similar to: Firewall.routing configuration problems

Hi, Apologies for the cross-posting; I''m not sure whether this is a firewall or routing issue, or both! I have four network cards, detailed below. eth0 and eth3 connect to my ISPs, and eth1 and eth2 connect to local networks. I want to route all traffic from eth2 to eth0, and from eth1 to eth3. However, I am having a few problems with this. eth0 ip: 192.168.100.253/24 gw:

Hello, Since I could not figure out my previous problem, let me ask in a different way. I have 3 networks inside my LAN. They are 172.16.55.0/24 , 172.16.56.0/24 and 172.16.57.0/24 respectively. They all use eth0 as an alias. I also have 2 uplinks to different ISPs. One of them is leased line and the other one is ADSL. One of my uplink is 81.8.120.18/30 with gateway 81.8.120.17 on eth1 and the

Hi, I have emailed the list before (email can be found here http://mailman.ds9a.nl/pipermail/lartc/2005q4/017220.html) regarding this matter. Basically, I am trying to set up a router for my college, to route conference guests over an adsl line, and students over an academic connection. I''ve looked at man ip(8), and a few examples, and think I have a configuration that will work, but was

Hello, I am trying something crazy here. I have gone through the old archives, lartc.org and lot''s of documentation, but still something is wrong. Here is the situation; The server is Fedora core 2 running kernel 2.6.5 I have 2 uplinks to two different ISP''s. (It will be 3-4 in the future). These ISP''s should serve the bandwith to local clients with multiple subnets.

Hi, I have a problem with my script. I have a debian with a kernel 2.6.8 patched with patch-2.6.8-ja1.diff of nano.txt site. I have 3 internet connections : - eth1 : - ip : 192.168.8.75 - gw : 192.168.8.73 - eth2 : - ip : 192.168.1.200 - gw : 192.168.1.2 - eth3 : - ip : 192.168.2.200 - gw : 192.168.2.1 and my eth0 for

Hi, I have a simple question (well, at least I think it''s simple!). I have a router, with four Ethernet cards; eth0-eth3. eth0 and eth3 are the ''external'' cards, connecting to my ISPs. eth1 and eth2 are connected to my internal networks. What I want to do is basically filter all the traffic from one card to another, in this configuration: eth1 to eth3 eth2 to eth0

Hi, I have a linux router with 4 ethernet cards; eth0 through eth3. Basically, all I want to do is route all traffic from eth2 to eth0, and all traffic from eth1 to eth3. I''ve looked through the LARTC how-to, specifically at chapter 4, about multiple providers. However, I am still a bit confused, and not sure how to set up my routing tables, as my scenario differs from the one in the

Hi, I have a suspicious problem with multiple uplinks configuration. First of all my configuration: 1) kernel 2.6.20.3 2) iptables 1.3.7 3) last iproute (for masked marks) All wan interfaces are bridged (stp disabled) in only one interface (wan0), all lan interfaces are bridged (stp enabled) in only one interface (zlan0). The wan0 bridge is to allow UPnP works. To allow related

Hi! I have read all informations i could find, but some things are still not clear. My setup is: ---INTERNET1(eth0)-\ /- Local net1 (eth2) GW ---INTERNET2(eth1)-/ \- Local net2 (eth3) I have NAT and a working setup using HTB,SFQ, classifying with the iptables -j CLASSIFY way. I shape only the traffic coming from the internet heading to the intranet. I would like

Hello, i have had a terribe day today, why? because i have been so 4 or 5 hours trying to do work this and i have not finished it. I feel very pleased if anything can help me. I have two isp connections: eth0: dhcp ip1: 82.198.*.* gw1: 82.198.*.* and a router adsl in ip 192.168.0.253: eth1: static ip2: 192.168.0.254 gw1: 192.168.0.253 the same machine has 3 more networks cards but i am

Hi, I''ve setup a gateway using multiple default gateways and netfilter MASQUERADE to load balance traffic between two DSL interfaces and one dedicated link, and when I try to download something big, or when I''m using MSN (both in clients under this gateway), sometimes, or most times, after a while the connection timeouts. The connection doesn''t seem to change its

Okay here is my setup: Gentoo Box running 2.6.4 w/ 4 NICs 1 NIC is for internal network 3 NICs are for external network The machine has a static address assigned to the internal network nic. This nic runs dhcp and dns forwarding. The other 3 nics have external dynamic IP addresses. All will have the same gateway. There are 3 NICs because this is a very large pipe, that will only allocate a

I've run into a problem on my KVM host where a single guest will be unreachable to other guests on the same host. This host has 2 bridged devices and guests assigned to each have the same issue. I've noticed that when I can't reach the problematic guest, the ARP entry for that system is incorrect. This issue seems to only be a problem about 75% of the time when making connections

Hi, I am new in LARTC list. I had intermediate skills in networking. What I tried to do: Use 2 links with loadsharing + falt toletant (to add bandwitdh) ok ! I am use Debian Etch in router/fw With kernel debian default + routes-2.6.17-12.diff patch The Problem: The iproute2 just route thought the last gateway of nexthop rule. I was running tcpdump in 2 terminals, tcpdump -nni eth0 ...

Hello, I have finished setting up the load balancer with IPROUTE ... also patch the kernel to support DGD and now it''s working fine with the valuable guide at LARTC website, Julian Anastasov, and the kind people in this mailing list. Now I would like to launch a web server and a ftp server to the public but I''m stuck into a problem and really need your help. Currently internal

Hi, Below is my Linux firewall network configuration: - eth0 - isp 1, IP: 1.1.1.10, Netmask: 255.255.255.252 eth1 - isp 2, IP: 2.2.2.10, Netmask: 255.255.255.252 eth2 - lan, IP: 172.16.0.254, Netmask: 255.255.255.0 eth3 - dmz, 192.168.0.254, Netmask: 255.255.255.0 isp 1 gateway: 1.1.1.9 isp 2 gateway: 2.2.2.9 Below is my iptables rules: - echo 1 > /proc/sys/net/ipv4/ip_forward iptables

I recompiled yet 2.6.19.1 kernel (using iptables with the same patches too). The configuration for this test is: 1) linux box with 2.6.19.1 kernel (SMP machine) with these patches/modules: a) l7-filter b) ipp2p c) connlimit d) set 2) 4 ethernet interfaces: a) 2 external (eth1 and eth3) interfaces with balanced links (as described in nato-howto) bridged as wan0

Hi all, I have the following configuration: _______ +------------+ / diginet link | | | +-------------+ Provider 1 +------- __ | | | / ___/ \_

Firstly I don''t think this is a shorewall problem, but I suspect shorewall might be able to solve it for me. I''ve posted this so far at http://mandrakeusers.org/index.php?showtopic=18942 I''ve stumble upon a problem that has me stumped I have a multipath router using 2.6.8.1 with patches from here http://www.ssi.bg/~ja/#routes basic setup: ___ ISP1

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