[TriLUG] OT LAN Segment issues

[Neil L. Little]

This is somewhat OT but it does involve servers that are all running 
some flavor of Linux.
I have certainly put myself in deep water on this one as this is my weak 
point. I appreciate any help I can get on this.

Our Lan is connected to DSL modem belonging to CTC. The gateway is 
assigned a static IP (166.82.aa.xx) provided by a DHCP server.
We have purchased a block of 6 IP addresses.
......Routed Block: 166.82.bb.x1
...........Usable IPs 166.82.bb.x2 through 166.82.bb.x7
......Broadcast IP: 166.82.bb.x8    
 
I am segmenting a small office LAN into 3 segments. The problem is I 
cant get segment 2 and 3 to see the internet and vise versa.
 
Segment 1 is the gateway (static IP 166.82.aa.xx)  to the DSL modem 
(Zhone 6211-I3 ADSL2+). It is a DHCP LAN (192.168.1.100 range of 50) 
containing all the office desktop computers. All these computers are 
sitting behind a 4 port Linksys router (BEFSX41). There is also a 16 
port workgroup switch (EZXS16W) connected to port 1 connected. I have 
turned on DMZ (port 4) and set the IP to 192.168.1.151.
 
Segment 2 is a 8 port Linksys router (BEFSR81) connected to the DMZ port 
(port 4, disables NAT/Firewall) of the Segment 1 router. It is a Static 
IP LAN and contains the servers. This is where the routed block of 8 IP 
addresses for this segment (6 IP + 1 router + 1 broadcast) is going.
 
Segment 3 is a 4 port Linksys vpn router (RV042) connected to one of the 
ports of the segment 2 router.
 
CTC, our provider. has indicated that they would like the routed block 
of IP addresses routed behind the gateway IP.
 
For Segment 2 router I have changed the settings under advanced routing 
to disable NAT and enabled Dynamic routing using rip1.
I have set the IP of the WAN gateway to 192.168.1.151 (connects to 
Segment 1 DMZ port 4 set to 192.168.1.151).
The IP of the LAN interface was set to the address CTC indicated was the 
router IP (166.82.bb.x1) for the Block of IPs.
The default gateway I set to the IP of the WAN interface for Segment 1 
(166.82.aa.xx)
 
I think I need a static IP pointing to the segment 2 router.....at least 
I think I do.
 
For segment 3 well, I have not even turned it on yet.