[plug] Misconfiguration on server tcp/routing

[Lucas van Staden]

Hello.

I have found an odd problem on my webserver box (use purely to just host 
my own two personal websites)

I cannot seem to ping certain addresses, but browsing them from links, 
works fine.
Some work fine.
For the life of me I cannot find what is wrong.
Other machines on this network works fine.
I am sure it is something obvious, but I just can't see it.

web at webserver:~$ ping www.google.com
PING www.l.google.com (66.102.11.104) 56(84) bytes of data.
 From 192.168.0.6 icmp_seq=1 Destination Port Unreachable

(takes about 1-2 minutes for that response, and for each thereafter)

Network setup:

auto eth1
iface eth1 inet static
    address 192.168.0.6
    netmask 255.255.255.0
    gateway 192.168.0.1
    network 192.168.0.0
    broadcast 192.168.0.255

web at webserver:~$ sudo route -n
[sudo] password for web:
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use 
Iface
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 eth1
0.0.0.0         192.168.0.1     0.0.0.0         UG    100    0        0 eth1

web at webserver:~$ sudo ifconfig
eth1      Link encap:Ethernet  HWaddr 00:13:8f:a3:cd:e1 
          inet addr:192.168.0.6  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::213:8fff:fea3:cde1/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:13720 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18280 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:4039608 (4.0 MB)  TX bytes:16416771 (16.4 MB)
          Interrupt:20 Base address:0xd800

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:434 errors:0 dropped:0 overruns:0 frame:0
          TX packets:434 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:65165 (65.1 KB)  TX bytes:65165 (65.1 KB)

web at webserver:~$ traceroute www.google.com
traceroute to www.google.com (66.102.11.104), 30 hops max, 40 byte packets
 1   (192.168.0.6)  0.090 ms  0.038 ms  0.034 ms

Does not go any further

I new d-link modem/router has been put in use, and I am unsure if this 
issue existed before then.

Routing on the router:

# route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use 
Iface
203.59.14.16    203.59.48.28    255.255.255.255 UGH   0      0        0 ppp0
203.59.14.16    0.0.0.0         255.255.255.255 UH    0      0        0 ppp0
203.59.48.28    127.0.0.1       255.255.255.255 UGH   0      0        0 lo
192.168.0.0     192.168.0.1     255.255.255.0   UG    0      0        0 br0
192.168.0.0     0.0.0.0         255.255.255.0   U     0      0        0 br0
239.0.0.0       0.0.0.0         255.0.0.0       U     1      0        0 br0
0.0.0.0         203.59.14.16    0.0.0.0         UG    0      0        0 ppp0


What could be wrong?

-- 
Regards
Lucas van Staden

http://www.proxiblue.com.au/ (Consumer Electronics Retail Shop)
http://www.vanstaden.com.au/ (Linux)