![]() I have this 4Mb/4Mb full duplex line delivered to my gateway but even with my proven working QoS I can only get 4Mb max. In which scenario is this needed? And can it be dynamic or static in respect of security issues the manual mentions? In this case I have to build tunnels or something to all clients to get them one and the same network IP. Arrange that all clients come at the gateway with a local IP all in one /24 network so netmap translation becomes straitghtforward. netmap several networks to same size networks? (like local/26 get public/26 and that several times until I run out of addresses? Yet again, all addresses also to be set as IP on the public interface? ![]() scr-nat each local IP to public IP? Do I need to set this public IP in public interface of my router? (ip/address) I red all the manuals and some post but still have some items in need of clarifications: ![]() What is now the best scenario and where to look at. Now I have obtained a /24 address range (254 addresses) that I can use to give clients fixed public IP's. Up to now all these addresses where scr-natt'd to one IP assigned to me by ISP. Presently I have clients coming in at my LAN port with about 14 different networks. Why the new one will be, I am struggling with same sort of setup: If the issue is caused by something else, the above will not help (unless the provider's gear cannot handle two connections from the same address and port on your side even if they connect to different remote address and port, which sounds quite unlikely). netmap is one of the ways to make sure that the same client on the private side will always be NATed to the same public IP another possibility is to use individual src-nat rules, one per public IP, with per-connection-classifier computing the hash from the source address alone. So if the issue is caused by many of your clients accessing the same port on the same remote server using TCP, using a range instead of a single address for NAT may help, but for that, it is enough to specify a range for src-nat. The resulting tracked connections will look the same, however, no matter whether their NAT treatment has been activated by src-nat or netmap. ip firewall nat add chain=srcnat action=netmap out-interface=ether1 to-addresses=192.168.143.32/28 ip firewall nat add chain=srcnat action=src-nat out-interface=ether1 to-addresses=192.168.143.32/28Īction=netmap, if used in chain=srcnat, replaces the prefix of the source address of the connection with the one specified in to-addresses, the rest of the bits remain unchanged. I think its because of SRCNAT Rule.Īction=src-nat replaces the source address of the connection being handled with an address from the to-addresses range or subnet (both variants are possible). Kindly Help with NETMAP, sometimes my traffic gets congested so our ISP ask me to check the NAT Entries, but as we are having CCR-1036 so didnt found any issue because always found 70k entries maximum. Facing problem still if some user try to connect VPN then that public IP routed to that VPN server and all the clients on that IP gets routed to that VPN destination. Due to lack of Public IPs I have to assign /24 private pool with 1 static public IP. I have about 400 users now and all of them on PPPOE, to achieve the goal I created multiple PPPOE Servers on multiple PPPOE Interfaces which are connected to different remote networks. Someone suggested me to use NETMAP instead of SRCNAT, but I am not understanding the basic difference between them except this that SRCNAT is used for specific Ports and NETMAP can be used for all ports.Ĭan you guys suggest me the more precise way, as I am having problem in creating multiple pools. I am facing a little problem that packets was dropping, Internet occasionally stops responding for a second or two and then starts for sometime. ![]() Now in Firewall NAT, i created a rule where I SRC-NAT the /24 Private IP Pool with 1 single Public IP already added to the WAN Interface. I had assigned the /30 IP to the WAN Interface and /28 IPs are simply added to the IP Address List. I am having 2 public IP pools, one is /30 and the other is /28 routed over that /30. ![]()
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