Masanobu SAITOH <msai...@execsw.org> writes: > Is the port connecting 100BaseT switch or gigabit switch.
It's connected to a Cisco 2924 VLAN switch, and both the switch port and the wm0 device on the laptop are explicitly configured for 100/full. > Are you using dhcpcd? Have you tried with static IPv4 address? Yes, and yes. When I manually configure it for an address on the VLAN that's actually on that port, and try to ping a neighbor, I can see this (using tcpdump on the neighbor): 13:24:21.596308 ARP, Request who-has hamartun-gw.hamartun.priv.no tell 172.27.202.50, length 46 13:24:21.596326 ARP, Reply hamartun-gw.hamartun.priv.no is-at 00:13:72:f7:00:06 (oui Unknown), length 28 However, the ARP response is never received, so it just keeps trying. > And, could you try "ping6 ff02::1%wm0" and check if any reply > comes from other machine? dejah# ping6 ff02::1%wm0 PING6(56=40+8+8 bytes) fe80::226:b9ff:fecd:21c2%wm0 --> ff02::1%wm0 16 bytes from fe80::226:b9ff:fecd:21c2%wm0, icmp_seq=0 hlim=64 time=0.037 ms 16 bytes from fe80::226:b9ff:fecd:21c2%wm0, icmp_seq=1 hlim=64 time=0.017 ms 16 bytes from fe80::226:b9ff:fecd:21c2%wm0, icmp_seq=2 hlim=64 time=0.017 ms 16 bytes from fe80::226:b9ff:fecd:21c2%wm0, icmp_seq=3 hlim=64 time=0.017 ms 16 bytes from fe80::226:b9ff:fecd:21c2%wm0, icmp_seq=4 hlim=64 time=0.017 ms 16 bytes from fe80::226:b9ff:fecd:21c2%wm0, icmp_seq=5 hlim=64 time=0.016 ms ^C --- ff02::1%wm0 ping6 statistics --- 6 packets transmitted, 6 packets received, 0.0% packet loss round-trip min/avg/max/std-dev = 0.016/0.020/0.037/0.008 ms That's just the host itself answering, right? If I do this on the (working) iwn0 WiFi interface, I get more responses, with much longer RTTs, and "(DUP!)" messages. I assume that's neighbours answering? -tih -- Elections cannot be allowed to change anything. --Dr. Wolfgang Schäuble