I am a noob so I need help. I got a destination unreachable when I ping to WinXP from Linux using a WUSB54Gv4 wireless network adapter on both PCs. I already have the driver for this on both OS. WinXP is working fine with other network. What is the problem on my Linux? tjt

What is the output of "ifconfig" and "iwconfig"? Are you able to see anything with "iwlist wlan0 scan"? Are you using DHCP or static IPs?

ifconfig output: Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:33439 errors:0 dropped:0 overruns:0 frame:0 TX packets:33439 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2197619 (2.0 Mb) TX bytes:2197619 (2.0 Mb) rausb0 Link encap:Ethernet HWaddr 00:12:17:8F:8B:30 inet addr:172.16.68.210 Bcast:172.16.68.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:100 RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) iwconfig output: lo no wireless extensions. Warning: Driver for device rausb0 recommend version 16 of Wireless Extension, but has been compiled with version 15, therefore some driver features may not be available... rausb0 RT2500USB WLAN ESSID:"CPDNetworkFW" Mode:Managed Frequency=2.412 GHz Bit Rate=11 Mb/s RTS thr=0 B Fragment thr=0 B Encryption key:off Link Quality=0/70 Signal level:-120 dBm Noise level:-195 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 ping output: PING 172.16.68.11 (172.16.68.11) 56(84) bytes of data. From 172.16.68.210 icmp_seq=1 Destination Host Unreachable From 172.16.68.210 icmp_seq=2 Destination Host Unreachable From 172.16.68.210 icmp_seq=3 Destination Host Unreachable From 172.16.68.210 icmp_seq=4 Destination Host Unreachable From 172.16.68.210 icmp_seq=5 Destination Host Unreachable From 172.16.68.210 icmp_seq=6 Destination Host Unreachable From 172.16.68.210 icmp_seq=7 Destination Host Unreachable From 172.16.68.210 icmp_seq=8 Destination Host Unreachable From 172.16.68.210 icmp_seq=9 Destination Host Unreachable --- 172.16.68.11 ping statistics --- 10 packets transmitted, 0 received, +9 errors, 100% packet loss, time 9055ms , pipe 4 iwlist output: Warning: Driver for device rausb0 recommend version 16 of Wireless Extension, but has been compiled with version 15, therefore some driver features may not be available... rausb0 No scan results Note: the Link LED did not light. Can I ask for your YM or MSN or AIM so we could chat regarding this? That is if it's ok with you... I used the rt25701.1.0 Beta 1 from http://rt2x00.serialmonkey.com/wiki/index.php/Main_Page tjt

Are you trying to connect through an access point or directly from one PC to the other? If the latter you have to put your wireless adapter into ad-hoc mode if you want to connect peer-to-peer. # iwconfig rausb0 mode Ad-Hoc

Is some sort of gateway setting (i.e 172.16.168.1) on both machines needed ? I know I get this error message if one of our gateways/routers is down.

The results above are trying to connect to an access point. I also tried from PC to PC. I can't change the mode to ad-hoc. after I did iwconfig rausb0 mode ad-hoc, the mode still remained as managed. When I ping and at the same time did ifconfig, ifconfig showed no transmit packets. tjt