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bridge network and ip assigned

Posted on 2008-10-15
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Last Modified: 2013-11-09
scenario:
1 notebook with wireless card connected to dlink router wireless
1 pc pdc connected to notebook by switch using ethernet lan in another room.
i' don't want to buy another wireless card for pdc so can i using bridging between lan and wireless connection but the ip of notebook become 165.xx.xx.xx
so notebook doesn't see domain pdc (10.xxx.xxx.xxx class).
so must i change the address of notebook and domain to make lan works?
can i use internet connection sharing? why in this case xp says " address will change to 192.xx.xxx..xxx
this mean also in this case i cannot use my originale 10.xx.xx.xx class?
ABSURD!
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Question by:tsubasa74j
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Expert Comment

by:giltjr
ID: 22727705
Bridging is done at layer 2 (Ethernet).  Routing is done at layer 3  IP.

Why do you have two IP subnets?  What I would suggest is that you either configure your wireless router to assign DHCP addresses in the 10.x.x.x subnet you have, or just reconfigure it to use 10.x.x.x instead of 192.168.1.0/24.

If you want to keep both subnets, then you need to setup something as a router and get it with IP addresses on both IP subnets.

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Author Comment

by:tsubasa74j
ID: 22730317
i've three items notebook on class 10.xxx - pdc on class. 10.xxxx - router on class 10.xxxx
as you knoe security level consider more affidable class of this type that not a class c.
i don't want to explain why, i only want to use my notebook wireless connection to share it with my pc in ethernet lan.
is there a simple mode to do it? or must i change class ip anywhere?
thanks
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Expert Comment

by:giltjr
ID: 22730485
Security has nothing to do with what class you have.  In fact class is really out the door.  The security deals with using non-public IP addresses.  Both the 10.0.0.0/8 and 192.168.0.0/16 ranges are non-public IP address and would be considered secure, as neither of them can be routed over the public Internet.

If both the 10.x.x.x and 192.168.x.x subnets are within your home and your network, then I would suggest that you change one of them so that you have a single IP subnet.  If you don't then you need either to have something act as a router that can route between the two IP subnets, or you need to be able to have either the server or you laptop have two IP addresses, one in each subnet.

Think of it this way, say you only speak Spanish (10.x.x.x subnet) and I only talk French (192.168.x.x).  Either one of us must learn to speak the other language or we need to get a translator (router).  There is no magic that would allow each of us to continue to speak our own languages and understand each other.
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Author Comment

by:tsubasa74j
ID: 23037076
ok thnak for explanation so i have 2 identical network segments 10.0.xxxx.xxxx and now?
 - my notebook is wireles connected to the router
 - my pc is ethernet-lan connected to the notebook
 - i've no money to buy wireless card for my pc (windows 2000 server)
router isfar from my pc and notebook room, how can i use notebook wireless-dsl connection or is there  a mode to give dsl to my pc in lan?
thanks for all
Domenico
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giltjr earned 500 total points
ID: 23053482
What are you calling "segments?"  If you have a Wireless Access point with wired switch ports also, these will be treated as a single segment, and they should both be on the same IP subnet.  The the wireless device you have is called a wireless router, then you might be getting a bit confused.

On a wireless router there are typically 4 wired ports that are part of the wireless network and then a 5 ports that is labeled WAN.  The WAN port is not part of the wireless and the 4 wired ports segment.  The wireless router will route between the WAN port and all of the other ports and the wireless network.  The WAN port is a unique segment and should be its own IP subnet.
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