Date: Wed, 14 Feb 2007 11:16:52 -0500 From: "Andy Greenwood" <greenwood.andy@gmail.com> To: "FreeBSD Questions" <freebsd-questions@freebsd.org> Subject: weird routing problem Message-ID: <3ee9ca710702140816q260f3f6fp1c971e5ddc9b75eb@mail.gmail.com>
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My network looks like this:
+----------+ +------+ +---------+ +----------+
| Internet | <-> | Tiny | <-> | linksys | <-> | Behemoth |
+----------+ +------+ +---------+ +----------+
\
(WiFi)
\
+---------+
| various |
+---------+
Tiny is my firewall, and it forwards all ssh and http traffic to
Behemoth. I also forward port 3389 to one of the clients on the
wireless network. I can get into the remote desktop on my machine
running XP and ssh to behemoth from there, but can't from the outside.
Once I am logged into Behemoth, I can't ping anything on the outside.
If I try to ping my default gateway, 192.168.2.1, I get "Ping: Sendto:
Host is down" If I try to ping anything else, I get "Ping: Sendto: No
route to host"
[andy@behemoth ~]$ ifconfig
dc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
options=8<VLAN_MTU>
inet 192.168.2.10 netmask 0xffffff00 broadcast 192.168.2.255
ether 00:0c:41:e2:ae:75
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
plip0: flags=108810<POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT> mtu 1500
pflog0: flags=0<> mtu 33208
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
inet 127.0.0.1 netmask 0xff000000
[andy@behemoth ~]$ netstat -rn
Routing tables
Ineternet:
Destination Gateway Flags Refs Use Netif Expire
default 192.168.2.1 UGS 0 447 dc0
127.0.0.1 127.0.0.1 UH 0 604 lo0
192.168.2 link#1 UC 0 0 dc0
192.168.2.1 link#1 UHLW 2 2 dc0
192.168.2.10 00:0c:41:e2:ae:75 UHLW 1 10 lo0
168.168.2.100 00:12:17:6a:32:7e UHLW 1 2239 dc0 623
[andy@behemoth ~]$ ping google.com
ping: cannot resolve google.com: Host name lookup failure
[andy@behemoth ~]$ ping 64.233.167.99
PING 64.233.167.99 (64.233.167.99): 56 data bytes
ping: sendto: No route to host
ping: sendto: No route to host
^C
--- 64.233.167.99 ping statistics ---
2 packets transmitted, 0 packets recieved, 100% packet loss
The weird thing is that I'm logged into this box over ssh. I shouldn't
be able to connect to the box if there's something wrong with the
routing, correct?
I have already tried setting the mtu to 1400 with no result and
rebooting, also with no result, but I'm really not sure where to go
from here. Any help on this would be much appreciated. I've attached
my pf.conf, but it hasn't changed in a few weeks and this just started
happening a couple days ago. It coincided with me adding my new Wii to
the wireless network, but I can't see how that could've messed up the
routing on Behemoth.
--
--
I'm nerdy in the extreme and whiter than sour cream
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