I have RVS4000 configured to listen to multiple IP on WAN side.For this to work my config is like this:
WAN holds the "routing" segment 184.108.40.206/31 of my public IP subnet
WAN IP static: 220.127.116.11
WAN gateway: 18.104.22.168
Lan holds the first IP of my public IP subnet 22.214.171.124/28
LAN IP static: 126.96.36.199
LAN subnet: 255.255.255.240
Everything else under LAN settings is empty.
Here I have:
Operation Mode: ROUTER
RIP Send Packet Version: RIPv2
RIP Rcvd Packet Version: RIPv2
So, practically I have LAN side configured with public IP and no NAT between WAN and LAN side.
PROBLEM here is "single Port Forwarding", for example:
1.) I have 2 mail servers behing RVS4000, so I want to open port 25 on 2 IP addresses...but I can't! Cisco says, that 2 rules of port forwarding are the same and does not accept one of them. Any idea?
2.) Some single port forwarding rules simply do not work?! Straight forwarding a port xx to xx works, but from port xx to YY does not...or it does, until I add another rule. Meaning, that if at some moment all port forwardings work, they may NOT work after I add another rule.
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