to connect to the Internet from the laptop at any point.
Currently, from the server I can see the Internet connected to one card but not the access point connected to the other card. I thought the problem was the cable, but I can connect the access point (3com OfficeConnect 3CRWE45A72) using the same cable through the laptop onboard ethernet card.
Can anyone help? I have printed some IPCONFIG and ROUTE PRINT from both the client and the server below.
I am not using any firewall software at this moment.
Bye for now,
Joe
Server:
C:\>ipconfig /all
Configurazione IP di Windows
Nome host . . . . . . . . . . . . . . : JOEHOMESERVER
Suffisso DNS primario . . . . . . . :
Tipo nodo . . . . . . . . . : Sconosciuto (Unknown)
Routing IP abilitato . . . . . . . . : Sì
Proxy WINS abilitato . . . . . . . . : No
Scheda Ethernet Scheda collegamento Fastweb:
Suffisso DNS specifico per connessione: fastwebnet.it
Descrizione . . . . . . . . . . . . . : Scheda Fast Ethernet PCI CNet PRO200WL #3
Indirizzo fisico. . . . . . . . . . . : 00-80-AD-71-9D-EE
DHCP abilitato. . . . . . . . . . . . : Sì
Configurazione automatica abilitata : Sì
Indirizzo IP. . . . . . . . . . . . . : 23.242.124.237
Subnet mask . . . . . . . . . . . . . : 255.255.248.0
Gateway predefinito . . . . . . . . . : 23.242.120.1
Server DHCP . . . . . . . . . . . . . : 23.242.124.236
Server DNS . . . . . . . . . . . . . : 213.156.54.80
213.156.54.81
Lease ottenuto. . . . . . . . . . . . : mercoledì 19 gennaio 2005 13.47.24
Scadenza lease . . . . . . . . . . . : mercoledì 19 gennaio 2005 14.47.24
Scheda Ethernet Connessione alla rete locale (LAN) 4:
Suffisso DNS specifico per connessione:
Descrizione . . . . . . . . . . . . . : Scheda Ethernet Macronix basata su MX98715 (generica) #2
Indirizzo fisico. . . . . . . . . . . : 00-80-AD-8C-E6-1C
DHCP abilitato. . . . . . . . . . . . : No
Indirizzo IP. . . . . . . . . . . . . : 192.168.0.1
Subnet mask . . . . . . . . . . . . . : 255.255.255.0
Gateway predefinito . . . . . . . . . :
C:\>route print
==========================
==========
==========
==========
==========
=========
Elenco interfacce
0x1 ..........................
. MS TCP Loopback interface
0x2 ...00 80 ad 71 9d ee ...... Scheda Fast Ethernet PCI CNet PRO200WL #3 - Miniport dell'Utilità di pianificazione pacc
hetti
0x3 ...00 80 ad 8c e6 1c ...... Scheda Ethernet Macronix basata su MX98715 (generica) #2 - Miniport dell'Utilità di pian
ificazione pacchetti
==========================
==========
==========
==========
==========
=========
==========================
==========
==========
==========
==========
=========
Route attive:
Indirizzo rete Mask Gateway Interfac. Metric
0.0.0.0 0.0.0.0 23.242.120.1 23.242.124.237 30
23.242.120.0 255.255.248.0 23.242.124.237 23.242.124.237 30
23.242.124.237 255.255.255.255 127.0.0.1 127.0.0.1 30
23.255.255.255 255.255.255.255 23.242.124.237 23.242.124.237 30
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.0.0 255.255.255.0 192.168.0.1 192.168.0.1 20
192.168.0.1 255.255.255.255 127.0.0.1 127.0.0.1 20
192.168.0.255 255.255.255.255 192.168.0.1 192.168.0.1 20
224.0.0.0 240.0.0.0 23.242.124.237 23.242.124.237 30
224.0.0.0 240.0.0.0 192.168.0.1 192.168.0.1 20
255.255.255.255 255.255.255.255 23.242.124.237 23.242.124.237 1
255.255.255.255 255.255.255.255 192.168.0.1 192.168.0.1 1
Gateway predefinito: 23.242.120.1
==========================
==========
==========
==========
==========
=========
Route permanenti: Nessuno
Client:
c:\jslomp>ipconfig /all
Configurazione IP di Windows
Nome host . . . . . . . . . . . . . . : joe-xplaptop-01
Suffisso DNS primario . . . . . . . :
Tipo nodo . . . . . . . . . . . . . . : Ibrido
Routing IP abilitato. . . . . . . . . : No
Proxy WINS abilitato . . . . . . . . : No
Scheda Ethernet {11C7B6CC-119A-49D9-AD7B-4
F5E1C62FA9
F}:
Suffisso DNS specifico per connessione:
Descrizione . . . . . . . . . . . . . : Nortel IPSECSHM Adapter - Eacfilt Miniport
Indirizzo fisico. . . . . . . . . . . : 44-45-53-54-42-00
DHCP abilitato. . . . . . . . . . . . : No
Indirizzo IP. . . . . . . . . . . . . : 0.0.0.0
Subnet mask . . . . . . . . . . . . . : 0.0.0.0
Gateway predefinito . . . . . . . . . :
Scheda Ethernet Connessione alla rete locale (LAN):
Stato supporto . . . . . . . . . . . : Supporto disconnesso
Descrizione . . . . . . . . . . . . . : Scheda Fast Ethernet VIA compatibile
Indirizzo fisico. . . . . . . . . . . : 00-40-D0-41-F5-15
Scheda Ethernet Connessione rete senza fili 3:
Suffisso DNS specifico per connessione:
Descrizione . . . . . . . . . . . . . : D-Link Air DWL-122 Wireless USB Adapter
Indirizzo fisico. . . . . . . . . . . : 00-0D-88-FA-1F-61
DHCP abilitato. . . . . . . . . . . . : No
Indirizzo IP. . . . . . . . . . . . . : 192.168.0.20
Subnet mask . . . . . . . . . . . . . : 255.255.255.0
Gateway predefinito . . . . . . . . . : 192.168.0.1
Server DNS . . . . . . . . . . . . . : 192.168.0.1
c:\jslomp>route print
==========================
==========
==========
==========
==========
=========
Elenco interfacce
0x1 ..........................
. MS TCP Loopback interface
0x2 ...44 45 53 54 42 00 ...... Nortel IPSECSHM Adapter - Eacfilt Miniport
0x10004 ...00 40 d0 41 f5 15 ...... Scheda Fast Ethernet VIA compatibile - Eacfilt Miniport
0x20005 ...00 0d 88 fa 1f 61 ...... D-Link Air DWL-122 Wireless USB Adapter - Eacfilt Miniport
==========================
==========
==========
==========
==========
=========
==========================
==========
==========
==========
==========
=========
Route attive:
Indirizzo rete Mask Gateway Interfac. Metric
0.0.0.0 0.0.0.0 192.168.0.1 192.168.0.20 1
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.0.0 255.255.255.0 192.168.0.20 192.168.0.20 30
192.168.0.20 255.255.255.255 127.0.0.1 127.0.0.1 30
192.168.0.255 255.255.255.255 192.168.0.20 192.168.0.20 30
224.0.0.0 240.0.0.0 192.168.0.20 192.168.0.20 30
255.255.255.255 255.255.255.255 192.168.0.20 192.168.0.20 1
255.255.255.255 255.255.255.255 192.168.0.20 10004 1
255.255.255.255 255.255.255.255 192.168.0.20 2 1
Gateway predefinito: 192.168.0.1
==========================
==========
==========
==========
==========
=========
Route permanenti:
Nessuno
Answer : Home network, Windows XP server with two network cards, Windows XP wireless client
>>unless they do some packet sniffing ...
No they can't get private IP - the private IP is translated via NAt to the externel IP PLUS portnumber - this portnumber is the means, how the router can point the incoming packets back to the originating IP... so don't worry, your router is the only one who knows about your inrenal IP structure
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