Gentoo Archives: gentoo-user

From: Alec Ten Harmsel <alec@××××××××××××××.com>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] [OT] Routing Problems
Date: Sat, 18 Oct 2014 15:39:01
In Reply to: Re: [gentoo-user] [OT] Routing Problems by Mick
1 On 10/18/2014 04:06 AM, Mick wrote:
2 > Can you give some additional information on the network topology?
3 >
4 > Are we talking about LAN/WAN? Same subnet? VLAN? DMZ?
6 It's a LAN. Just a simple TP-Link router setup to do DHCP. No VLAN, no
7 DMZ, only one subnet It's at my apartment, so nothing fancy.
9 >
10 > Any firewall rules or special routing/bridging/etc.?
12 Firewall is disabled on the server (CentOS) and my desktop. No special
13 routing or bridging.
15 >
16 > What do the router logs say?
18 DD-WRT is not very informative. It only has system-type stuff in
19 /var/log/messages, nothing LAN-related.
21 >
22 > Have you captured any packets on both ends and in between?
23 >
24 >
25 >
27 Capturing packets on my desktop shows strange behavior. When I ping my
28 server (kwopper), my desktop (greenbeast) starts generating a bunch of
29 ARPs, none of which get answered. When my laptop pings kwopper, the
30 first ARP is answered instantly and the pings succeed. Pinging from
31 kwopper is the same; instantly finds and connects to my laptop, but my
32 desktop does not see any ARPs or ICMPs from kwopper.
34 I can attach Wireshark dumps if helpful. tcpdump doesn't seem to want to
35 work on my server for some reason.
37 Alec


Subject Author
Re: [gentoo-user] [OT] Routing Problems Mick <michaelkintzios@×××××.com>
Re: [gentoo-user] [OT] Routing Problems wabenbau@×××××.com