Lan to Lan Routing

tsyselsky

tsyselsky

route.gif


I want to configure the routing of the subnet LAN1 and back.
From LAN1 to LAN2 everything is OK.
From Lan2 ip from LAN1 not visible.
NAT I did not 'up'. I can not understand what the problem. Thanks for your help

HTML: 
[b]uname -a[/b]
FreeBSD ### 8.1-RELEASE FreeBSD 8.1-RELEASE #0: Thu Aug 12 18:12:56 EEST 2010     ##@###:/usr/src/sys/amd64/compile/###  amd64

[b]$ netstat -nr[/b]
Routing tables

Internet:
Destination        Gateway            Flags    Refs      Use  Netif Expire
default            10.0.10.1        UGS         0      944   bge1
10.0.10.0/24       link#1             U           2     6967   bge0
10.0.10.227        link#1             UHS         0        0    lo0
10.0.20.0/24       link#2             U          16   129101   bge1
10.0.20.227        link#2             UHS         0        0    lo0
127.0.0.1          link#5             UH          0       48    lo0

[b]$ cat /etc/rc.conf[/b]

#--------------------
defaultrouter="10.0.10.1"
gateway_enable="YES"
#pf_enable="YES"
hostname="cerberus"

#--- ifconfig -------
ifconfig_bge0="inet 10.0.10.227  netmask 255.255.255.0"
ifconfig_bge1="inet 10.0.20.227  netmask 255.255.255.0"

#--------------------
keymap="ua.koi8-u"
nfs_client_enable="YES"
sshd_enable="YES"



# -- disable INET6 -------------
#options        INET6                   # IPv6 communications protocols

# -- add ALTQ support  ----
options         ALTQ
options         ALTQ_CBQ
options         ALTQ_RED
options         ALTQ_RIO
options         ALTQ_HFSC
options         ALTQ_PRIQ
options         ALTQ_NOPCC

# -- add it/12.08.2010 -----------------
options         HZ=1000
options         DEVICE_POLLING

# -- PF Support ---------
device          pf
device          pflog
device          pfsync
device          if_bridge
 
You don't need NAT.

Assuming 10.0.20.0/24 is LAN2, make sure the clients on that subnet use 10.0.20.227 as their default gateway. Similarly, hosts on the LAN1 subnet need to use 10.0.10.227 as their gateway.
 
sorry scheme is not correct.
In LAN2 default gateway 10.0.10.1 (WAN)
I added a route on 'WAN Router'
[cmd=]#route add-net 10.0.20.0/24 10.0.10.227[/cmd]
but the IP packets in X.20(LAN1) does not come

route2.gif
 
BoxA: the box which has contact with both LAN1 and LAN2
BoxB: the box on LAN2 which has access to the internet

LAN1's default gateway needs to be BoxA.
BoxA will need to have BoxB as default gateway.
BoxB needs to have a routing entry telling that the IP range of LAN1 is to be routed via BoxA.

You also need to set up BoxA as a router, so that it knows to route traffic between interfaces.

You should preferably set up a DHCP server on LAN2 (BoxB?) which pushes these routing tables to the clients, to avoid sending all the traffic (including traffic headed for LAN1) via BoxB.
 
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