similar to: Help configuring firewall

I am trying to build a firewall and from my reading of the list archives and other places, I''m worried about unintended interactions between iptables and iproute2. Here is my situation I have an internal network on eth0 and two separate dmzs on eth1 and eth2 respectively (a wireless network and a kiosk). On the outbound side, I have a cablemodem provider and a dsl provider. What I

Hello, LARTC mailing readers, I hope u can help with this mysterious issue i''m having with my linux box acting as a router. Scenario: Linux running 2.6.8.1 /w julians patches Latest iproute (iproute2-ss040702) 4 NICS ----------------- | x eth0 (63.43.x.x) network mask (255.255.240.0) | | x eth1 (63.43.x.x)

Hello, LARTC mailing readers, I hope u can help with this mysterious issue i''m having with my linux box acting as a router. Scenario: Linux running 2.6.8.1 /w julians patches /w support for multipath routing Latest iproute (iproute2-ss040702) 4 NICS ----------------- | x eth0 (63.43.x.x) network mask (255.255.240.0) | |

Hi, I have a little problem to setup iproute in my network It looks like this: ---- ----- ------ R1 R2 R3 ---- ----- ------ | | | | | | ------------------------------- ETH1 ETH2 ETH3 ETH0 ETH4 -------------> DMZ ------------------------------ | |

Hello! I have access server with 4 uplinks (nice, huh?). I ran RedHat 7.3. Yesterday I did an upgrade to RedHat 9. After upgrade Linux says the third link is bad: # ip route show 2.2.2.0/30 dev eth2 scope link src 2.2.2.2 4.4.4.0/30 dev eth4 scope link src 4.4.4.4 3.3.3.0/29 dev eth3 scope link src 3.3.3.3 1.1.1.0/28 dev eth1 scope link src 1.1.1.1 10.1.1.0/24 dev eth0 scope link

I think I understand what''s going on, thanks to a small mistake ;-) I needed to add a 5th nic to the gateway box - this new nic was an identical mate for another isa in there, so I modified the module options accordingly. So, after 10 minutes of trying to figure out why the DSL device was unwilling to talk to, well, anything - it occurred to me that the new card was the next address up,

I''am using the following script to aggregate the bandwidth of one quad gigabit ethernet controller (pci-express). #!/bin/bash sysctl -w net.ipv4.tcp_reordering = 30 ifconfig eth1 up ifconfig eth2 up ifconfig eth3 up ifconfig eth4 up modprobe sch_teql tc qdisc add dev eth1 root teql0 tc qdisc add dev eth2 root teql0 tc qdisc del dev eth3 root teql0 tc qdisc del dev eth4 root teql0 ip link

Hi all. I have a problem with pciback in OpenSUSE using PVM. I try to send 3 nic for the PVM.. its ok.. but.. if i try ifconfig eth3 up.. got the error... Please.. see this. Anybody.. know this problem? Thanks, Junior opensuse:~ # uptime 3:36pm up 0:03, 2 users, load average: 0.02, 0.06, 0.02 opensuse:~ # uname -a Linux opensuse 2.6.27.7-9-xen #1 SMP 2008-12-04 18:10:04 +0100 x86_64

Hi, This is the first time I write to the list. My english is not so good, but I hope I''ll be understood. I have 4 adsl routers, plugged on a linux box, and this box e used to connect to a local network. The linux box has 5 NICs. eth0: local network inet 10.0.0.56/24 brd 10.0.0.255 scope global eth0 eth1: adsl router 1 inet 192.168.254.1/24 brd 192.168.254.255 scope global

Hello all, I am new to Linux Ethernet bridging. Let me first start with what I am trying to achieve. Well you see - I am attempting to have 2 main firewall running at the same time - one as a master and the other one as a slave. Yes, I would like to make use of Ethernet bridging in this scenario - as I understand it, all I need are two machines and STP enabled. I am running Debian

Hi, I have been a shorewall user for a long time now, and it has been working flawlessly. I have now changed ISP and my new DSL connection is PPPoE. My setup is as follows: internet <--------> 3com812 Officeconnect (bridge mode) <----> eth0 <-------> linux box <----> eth1, eth2, eth3, eth4 <---> other internal networks Things are working fine, but the link is

Hello, I''m new to Xen (and this mailing-list) and facing some problems with the network. I''m stuck and don''t know how to continue. And Google isn''t very helpful either... My setup: - Ubuntu 7.10 for dom0 and Debian 4.0 for all domU - 4 physical NIC (DHCP from my ISP, internal LAN, DMZ & WLAN) - 1 Dom as firewall/router - 1 domU with internal services

Hi There, I have a bit of an odd issue. I am testing Xen 3.0.2 on a machine before fully migrating to it from 2.0.7. The host OS is Ubuntu 6.06, and I am running the pre-compiled Xen code (kernel, tools) from the Xen site. I have two NICs, both if which I amhidung from Dom0 via the ''pciback.hide'' grub entry. I am have the bridges setup in the

Greetings, I have a routing problem I am hoping can be solved. I have three networks. A Private network, and a dual network the private network connects too. The internal network talks through a gateway/router(linux redhat 7.2) that has a default route set that allows the internal network to talk to a computer on the external networks. The external network is a Redundant network scheme in

Shorewall 4.5.1.1 I have 5 interfaces on a centos box, the first two are internal on two different subnets, the next two are two different ISP''s and the last one is a private network for testing and administration. The second internal subnet (eth1) is rejecting all the arp requests to it and I get the following in the log files ever second or two - May 16 05:28:54 services kernel:

Hi, I'm building a firewall/router on Centos. I'm using Shorewall but have currently stopped and cleared the firewall rules to isolate the routing problem. My firewall box has 5 interfaces in it but currently only two are involved in the problem. eth1: inet addr:192.168.1.224 Bcast:192.168.1.255 Mask:255.255.255.0 eth3: inet addr:192.168.202.1 Bcast:192.168.202.255

Hello newsgroup, I hope somebody with more routing experience then me can help me with the problem I have. The setup is as described below. A dual internet provider routing, multiple local area networks, and a dmz network with one public and one private ip range. I followed the instructions at lartc.org, and so far everything is working. The default route is via

Hi all, I have one bridge system (used for controlling bandwidth) connected to three different DSL ISP provider. I have the following setup below: - +-------------+ | br0 | | -> eth1 | -> DSL_1 | -> eth2 | +-------------+ | br1 | | -> eth3 | -> DSL_2 | -> eth4 | +-------------+ | br2 | | -> eth5

Hello Shorewall list, I''m a happy Shorewall user since a few years now and everything works fine for me except one thing that I try to implement since a week, the multi-isp. I''ve downloaded the 2.4.0 Stable release yesterday and tried the RC2 since a week. My config is a Debian running a kernel 2.4.27 home made with the CONNMARK.diff patch applied I''m using 2 ISP,

Hi, I''m trying to use Shorewall (3.0.6) to accomplish what I thought was going to be fairly simple. Unfortunately, I can''t get the dmz to work correctly, and I''m getting martians logged against the interface at issue. Any help I could get would be greatly appreciated! A picture of my physical setup is attached. I have also attached a shorewall dump. To make a long