Linux Kernel Nat Support

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Added support in the kernel for fullcone 3-tuple unique ...

    https://github.com/Azure/sonic-linux-kernel/pull/100
    Changes done in the kernel to ensure 3-tuple uniqueness of the conntrack entries for the fullcone nat functionality. Hashlist is maintained for the 3-tuple unique keys (Protocol/Source IP/Port) for all the conntrack entries. When NAT table rules are created with the fullcone option, the SNAT/POSTROUTING stage ensures the ports from the pool are picked up in such a way that the 3-tuple is ...

iptables - How to enable CONFIG_NETFILTER in Kernel ...

    https://unix.stackexchange.com/questions/316521/how-to-enable-config-netfilter-in-kernel
    I'm trying to install my own Firewall on ubuntu using iptables.In a tutorial it says, I need the iptables-Kernelmodule and the parameter CONFIG_NETFILTER=Y in Kernel Configuration. I didn't found a tutorial on web how to edit the Kernel Configuration.

Does the Linux kernel IPv6 NAT ? - Stack Overflow

    https://stackoverflow.com/questions/52566832/does-the-linux-kernel-ipv6-nat
    I know linux kernel was not supposed to support IPv6 NAT. No, this statement is wrong. Linux kernel is supposed to support IPv6 network address translation. Is there any Linux kernel which support Ipv6 NAT? Any linux kernel with version greater then 3.9.0 and iptables utility greater then 1.4.18 supports ipv6 NAT (from here). So there are ...

Enable IPTABLES support in Linux Kernel Server Buddies

    http://blog.serverbuddies.com/enable-iptables-support-in-linux-kernel/
    Select the following option (not as a loadable module) Networking >> Networking options >> Network packet filtering (replaces ipchains) >> Core Netfilter Configuration >> Netfilter Xtables support (required for ip_tables) and select the all following options as modules.

NAT with Linux and iptables - Tutorial (Introduction)

    https://www.karlrupp.net/en/computer/nat_tutorial
    First of all the structure of an IP-packet will be considered. After a short overview of the possibilities of the (Linux-)kernel I will jump right into the main area of application of NAT, namely the connection of a private subnet to the internet using a router (in our case a linux machine with iptables).

linux/net/netfilter at master · torvalds/linux · GitHub

    https://github.com/torvalds/linux/tree/master/net/netfilter
    Dec 22, 2019 · Linux kernel source tree. Contribute to torvalds/linux development by creating an account on GitHub.

IPVS - LVSKB

    http://kb.linuxvirtualserver.org/wiki/IPVS
    IP Load Balancing Technologies. Since the IP load balancing techniques have good scalability, IPVS extends the TCP/IP stack of the Linux kernel to support three IP load balancing techniques: LVS/NAT, LVS/TUN and LVS/DR.The box running IPVS acts as a load balancer of network connections from clients who know a single IP address for a service, and distributes them to a set of servers that ...



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