Dual Network adapters

[emblem]

I have a laptop running XP Pro with an internal ethernet adapter, a wireless EVDO sprint PCMCIA card, and a PCMCIA ethernet adapter. When using the PCMCIA ethernet card, the wireless card is absent and vice versa.

I am trying to get the PC to run LAN over the internal (when network copper is available), and use the PCMCIA ethernet adapter ('e-net2' for short) to direct connect to other equipment for file tranfsers. The 'other' equipment runs OS-9, it has only a single enet port at 10 meg speed. When all is set up, I am able to ping the PC from the OS-9 equip thru e-net2 connection using a crossover cable. However, the PC can't ping the OS-9 hardware. I can ping each IP for each network adapter in the PC using command prompt, but also get wierd results:

Pinging nnn.nnn.20.44 with 32 bytes of data:

Reply from nnn.nnn.20.44: Request timed out.

Reply from nnn.nnn.20.44: Request timed out.

Reply from nnn.nnn.20.44: Request timed out.

Reply from nnn.nnn.20.44: Request timed out.

Ping statistics for nnn.20.20.44:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 0ms, Average = 0ms

U:\>ping nnn.nnn.20.40

Pinging nnn.nnn.20.40 with 32 bytes of data:

Reply from nnn.nnn.20.40: Request timed out.

Reply from nnn.nnn.20.40: Request timed out.

Reply from nnn.nnn.20.40: Request timed out.

Reply from nnn.nnn.20.40: Request timed out.

Ping statistics for nnn.nnn.20.40:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 0ms, Maximum = 0ms, Average = 0ms

IP has been changed here, but it is all the same where the 'nnn.nnn' are.

My OS-9 based gives this when pinging the PC:

$ ping nnn.nnn.20.44

PING nnn.nnn.44 (nnn.nnn.20.44): 56 data bytes

64 bytes from nnn.nnn.20.44: ttl=128 time=8 ms

In Network Connection in XP, a right click gives the option to brigde connections.

Here come the questions:

1. Is bridging the network connections what I need to do?

2. Can I specify an adapter to use when pinging other hardware?

3. Is there additional software windows needs to work with 2 seperate adapters?

4. Can apps be pointed in which adapter to use?

[allen2]

You have to use two different subnets!!!

Example:

1) if your ip is 10.0.0.15 and you use a 255.255.255.0 subnet you'll see all ips from 10.0.0.1 to 10.0.0.255(reserved for broadcasting all subnet ip).

2) if your ip is 10.0.0.15 and use a 255.255.255.252 subnet you'll see all ips from 10.0.0.12 to 10.0.0.15.

So you should use two subnets each one for one network card and for each network card use a different ip as a subnet must not contains ips from another subnet if you want to access all ips on both subnet and for each subnet your ip must be in this specific subnet.