Linux networking

• LinuxNet - a good place where to begin
• Linux Advanced Routing & Traffic Control
• ADSL Bandwidth Management HOWTO
• etables project - ethernet firewalling
• http://www.mastershaper.org/
• ttshaper - Tom's traffic shaper
• The Guide to IP Layer Network Administration with Linux
• HFSC Scheduling with Linux
• IPv6 Linux howto
• Debian IPv6

• Howto to use more than one independent Internet connection
• Linux load balancing

order hosts,bind
multi on
nospoof on
spoofalert on
spoof  warn
reorder on

Description of upper configuration!

more at: http://linux-net.osdl.org/index.php/Bridge, Performance Evaluation of Linux bridge

 # brctl addbr "bridgename"
 # brctl addif bridgename device

See MAC table

 # brctl showmacs

Interface must be UP

 # ifconfig <bridgename> up
 # vconfig add <bridgename> [vlanid]

configuration above should work with applying this (bridge.diff) patch to your linux kernel. Otherwise you need to do this like this

# ifconfig ethX up
# ifconfig ethY up
# vconfig add ethX [vlanid]
# vconfig add ethY [vlanid]
# brctl addbr "bridgename"
# brctl addif <bridgename> ethX.vlanID
# brctl addif <bridgename> ethY.vlanID

There are many ways to create VLAN's on Linux. By far the most cumbersome is by various rc.* scripts that later must be maintained. A “8201q” module must be loaded, ethernet interface must be brought up in order to create particular VLAN using “vconfig”. Lastly, an “ifconfig” must be used to fill in IP address, possibly even “route” command to create some default route.

RedHat Fedora (and possibly other RedHad distro) have automatic setup possible via scripts in /etc/sysconfig/network-scripts directory.

Creating file in that directory with the name eg. “ifcfg-eth1.222” will eventually be file for the VLAN with the tag 222.

Content of the file /etc/sysconfig/network-scripts/ifcfg-eth1.222 may be something like this:

DEVICE=eth1.222

BOOTPROTO=static
BROADCAST=1.2.3.255
HWADDR=00:11:22:33:44:55
IPADDR=1.2.3.4
NETMASK=255.255.255.0
NETWORK=1.2.3.0
ONBOOT=yes
TYPE=Ethernet
VLAN=yes

This file will do it all regarding VLAN creation during boot process. No rc.* scripts necessary, and the VLAN setting is completely in line with the Fedora specifications.

<zekozeko>

plugin rp_pppoe.so nic-novoime
pise nekje v /usr/share/doc/pppd/
na koncu enga fajla, mislim da README.Debian
sicer pa uporabljam ifrename, ne nameif
ifrename ce mas hotplug v kernelu avtomatsko dela ne da bi rabu kaj poganjat
samo v /etc/iftab vpises kar hoces

/etc/network/interfaces

auto vlan667
iface vlan667 inet static
  address 10.10.40.4
  netmask 255.255.255.0
  vlan_raw_device eth1