From e9f3aaf6bdc64dd648005986fd2e60335695e51d Mon Sep 17 00:00:00 2001 From: sven-ola Date: Fri, 15 Oct 2010 09:09:26 +0000 Subject: rename --unbalance -> --csum git-svn-id: https://map66.svn.sourceforge.net/svnroot/map66@41 3484d885-4da6-438d-b19d-107d078dd756 --- README.html | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'README.html') diff --git a/README.html b/README.html index 75d1e91..337f6ca 100644 --- a/README.html +++ b/README.html @@ -1,6 +1,6 @@ -MAP66 (NAT from IPv6 to IPv6, NAT66) for Linux

MAP66 (NAT from IPv6 to IPv6, NAT66) for Linux

Sven-Ola Tuecke

Freifunk

13-OCT-2010

Table of Contents

Installation
DKMS Integration
Configuration
Brief Version
Detailed Version
IPv6/IPv4 Precedence
Change gai.conf
Use 6to4 Internal Address
Motivation

These files implement a Linux netfilter target that changes the IPv6 +MAP66 (NAT from IPv6 to IPv6, NAT66) for Linux

MAP66 (NAT from IPv6 to IPv6, NAT66) for Linux

Sven-Ola Tuecke

Freifunk

13-OCT-2010

Table of Contents

Installation
DKMS Integration
Configuration
Brief Version
Detailed Version
IPv6/IPv4 Precedence
Change gai.conf
Use 6to4 Internal Address
Motivation

These files implement a Linux netfilter target that changes the IPv6 address of packets. The address change is done checksum neutral, thus no checksum re-calculation for the packet is necessary. You can change the IPv6 source address of outgoing packets as well as the IPv6 destination address @@ -135,7 +135,7 @@ ip6tables -t mangle -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp- you cannot uncomment a single entry to overwrite the default. You need to uncomment all entries of a particular type for this. The “label” lines compare source addresses, the - “precedence” lines compare destination addresses.

Procedure 1. Change IPv6 Precedence

  1. Open the /etc/gai.conf file as root user, + “precedence” lines compare destination addresses.

    Procedure 1. Change IPv6 Precedence

    1. Open the /etc/gai.conf file as root user, e.g. by executing sudo nano /etc/gai.conf.

    2. Remove the leading hash character from the 8 lines starting with “#label”.

    3. Re-add the hash character to the line stating “#label @@ -152,8 +152,8 @@ ip6tables -t mangle -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp- interested in a solution that runs on my Freifunk router. The router uses the IPv4 192.168.65.65/26 on it's LAN interface. WIthin the OLSR-based mesh network, any interface uses an fdca:ffee:babe::/64 - prefix. The following internal mapping is configured for this: 

      ip6tables -t mangle -I PREROUTING -i br0 -s 2002:c0a8:4141::/64 -j MAP66 --src-to fdca:ffee:babe::/64 --unbalanced
-ip6tables -t mangle -I POSTROUTING -o br0 -d fdca:ffee:babe::/64 -j MAP66 --dst-to 2002:c0a8:4141::/64 --unbalanced

Motivation

My Internet access at home is realized by a wireless community mesh + prefix. The following internal mapping is configured for this: 

ip6tables -t mangle -I PREROUTING -i br0 -s 2002:c0a8:4141::/64 -j MAP66 --src-to fdca:ffee:babe::/64 --csum
+ip6tables -t mangle -I POSTROUTING -o br0 -d fdca:ffee:babe::/64 -j MAP66 --dst-to 2002:c0a8:4141::/64 --csum

Motivation

My Internet access at home is realized by a wireless community mesh network not owned by me. The mesh is operated with small embedded devices (nodes aka. WLAN routers) that are interconnected via radio links (WLAN IBSS / AdHoc). Routing is done with a specialized protocol such as Batman -- cgit v1.2.3