similar to: Routing question

Hello, I started off by reading the Linux Advanced Routing & Traffic Control Howto, then searched a bit around the web. I see many documents discussing these matters with kernel 2.2.x but they are quite old, something around 1998-2000. I have some questions but I might as well start by exposing my setup to clarify things. I have a couple of internet links: a leased line of 256kbit/s and an

I'm attempting to configure source-specific routing so that my servers can exist on multiple subnets from multiple upstream providers. A rough diagram of the network layout: ISP1 router (blackbox, routes subnet A, address on subnet A) \ -----------eth0(firewall)eth1---((servers)) / ISP2 router (blackbox, routes subnet B, address on subnet B) The aim is to allow the servers to use

Hello all, I am going through the LARTC howto to understand how the iproute2 works. But some concepts like Policy Routing, RPDB etc are not clear to me. I am pretty new to iproute, beeing using route command for long... From what I understand 1. rules (ip rule) tell how to select packets for routing and route (ip route) tell where to route the selected packets. 2. A collection of rules is

I am a newbie, where the heck do I start?

Assuming if I have rules matching the same packet, the one chosen is the lower preference value or the high ? For example # ip rule list .... 100 from 192.168.1.0/24 lookup main 200 from all fwmark 5 lookup first ..... Packet is matching both rules, the one with priority/preference 100 or 200 is selected ? _______________________________________________ LARTC mailing list /

I set up this config: +------+ -+ ISP1 +--+ +------+ | +-------+ +--+ linux | +------+ | +-------+ -+ ISP2 +--+ +------+ No problem. Standard setup with two ISP''s. Both routed subnets. Default gateway is ISP1. No magic here. Now I put a server behind the Linux box. I want the server to be reachable on an /extra/ IP in the routed subnet of ISP2. +------+ -+ ISP1

Hello all, I do not read C very well (especially kernel C). Though I have tried to muddle my way through an understanding of what''s going on in fib_hash.c, fib_rules.c, and route.c, I have not succeeded to my satisfaction, hence my post. I''m trying to document the general process of route selection, and have come up with the following overview. Could somebody point out any

Hello I am new at this. I have compiled the libogg and libvorbis libraries and installed them on my MacOS X machine. The libao cannot be compiled yet since stuff is missing. But I only want to play round with encoding right now. So I also unpacked the vorbis tools distribution and am in oggenc. In oggenc I do a cc *.c -I. -L/usr/local/lib -logg -lvorbis -lvorbisenc I get unknown symbols

Hi, I''ve set up a Linux box with redhat on to act as an internet gateway and I''m running into a few problems. Its got two adsl modems connected to it, both connected to seperate 512kbs lines. Now I''ve followed the simple source routing in the advanced routing howto to the letter but it doesnt work. I''ve got it autoconnecting on startup and redhat puts ppp1

Hi, I''m sorry for "novice"-level question, but I hope your expert advice will save me many painful hours running after my own tail... Let assume I have Linux box with eth0, eth1 and eth2 interfaces. Each one has IP assigned from different network. By default, IP address associated with eth0 is chosen as default routing. My application creates thee TCP sockets and explicitly

Hi, Is it possible to create a routing rule that depends on the source host/network, besides the target host/network? E.g. route everything from 192.168.0.x to 10.0.0.1, and route everything from 192.168.1.x to 10.0.0.1. TIA -- Groeten, Joost Kraaijeveld Askesis B.V. Molukkenstraat 14 6524NB Nijmegen tel: 024-3888063 / 06-51855277 fax: 024-3608416 web: www.askesis.nl

I have two adsl lines on my linux firewall box and i want to do some load balance between them...i tried a lot of different things, but it isn´t working...Following the instructions of http://lartc.org/howto/lartc.rpdb.multiple-links.html i used the configuration above. using "iptraf" I can see some few packets using the ppp1 connection, but almost all the packets use ppp0 connection.

hello list (and martin) ;x i have now composed my final(?) policy routing design. the goals i had when beginning with this, for you that have not follow mine and martins thread, was to 1) only let 192.168.1/24 to see all routes, 2) not route between defined networks, except to and from 192.168.1/24 and 3) not defined networks should only be able to reach 192.168.1/24. this might sound simple.

Hi All, I''m trying to do some traffic shaping on an ethernet bridge. Currently, I have the following setup working: ifconfig eth0 down brctl addbr br0 brctl addif br0 eth0 brctl addif br0 eth1 brctl stp br0 off ifconfig eth0 0.0.0.0 up ifconfig eth1 0.0.0.0 up ifconfig br0 up This creates a bridge consisting of eth0 and eth1. So far so good. I now want to use tc to shape traffic

Hi All, I need to do some tricky filtering stuff. Can anyone tell me if any of the following are possible? * match on a combination of firewall mark AND u32 criteria. ie. handle 6 fw AND u32 match ip src 1.2.3.4/32 - to match packets from 1.2.3.4 which have been marked elsewhere OR * to OR the values of u32 matches. Something like u32 match ip src 1.2.3.4/32 OR match ip dst 1.2.3.4/32 - to

Hi all, I''m having a hell of a time getting my IFB to work. I know I''ve done this before, so I''m missing something stupid. Can anybody tell me what it might be? Configs as follows: -------- #!/bin/sh modprobe ifb numifbs=1000 modprobe act_mirred modprobe 8021q brctl addbr br0 brctl setfd br0 0 brctl stp br0 off brctl addif br0 eth1 brctl addif br0 eth2 ifconfig eth1

I am having problems getting samba to join a Windows NT Domain. I have done a debug. resolve_lmhosts: Attempting lmhosts lookup for name HPKFPN1<0x20> resolve_hosts: Attempting host lookup for name HPKFPN1<0x20> Connecting to 10.1.1.5 at port 445 error connecting to 10.1.1.5:445 (Connection refused) Connecting to 10.1.1.5 at port 139 lsa_io_sec_qos: length c does not match size 8

I'm new to R and have not been able to find what I am looking for online. I found the system command but that seems to be used for getting lists of directories, etc. I am trying to replicate something that I used to do in SAS. I am simulating some data (which I can do in R with a particular package) and then trying to call an outside program to fit a specific model to the data. In SAS, the

I am unsure how to sort a column by date if it is currently in the form: YYYYMMDD For example the months: 20071031 20071130 20071231 Etc. Regards, Leigh [[alternative HTML version deleted]]

ok i will do it in text: 66.92.114.46 eth0 209.141.2.194 eth1 192.168.119.101 eth2 192.168.120.101 eth3 What i have is a linux box RH7.3 which will eventually run Shorewall Firewall. On this box there is eth0 66.92.114.46 conneted to isp1 and eth1 209.141.2.194 connected to isp2 It also has eth2 192.168.119.101 and eth3 192.168.120.101 which will connect to a failover appliance which has 2 wan