On Tue, 2005-03-29 at 14:21 -0800, Stephen Hemminger wrote: > On Tue, 29 Mar 2005 16:43:11 -0500 > "Sandeep Khanna" <sandeep.khanna@xxxxxxxxxxxxx> wrote: > > > Hi All, > > > > After hours of reading and trials, I got the following setup working... > > > > 1. Dell Axim X30 PocketPC with 802.11b wireless using DHCP with Open WEP > > > > -- successfully connected to --> > > > > 2. Laptop with DLink Airplus DWL-650+ PCMCIA wireless with ndiswrapper > > v1.1 driver with network bridge (wired + wireless) and running a DHCP > > server listening on interface br0 (eth0 + wlan0) > > > > Here is the situation: > > - The Dell Axim X30 PDA shows connected to the laptop in Ad-Hoc wireless > > mode. > > - It successfully gets an MAC address based IP address from the DHCP > > server running on the laptop. > > - I can successfully ping the PDA (10.3.2.209) from the > > laptop(10.3.2.175). > > - I can successfully ping the laptop(10.3.2.175) from the > > PDA(10.3.2.209). > > - When I open a browser on the PDA and try to open www.dell.com, tcpdump > > shows the following: > > > > 16:26:09.XXXXXX arp who-has 10.47.12.29 tell 10.3.2.209 > > 16:26:10.XXXXXX arp who-has 10.47.12.27 tell 10.3.2.209 > > > > The above shows: > > time | protocol | who-has | Nameserver | tell | source IP address (PDA) > > > > - Internet browsing using the above Nameservers(10.47.12.29, > > 10.47.12.27) works on the laptop but apparently the PDA doesn't seem to > > even know about the Nameservers(10.47.12.29, 10.47.12.27)!! > > > > Going forward, if the above the setup works then, I would be able to > > browse Internet, use ActiveSync and more on my PDA not only in office > > (laptop eth0 active) but also at home (laptop wlan0 active). > > > Since you only really want to handle one device and a limited range of protocols > you probably would have better success with routing and/or socks. The problem > is that most wireless interfaces don't allow source address spoofing. Not that I am fully aware of what "soruce address spoofing" is and how is plays a role in what I would like to get done... But, according to what I have so far, it looks like I have it more or less working, accept that the PDA doesn't seem to be able to resolve desired destination hostnames (www.dell.com, www.microsoft.com, etc) Would having a local DNS server on the laptop help? What is /proc/sys/net/ipv4/conf/br0/proxy_arp ? Does that have anything to do with this? Also, Once I reach home and there is no more connectivity (IP address) on the eth0 (wired connection), would the bridge (eth0 + wlan0) still work? I just tried ifupping br0 but, it just tries to use the eth0 for DHCP and not wlan0. Essentially I have eth0 (wired) up when in office and wlan0 (wireless) when at home. But, I would just like to use the bridge both places (office + home) if the above setup works which would let me use my PDA seamlessly at both locations! -Sandeep Khanna
