No arp replies

Hello,

I have problems with the network connectivity with tho computers:

iwconfig looks okay to me:

Server bla:

wlan0     IEEE 802.11-DS  ESSID:"Cumulus"  Nickname:"bla"
          Mode:Ad-Hoc  Frequency:2.437 GHz  Cell: 02:0E:AA:8B:FE:A2
          Bit Rate:11 Mb/s   Tx-Power=15 dBm
          Retry limit:8   RTS thr=1536 B   Fragment thr=1536 B
          Encryption key: xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xx  Security mode:restricted
          Power Management:off
          Link Quality=0/0  Signal level=112/255  Noise level=0/0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

Server blubb:

wlan0     IEEE 802.11b  ESSID:"Cumulus"  Nickname:"blubb"
          Mode:Ad-Hoc  Frequency:2.437 GHz  Cell: 02:0E:AA:8B:FE:A2
          Bit Rate:2 Mb/s   Sensitivity=1/3
          Retry min limit:8   RTS thr:off   Fragment thr:off
          Encryption key:xxxx-xxxx-xxxx-xxxx-xxxx-xxxx-xx   Security mode:restricted
          Power Management:off
          Link Quality=51/70  Signal level=-41 dBm  Noise level=-92 dBm
          Rx invalid nwid:0  Rx invalid crypt:43  Rx invalid frag:0
          Tx excessive retries:455  Invalid misc:124   Missed beacon:0

Server bla:
ifconfig, too:

wlan0     Link encap:Ethernet  HWaddr 00:05:5D:99:BB:EE
          inet addr:192.168.200.1  Bcast:192.168.200.255  Mask:255.255.255.0
          inet6 addr: fe80::205:5dff:fe99:bbee/64 Scope:Link
          UP BROADCAST  MTU:1500  Metric:1
          RX packets:23 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1472 (1.4 Kb)  TX bytes:0 (0.0 b)

Server blubb:
wlan0     Link encap:Ethernet  HWaddr 00:0E:A6:7E:FE:A2
          inet addr:192.168.200.2  Bcast:192.168.200.255  Mask:255.255.255.0
          inet6 addr: fe80::20e:a6ff:fe7e:fea2/10 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B)  TX bytes:1800 (1.7 KiB)
          Interrupt:35

The problem is, the servers can't ping each other:
Using tcpdump on the interfaces I see on both sides arp requests:

21:06:52.322566 arp who-has bla-wlan tell blubb-wlan
21:06:53.322229 arp who-has bla-wlan tell blubb-wlan
21:06:54.321914 arp who-has bla-wlan tell blubb-wlan

But there are no arp replies. Routing can't be an issue, the servers are in the same net.

Any help would be appreciated!

Thanks,
Robert
-- 
Robert Frank [email protected]  http://www.golem.muc.de
PGP fingerprint: 1F A3 41 2A 90 57 A5 57  90 FE A1 6F 4A 77 91 31
The golden rule: Whoever has the gold, makes the rules.