2 Networks. 1 Computer.

[aero9]

i have my computer on two networks, from two different ISPs.

one of them has the IP: 192.168.1.X

the other has IP: 192.168.2.X

the 192.168.1.X netowork is also wireless in my house and i want my computer (wired connection to router) to only be on this network so i can share files with the other computers. i do not want my computer to access the internet from this connection, i just want it for the file sharing, etc.

the other 192.168.2.X network i want as my primary network, i want all my internet traffic to go to this network and not the other 192.168.1.X network...

looking around windows xp settings i found no way i can "select" a network to use as default... is there a way i can be on both networks but use only one for internet?

EDIT: i forgot to mention i have 2 network cards on my computer and hence both networks work via LAN interfaces.

[DaveLegg Developer]

  aero9 said:

i have my computer on two networks, from two different ISPs.

one of them has the IP: 192.168.1.X

the other has IP: 192.168.2.X

the 192.168.1.X netowork is also wireless in my house and i want my computer (wired connection to router) to only be on this network so i can share files with the other computers. i do not want my computer to access the internet from this connection, i just want it for the file sharing, etc.

the other 192.168.2.X network i want as my primary network, i want all my internet traffic to go to this network and not the other 192.168.1.X network...

looking around windows xp settings i found no way i can "select" a network to use as default... is there a way i can be on both networks but use only one for internet?

EDIT: i forgot to mention i have 2 network cards on my computer and hence both networks work via LAN interfaces.

If you manually configure the ip address on the first network interface, and DO NOT set a gateway, it will have to use the gateway on the second network to access the internet.

[aero9]

i manually configure IP on both networks.

So just to make it clear, i just clear this out (circled in screenshot) and thats it?

the screenshot shows the tcp/ip settings for my 192.168.1.X network.

[DaveLegg Developer]

  aero9 said:

i manually configure IP on both networks.

So just to make it clear, i just clear this out (circled in screenshot) and thats it?

the screenshot shows the tcp/ip settings for my 192.168.1.X network.

Yeah, that's it.

The gateway is basically what your pc will use to access any IP address on a different subnet, if it doesn't have a gateway configured on that network, to access a different subnet, it is forced to use the other network where there is a gateway setup

[aero9]

awesome! thanks for your help :-)

[Echilon]

I would think you'll also need to use the ROUTE command.

  Quote

C:\Users\Echilon>route /?

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

[+BudMan MVC]

  Echilon said:

I would think you'll also need to use the ROUTE command.

No -- he does not need the route command if only one interface has a gateway.

he would need/want to use the route command if he had 2 or more interfaces with the same metric and wanted to use 1 interface over the other to go to a specific network outside of the ones he is directly connected to.