06-07-2013
Delete all ebtables rules
Hi All,
I configured a bridged debian firewall using bridging utilities.
This works fine & I have been monitoring all users connecting to the internet & bandwidth usage.
There are 2 interfaces eth0 & eth1 which i have configured as bridged interface br0.
Today, I installed squid on the machine & used both IPTABLES & EBTABLES to transparently forward port 80 to port 3128.
This part is working OK. I now want a script that will quickly revert me back to my bridged linux firewall by removing all IPTABLE & EBTABLE rules..i.e remove the forwarding of port 80 to SQUID 3128
Thanks
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LEARN ABOUT DEBIAN
br2684ctl
br2684ctl(8) System Manager's Manual br2684ctl(8)
NAME
br2684ctl - RFC1483/2684 Bridge Daemon
SYNOPSIS
br2684ctl [ -b ] [[ -c n ] [ -e 0|1 ] [ -p 0|1 ] [ -s sndbuf ] [ -a [itf].vpi.vci ]] ...
PARAMETERS
-a [itf].vpi.vci
ATM PVC number, VPI and VCI. (Required)
-b Puts the process in the background.
-c n br2684 interface number such as 0, 1, ... (Required)
-e 0|1 Encapsulation method: 0=LLC, 1=VC mux (the default is 0 or LLC)
-p 0|1 Payload method: 0=Routed, 1=Bridged (the default is 1 or Bridged)
-s sndbuf Send buffer size. Default is 8192.
DESCRIPTION
br2684ctl handles RFC1483/2684 bridged PDUs. This is most often used in ADSL scenarios where usually the subscribers' ethernet traffic is
encapsulated in ATM AAL5 (by bridging ADSL modems) according to RFC2684. The subscriber-side ADSL modem can be external with an ethernet
connector or an internal ADSL card in a PC. RFC1483 has been obsoleted by RFC2684.
For example it is possible to set up your Linux box to handle several ATM PVC's with bridged-1483 (sometimes referred as SNAP) encapsula-
tion. The Linux network stack might provide DHCP, IP masquerading, IP firewall services or bridge the Ethernet frames just like it had
several ethernet interfaces. In fact it can have several (logical) ethernet interfaces, where ATM is just used as a carrier.
USAGE
br2684ctl creates a new network interface named nas[n] which is bound to an specific ATM PVC. It requires two mandatory arguments: -c, the
interface number, and -a, the ATM PVC. It should be noted that the order of the command arguments matter; -c should be followed by -a. You
can create as many interfaces as necessary in one go, just make a long command line ;)
For example, following command will create a nas0 interface which uses the ATM PVC with VPI=0 and VCI=401. You need to configure the PVC
connection 0.401 on the ATM switch manually.
% br2684ctl -c 0 -a 0.401
The command will only create a new interface nas0. Next step is to assign an IP address and netmask to the interface nas0 using the ifcon-
fig command. Using ifconfig, you can also assign a Ethernet MAC address to the interface nas0, if necessary.
% ifconfig nas0 192.168.2.1 netmask 255.255.255.0
Messages are logged to the LOCAL2 syslog facility.
FILES
/var/run/br2684ctl-<iface>.pid
NOTES
This man page is based on a tutorial by by Joonbum Byun <jbyun@megaxess.com>
SEE ALSO
qos(7)
7 Jul 2003 br2684ctl(8)