2 Ip Addresses on the 1 NIC

[markh]

Hi there,

I was wondering if anyone could point out any implications to the network if
i set another IP address to a singular NIC.

I have a laptop running windows xp professional. The laptop travels between
two cities and each city has there own IP address configuration.

Sydney = 192.168.1.XXX
Melbourne = 192.168.0.XXX

I have configured the laptop to 192.168.1.XXX as it is majority of the time
in melbourne but would like to add the sydney IP address to the only NIC in
the laptop.

I cannot seem to find any information regarding the implications of doing
this.

The easiest way would be to buy a PCMCIA network card but i would like to
find out what problems i would have if i go this way.

Thanks in advance

Markh

 

[Malke]

Hi there,

I was wondering if anyone could point out any implications to the
network if i set another IP address to a singular NIC.

I have a laptop running windows xp professional. The laptop travels
between two cities and each city has there own IP address
configuration.

Sydney = 192.168.1.XXX
Melbourne = 192.168.0.XXX

I have configured the laptop to 192.168.1.XXX as it is majority of the
time in melbourne but would like to add the sydney IP address to the
only NIC in the laptop.

I cannot seem to find any information regarding the implications of
doing this.

The easiest way would be to buy a PCMCIA network card but i would like
to find out what problems i would have if i go this way.

Thanks in advance

Markh

If you go to the Local Area Network properties for your TCP/IP
configuration, you'll see a tab for Alternate Configuration. Put your
second IP address there. Then when the first configuration times out
looking for an IP address from a DHCP server, the second one will kick
in. If the waiting for the second configuration to take affect becomes
annoying (and it may not), then look into third-party network
management software like these (very inexpensive):

http://www.netswitcher.com - NetSwitcher
http://www.globesoft.com/mnm_home.html - MultiNetwork Manager
http://www.mobilenetswitch.com - Mobile Net Switch

Malke

 

[markh]

If you go to the Local Area Network properties for your TCP/IP
configuration, you'll see a tab for Alternate Configuration. Put your
second IP address there. Then when the first configuration times out
looking for an IP address from a DHCP server, the second one will kick
in. If the waiting for the second configuration to take affect becomes
annoying (and it may not), then look into third-party network
management software like these (very inexpensive):

http://www.netswitcher.com - NetSwitcher
http://www.globesoft.com/mnm_home.html - MultiNetwork Manager
http://www.mobilenetswitch.com - Mobile Net Switch

Malke
--
Elephant Boy Computers
www.elephantboycomputers.com
"Don't Panic!"
MS-MVP Windows - Shell/User

Thanks so much, i was worried it might of had severe implications with the
performance of the network.
It seems that it will do the job perfectly.

Thanks again
Markh

 

[Steve Winograd [MVP]]

Hi there,

I was wondering if anyone could point out any implications to the network if
i set another IP address to a singular NIC.

I have a laptop running windows xp professional. The laptop travels between
two cities and each city has there own IP address configuration.

Sydney = 192.168.1.XXX
Melbourne = 192.168.0.XXX

I have configured the laptop to 192.168.1.XXX as it is majority of the time
in melbourne but would like to add the sydney IP address to the only NIC in
the laptop.

I cannot seem to find any information regarding the implications of doing
this.

The easiest way would be to buy a PCMCIA network card but i would like to
find out what problems i would have if i go this way.

Thanks in advance

Markh

If one IP address is dynamic and the other one is static, you can use
the Alternate Configuration, as Malke suggested.

You can assign two static IP addresses to a single NIC. Assign the
first one as usual, then click Advanced, click Add under "IP
addresses", and assign the second one. If the second one requires a
default gateway, be sure to add it below.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

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