I have a simple three node wireless linux network as follows:
hostname IP notes
crs 192.168.0.101 laptop
cuda-host 192.168.0.100 desktop
192.168.0.103 wireless router ethernetted to WIFI modem
/etc/hosts on crs and cuda-host look like:
127.0.1.1 crs -or- cuda-host
From crs I can ping (and ssh) cuda-host but from cuda-host I can't ping (or ssh) crs. Instead I get:
craig@cuda-host:~$ ping crs
PING crs (192.168.0.101) 56(84) bytes of data.
From cuda-host (192.168.0.100) icmp_seq=1 Destination Host Unreachable
From cuda-host (192.168.0.100) icmp_seq=2 Destination Host Unreachable
From cuda-host (192.168.0.100) icmp_seq=3 Destination Host Unreachable
doing arp-scan from cuda-host I don't see crs. What I get is:
craig@cuda-host:~$ sudo arp-scan -I wlan0 -l
Interface: wlan0, datalink type: EN10MB (Ethernet)
Starting arp-scan 1.8.1 with 256 hosts (http://www.nta-monitor.com/tools/arp-scan/
192.168.0.1 1c:af:f7:cc:85:cb D-LINK INTERNATIONAL PTE LIMITED
192.168.0.103 50:63:13:c1:7d:f5 Hon Hai Precision Ind. Co.,Ltd.
2 packets received by filter, 0 packets dropped by kernel
Ending arp-scan 1.8.1: 256 hosts scanned in 1.781 seconds (143.74 hosts/sec). 2 responded
D-LINK is my wireless modem. I thought .103 was my wireless modem. have never heard of the company Hon Hai. Arp-scan looks similar on crs
Any idea what's going on here?