Setting up a FC3 gateway

[Thiago Guzella]

> Are you directly connecting the Windows XP box to the Linux host, or do
> you have a switch or a hub in between them?  If direct, are you certain
> that you are cabled correctly?  I would think you'd want a crossover
> cable instead of a regular cable.

this is a direct connection, using a crossover cable... i'm not that stupid ;)

> 
> What are the results of the following commands on the Linux host:
> 
> route -n

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
200.217.50.131  0.0.0.0         255.255.255.255 UH    0      0        0 ppp0
192.168.1.0     0.0.0.0         255.255.255.0   U     0      0        0 eth0
169.254.0.0     0.0.0.0         255.255.0.0     U     0      0        0 eth1
0.0.0.0         200.217.50.131  0.0.0.0         UG    0      0        0 ppp0

> ifconfig eth0

eth0      Link encap:Ethernet  HWaddr 
          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: 
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:7279 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6733 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:493697 (482.1 KiB)  TX bytes:612523 (598.1 KiB)
          Interrupt:185 Base address:0x6000

> service iptables status

Table: nat
Chain PREROUTING (policy ACCEPT)
target     prot opt source               destination

Chain POSTROUTING (policy ACCEPT)
target     prot opt source               destination
MASQUERADE  all  --  0.0.0.0/0            0.0.0.0/0

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Table: filter
Chain INPUT (policy ACCEPT)
target     prot opt source               destination
RH-Firewall-1-INPUT  all  --  0.0.0.0/0            0.0.0.0/0

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
RH-Firewall-1-INPUT  all  --  0.0.0.0/0            0.0.0.0/0

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Chain RH-Firewall-1-INPUT (2 references)
target     prot opt source               destination
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0
ACCEPT     icmp --  0.0.0.0/0            0.0.0.0/0           icmp type 255
ACCEPT     esp  --  0.0.0.0/0            0.0.0.0/0
ACCEPT     ah   --  0.0.0.0/0            0.0.0.0/0
ACCEPT     all  --  0.0.0.0/0            0.0.0.0/0           state
RELATED,ESTABLISHED
REJECT     all  --  0.0.0.0/0            0.0.0.0/0          
reject-with icmp-host-prohibited

> ping -c 4 192.168.1.2

PING 192.168.1.2 (192.168.1.2) 56(84) bytes of data.

--- 192.168.1.2 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 2999ms

> arp -a

? (192.168.1.2) at [ether] on eth0

> 
> And what are the results of these commands on the XP box:
> 

Partially translated windows xp output:

> route print

===========================================================================

Interface list

0x1 ........................... MS TCP Loopback interface

0x2 ...00 e0 18 a3 b8 87 ...... ASUSTeK/Broadcom 440x 10/100 Integrated Controll

er

===========================================================================


===========================================================================

Active routes:

Net address          Mask       Gateway Address       Interface   Cost

          0.0.0.0          0.0.0.0      192.168.1.1     192.168.1.2       20

        127.0.0.0        255.0.0.0        127.0.0.1       127.0.0.1       1

      192.168.1.0    255.255.255.0      192.168.1.2     192.168.1.2       20

      192.168.1.2  255.255.255.255        127.0.0.1       127.0.0.1       20

    192.168.1.255  255.255.255.255      192.168.1.2     192.168.1.2       20

        224.0.0.0        240.0.0.0      192.168.1.2     192.168.1.2       20

  255.255.255.255  255.255.255.255      192.168.1.2     192.168.1.2       1

Default gateway:        192.168.1.1

===========================================================================

Persistent routes:

  None

> ipconfig

Local ethernet adaptor:



        Connection Specific DNS suffix  . :

        IP Address . . . . . . . . . . . . : 192.168.1.2

        Net mask    . . . . . . . . : 255.255.255.0

        Default gateway. . . . . . . . . . . : 192.168.1.1



> ping -n 4 192.168.1.1

Answer from 192.168.1.1: bytes=32 time<1ms TTL=64

Answer from 192.168.1.1: bytes=32 time<1ms TTL=64

Answer from 192.168.1.1: bytes=32 time<1ms TTL=64

Answer from 192.168.1.1: bytes=32 time<1ms TTL=64


> arp -a

Interface: 192.168.1.2 --- 0x2

  IP Address           Physical Address       Type
  192.168.1.1           00-61-e3-10-cf-54     dynamic



PS: hardware addresses removed...

-- 
Thiago dos Santos Guzella
Electrical Enginnering Student - UFMG (www.ufmg.br), Brazil 
Linux User #354160
UIN: 13465286. Jabber: tguzella @ jabber.org

"Faith: not wanting to know what is true." 
Friedrich Nietzsche