need help pls asap

[angelito munez]

hi guys..
ok.. this is actually the problem.. the isp give us a public ip.. then it was assigned to the ADSL router.. then at the router, DCHP is enabled... so this means that my freebsd box is inside a private network with ip 172.16.16.2.. router has the private ip 172.16.16.1.. the router itself is doing a NAT because it has a real ip of 62.215.85.228... now what i want to do is to make another private network with the freebsd as their gateway so that i can make some rules for this network.. and this should also act as their firewall.. now i have already configured the 2 network interfaces which is vr1 (172.16.16.2 -> for the router's network) and vr0 (192.168.0.1 -> for another private network)... now i can ping outside addresses such as yahoo via vr1.. i can also ping 172.16.16.1(my freebsd's gateway) and 192.168.0.1.. the problem is i have one host in my private network having an ip of 192.168.0.2 and i can't ping this host.. what is the problem? i dont have any firewall rules to 
 block
 any network.. i even add "ipfw 1 add allow ip from any to any"... iv been thinking that it is a route problem but i dont know how to set the proper route because my box is in between 2 private networks.. these are my route..
Routing tables
Internet:
Destination        Gateway            Flags    Refs      Use  Netif Expire
default            172.16.16.1        UGSc        1       90    vr1
127.0.0.1          127.0.0.1          UH          0       49    lo0
172.16.16/24       link#2             UC          2        0    vr1
172.16.16.1        00:0f:3d:87:9c:51  UHLW        1       12    vr1   1200
172.16.16.4        00:0b:db:95:89:a0  UHLW        1     1912    vr1   1081
192.168.0          link#1             UC          2        0    vr0
192.168.0.1        00:11:95:90:c6:b6  UHLW        0       18    lo0
192.168.0.2        00:11:5b:2b:24:20  UHLW        0        0    vr0   1188
can you help me with this problem?
thanks for giving your time in reading this.... ill be waiting for your response..


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