Hi all i have DSL 2MB connection with my provider he is authenticating and giving me 2MB Bandwidth i am using for my internal office purpose i have zyxel ADSL modem which is is Doing NAT since i have lot of corporate users, i want to manage the bandwidth, so i added another Redhat Linux box in between user and Zyxel ADSL router with 2 NIC the set up look like below Corporate users---NIC1--NIC2--ADSL LAN--ADLS WAN--UPLink/DownLink provider the problem is iam getting very poor response when i use iptables NAT to NAT configuration the configuration is like this Internal Users are using 192.168.2.5 to 192.168.2.200 subnet is 255.255.255.0 Internal user Gateway is (NIC1) 192.168.2.1 NIC2 IP address is 192.168.4.2 with the subnet if 255.255.255.0 ADSLLAN ip address is 192.168.4.1 with the Subnet if 255.255.255.0 NIC2 and ADSLLAN is connected with Cross cable ADSL WAN ip address is Dynamic This is what my present configuration of LAN but iam getting very poor responce of browsing, when iam doing any of the PC from corporate users when i remove the Linux box , iam getting good speed, but its sharing the bandwidth that, any one can pull 2MB, iam not able to monitor in the Redhat Linux 7.3 iam running Squid and Transparent proxy, with Iptables prerouting from 80 port to 3128 its able to serve the request but very slow responce, never gone yet to CBQ. I have another Setup in another Office Corporate users---NIC1--NIC2--Cisco LAN-- Cisco WAN--UPLink/DownLink provider here iam getting Cisco LAN is Public IP address, and My NIC2 also Public Address here my above setup working with any hassels can any suggest me what is wrong, any recomendation on the above setup where NAT to NAT giving problem thanks in advance hare
