Behind a router

Sat Feb 2 21:49:56 PST 2008

I 
had 
a 
working 
minimal 
FreeBSD 
system 
until 
I 
put 
it 
behind 
a 
wireless
router. 
Since 
then, 
my 
network 
is 
not 
accessible 
anymore 
when 
I 
boot 
BSD.
On 
the 
same 
desktop 
I 
have 
a 
Gentoo 
Linux 
system 
which 
works 
just 
fine,
even 
if 
I 
didn't 
touch 
any 
of 
it's 
configuration 
files 
after 
I 
installed
the 
router.

The 
router 
is 
a 
ZyXEL 
P-335U 
connected 
to 
a 
cable 
modem. 
The 
desktop 
is
plugged 
into 
a 
LAN 
port. 
A 
laptop 
connected 
by 
wireless 
has 
no 
problems.
The 
router 
gets 
it's 
IP 
from 
the 
ISP 
and 
acts 
as 
a 
firewall 
and 
a 
DHCP
server 
to 
my 
network: 
it 
serves 
a 
pool 
of 
32 
addresses 
starting 
at
192.168.1.33. 
Its 
own 
address 
is 
192.168.1.1. 
The 
IP 
Subnet 
Mask 
is
255.255.255.0.

The 
configuration 
files 
for 
FreeBSD 
are 
shown 
below.
The 
output 
of 
ifconfig 
and 
netstat 
are 
also 
shown 
for 
BSD 
and 
Linux.

What 
I 
don't 
understand 
is 
the 
fact 
that 
having 
the 
same 
router 
settings,
Linux 
works 
while 
BSD 
doesn't: 
I 
can't 
even 
ping 
192.168.1.1, 
while 
the
same 
ping 
in 
Linux 
works.

I 
read 
the 
handbook 
and 
various 
other 
BSD 
information 
sources 
on 
the 
web
and 
I 
could 
not 
solve 
this 
issue.

My 
question 
is: 
which 
config 
files 
do 
I 
have 
to 
edit 
in 
FreeBSD 
and 
what
settings 
should 
I 
use 
? 
Can 
anybody 
help 
?

Thanks,
eu

/etc/rc.conf
---------------------------------------------------------------------------
ifconfig_dc0="DHCP"
hostname="localhost"
---------------------------------------------------------------------------

/etc/dhclient.conf
---------------------------------------------------------------------------
interface 
"dc0" 
{
send 
host-name 
"localhost";
request 
subnet-mask, 
broadcast-address, 
routers, 
domain-name-servers,

domain-name, 
time-servers;
require 
domain-name-servers;
}
---------------------------------------------------------------------------

ifconfig 
dc0 
(BSD)
---------------------------------------------------------------------------
dc0: 
flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> 
metric 
0 
mtu 
1500

options=8<VLAN_MTU>

ether 
00:14:cf:52:b4:17

inet 
192.168.1.33 
netmask 
0xffffff00 
broadcast 
192.168.1.255

media: 
Ethernet 
autoselect 
(100baseTX 
<full-duplex>)

status: 
active
---------------------------------------------------------------------------

ifconfig 
eth0 
(Linux)
---------------------------------------------------------------------------
eth0  

Link 
encap:Ethernet  
HWaddr 
00:14:CF:52:B4:17  

inet 
addr:192.168.1.33  
Bcast:192.168.1.255  
Mask:255.255.255.0

inet6 
addr: 
fe80::214:cfff:fe52:b417/64 
Scope:Link

UP 
BROADCAST 
RUNNING 
MULTICAST  
MTU:1500  
Metric:1
---------------------------------------------------------------------------

netstat 
-rn 
(BSD)
---------------------------------------------------------------------------
Routing 
tables

Internet:
Destination  

Gateway  

Flags  

Refs  

Use  
Netif 
Expire
default  

192.168.1.1  

UGS  

0  

4  

dc0
127.0.0.1  

127.0.0.1  

UH  

0  

0  

lo0
192.168.1.0/24  

link#1  

UC  

0  

0  

dc0
192.168.1.1  

link#1  

UHLW  

2  

4  

dc0
---------------------------------------------------------------------------

netstat 
-rn 
(Linux)
---------------------------------------------------------------------------
Kernel 
IP 
routing 
table
Destination  

Gateway  

Genmask  

Flags  

MSS 
Window  
irtt 
Iface
192.168.1.0  

0.0.0.0  

255.255.255.0  

U  

0 
0  

0 
eth0
127.0.0.0  

0.0.0.0  

255.0.0.0  

U  

0 
0  

0 
lo
0.0.0.0  

192.168.1.1  

0.0.0.0  

UG  

0 
0  

0 
eth0
---------------------------------------------------------------------------

The 
content 
of 
/var/db/dhclient.leases.dc0 
(BSD) 
is:
---------------------------------------------------------------------------
lease 
{

interface 
"dc0";

fixed-address 
192.168.1.33;

server-name 
"ZYXEL_P_335U";

option 
subnet-mask 
255.255.255.0;

option 
routers 
192.168.1.1;

option 
domain-name-servers 
64.59.176.13,64.59.176.15;

option 
domain-name 
"wp.shawcable.net";

option 
dhcp-lease-time 
259200;

option 
dhcp-message-type 
5;

option 
dhcp-server-identifier 
192.168.1.1;

option 
dhcp-renewal-time 
129600;

option 
dhcp-rebinding-time 
226800;

renew 
1 
2008/2/4 
16:13:41;

rebind 
2 
2008/2/5 
19:13:41;

expire 
3 
2008/2/6 
04:13:41;
}
---------------------------------------------------------------------------

The 
content 
of 
/var/lib/dhcpcd/dhcpcd-eth0.info 
(Linux) 
is:
---------------------------------------------------------------------------
IPADDR='192.168.1.33'
NETMASK='255.255.255.0'
BROADCAST='192.168.1.255'
ROUTES=''
GATEWAYS='192.168.1.1'
HOSTNAME='dhcppc1'
DNSDOMAIN='wp.shawcable.net'
DNSSERVERS='64.59.176.13 
64.59.176.15'
DHCPSID='192.168.1.1'
DHCPSNAME='ZYXEL_P_335U'
LEASEDFROM='1202012861'
LEASETIME='259200'
RENEWALTIME='129600'
REBINDTIME='226800'
INTERFACE='eth0'
CLASSID='dhcpcd 
3.1.5'
CLIENTID='ff:00:00:00:03:00:01:00:01:0e:90:86:a3:00:14:cf:52:b4:17'
DHCPCHADDR='00:14:cf:52:b4:17'

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