On 10/18/2014 04:06 AM, Mick wrote: > Can you give some additional information on the network topology? > > Are we talking about LAN/WAN? Same subnet? VLAN? DMZ?
It's a LAN. Just a simple TP-Link router setup to do DHCP. No VLAN, no DMZ, only one subnet 192.168.0.0/24. It's at my apartment, so nothing fancy. > > Any firewall rules or special routing/bridging/etc.? Firewall is disabled on the server (CentOS) and my desktop. No special routing or bridging. > > What do the router logs say? DD-WRT is not very informative. It only has system-type stuff in /var/log/messages, nothing LAN-related. > > Have you captured any packets on both ends and in between? > > > Capturing packets on my desktop shows strange behavior. When I ping my server (kwopper), my desktop (greenbeast) starts generating a bunch of ARPs, none of which get answered. When my laptop pings kwopper, the first ARP is answered instantly and the pings succeed. Pinging from kwopper is the same; instantly finds and connects to my laptop, but my desktop does not see any ARPs or ICMPs from kwopper. I can attach Wireshark dumps if helpful. tcpdump doesn't seem to want to work on my server for some reason. Alec
