I own 2 Cisco RVS4000 routers. One is my gateway with a untangle UTM machine behind it. Untangle does not support vlan tags so I have a second RVS4000 router behind the untangle machine which I would like to setup vlans on. I have the second RVS4000 setup in router mode not gateway. I would prefer to not double nat. I have static routes between the 2 routers working. I have super scoped the first router so all my addresses and networks are within scope of the first RVS4000 router address and mask. I am trying to use the second RVS4000 as just a normal router with no firewall. My reason for all of this is I believe the first RVS4000 will not NAT traffic from the second RVS4000 LAN network because it is out of scope and I have no internet access from the second RVS4000 router. My IP addresses for the RVS4000 routers are as follows
WAN PPPOE DHCP
LAN IP 192.168.16.1 255.255.255.0
WAN Static IP 192.168.16.3 255.255.255.128
LAN IP 192.168.16.130 255.255.255.128
My problem now after all this is I cannot get DHCP on the second RVS4000 to assign addresses in the 255.255.255.128 scope. When I try to setup DHCP the second RVS4000 router just wipes out my static assigned address on the LAN side. It just blanks the IP address out and resets the mask to 255.255.255.0 . I have not got to the vlan part but I figure it will not work if this does not work. Do you see any errors in my configuration? I think maybe this is a bug in the router code. What do you think?