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Date:      Thu, 17 Jan 2008 15:23:11 +0100
From:      Laszlo Nagy <gandalf@shopzeus.com>
To:        freebsd-questions@freebsd.org
Subject:   routing question
Message-ID:  <478F64CF.7000603@shopzeus.com>

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  Hi,

I have this configuration:



Internet  -----> [Hw Router] ---- (LAN1: 192.168.2.0/24)  ----->  [ 
192.168.2.138 GatewayComp  192.168.0.1 ] ------ (LAN2: 192.168.0.0/24)

I would like to access a computer from LAN1 to LAN2.

LAN1 machine is:

FreeBSD office1adsl.dyndns.org 6.2-RELEASE FreeBSD 6.2-RELEASE #0: Fri 
Jan 12 10:40:27 UTC 2007     
root@dessler.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386
office1adsl# ifconfig
fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=8<VLAN_MTU>
        inet 192.168.2.114 netmask 0xffffff00 broadcast 192.168.2.255
        ether 00:50:8b:f7:30:24
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
plip0: flags=108810<POINTOPOINT,SIMPLEX,MULTICAST,NEEDSGIANT> mtu 1500
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
        inet6 ::1 prefixlen 128
        inet 127.0.0.1 netmask 0xff000000
office1adsl# netstat -nr
Routing tables

Internet:
Destination        Gateway            Flags    Refs      Use  Netif Expire
default            192.168.2.1        UGS         0  1262107   fxp0
127.0.0.1          127.0.0.1          UH          0   127122    lo0
192.168.0          192.168.2.138      UGS         0        4   fxp0
192.168.2          link#1             UC          0        0   fxp0
192.168.2.1        00:13:f7:26:42:69  UHLW        2      108   fxp0   1188
192.168.2.138      00:50:fc:8c:f6:62  UHLW        2     1469   fxp0    143
192.168.2.255      ff:ff:ff:ff:ff:ff  UHLWb       1    10044   fxp0

Internet6:
Destination                       Gateway                       
Flags      Netif Expire
::1                               ::1                           
UHL         lo0
fe80::%lo0/64                     fe80::1%lo0                   
U           lo0
fe80::1%lo0                       link#3                        
UHL         lo0
ff01:3::/32                       fe80::1%lo0                   
UC          lo0
ff02::%lo0/32                     fe80::1%lo0                   
UC          lo0
office1adsl# ipfw show
ipfw: getsockopt(IP_FW_GET): Protocol not available


GatewayComp machine is:

cassiopeia# uname -a
FreeBSD cassiopeia.ronet 6.2-RELEASE-p7 FreeBSD 6.2-RELEASE-p7 #5: Wed 
Aug 29 14:18:01 EDT 2007     
gandalf@cassiopeia.ronet:/usr/obj/usr/src/sys/CASSIOPEIA  i386
cassiopeia# ifconfig
myk0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=2b<RXCSUM,TXCSUM,VLAN_MTU,JUMBO_MTU>
        inet 192.168.0.1 netmask 0xffffff00 broadcast 192.168.0.255
        ether 00:17:31:c3:d2:fe
        media: Ethernet autoselect (1000baseTX <full-duplex>)
        status: active
rl0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        options=8<VLAN_MTU>
        inet 192.168.2.138 netmask 0xffffff00 broadcast 192.168.2.255
        ether 00:50:fc:8c:f6:62
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
        inet 127.0.0.1 netmask 0xff000000
cassiopeia# netstat -nr
Routing tables

Internet:
Destination        Gateway            Flags    Refs      Use  Netif Expire
default            192.168.2.1        UGS         0    16241    rl0
127.0.0.1          127.0.0.1          UH          0     4600    lo0
192.168.0          link#1             UC          0        0   myk0
192.168.0.121      00:02:a5:23:f3:d0  UHLW        1   153132   myk0    121
192.168.0.126      00:02:a5:e5:19:39  UHLW        1    94435   myk0    581
192.168.0.128      00:02:a5:c8:65:f8  UHLW        1   230797   myk0    130
192.168.0.130      00:02:a5:e0:e1:9c  UHLW        1   124633   myk0    306
192.168.0.131      00:02:a5:e0:c8:f4  UHLW        1   258495   myk0    165
192.168.0.132      00:02:a5:08:76:85  UHLW        1   161701   myk0    957
192.168.2          link#2             UC          0        0    rl0
192.168.2.1        00:13:f7:26:42:69  UHLW        2       30    rl0   1127
192.168.2.114      00:50:8b:f7:30:24  UHLW        2     1876    rl0     72
192.168.2.138      00:50:fc:8c:f6:62  UHLW        1       70    lo0
cassiopeia# grep gateway /etc/rc.conf
gateway_enable="YES"
cassiopeia# ipfw show
00001   29588   12691049 allow ip from any to any
00002       0          0 allow udp from any to any
00003       0          0 allow tcp from any to any
00100    9512     297448 allow ip from any to any via lo0
00200       0          0 deny ip from any to 127.0.0.0/8
00300       0          0 deny ip from 127.0.0.0/8 to any
65000 2172178 1136712828 allow ip from any to any
65535       1        330 deny ip from any to any
cassiopeia#


Now, here is what I try from LAN1 machine:

office1adsl# ping 192.168.0.132
PING 192.168.0.132 (192.168.0.132): 56 data bytes
^C
--- 192.168.0.132 ping statistics ---
4 packets transmitted, 0 packets received, 100% packet loss
office1adsl# telnet 192.168.0.132 5900
Trying 192.168.0.132...
^C


The same from the GatewayComp machine:

cassiopeia# ping 192.168.0.132
PING 192.168.0.132 (192.168.0.132): 56 data bytes
64 bytes from 192.168.0.132: icmp_seq=0 ttl=64 time=0.252 ms
64 bytes from 192.168.0.132: icmp_seq=1 ttl=64 time=0.259 ms
64 bytes from 192.168.0.132: icmp_seq=2 ttl=64 time=0.247 ms
^C
--- 192.168.0.132 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.247/0.253/0.259/0.005 ms
cassiopeia# telnet 192.168.0.132 5900
Trying 192.168.0.132...
Connected to 192.168.0.132.
Escape character is '^]'.
RFB 003.008
^C


^CConnection closed by foreign host.
cassiopeia#



Question: what is wrong with this confing? What should I change if I 
want to access LAN2 from LAN1?

Thanks,

   Laszlo




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