[LARTC] How to do network emulation on incoming traffic?

2005-10-11 Thread kevin-lartc
I'm trying to simulate a satellite link to a Linux server to test application performance. I haven't used any of the tc stuff before, but I blandly assured people it would be easy to set up a simulated long thin pipe on a spare network interface. However, now that I'm exploring, it's proving

[LARTC] VPN through PPP

2005-10-11 Thread Steve Comfort
Hi all, This is probably not the right place for this question, but maybe someone can help me out. I am trying to setup a VPN between two private addresses, using iproute2 (which is my only excuse for mailing this list). The setup is as below : eth0

Re: [LARTC] How to do network emulation on incoming traffic?

2005-10-11 Thread kevin-lartc
Somebody will probaby correct me quickly here but I dont think there is a way of creating jitter and latency and packet loss easily in linux. Er... excuse me? The network emulator module (netem) does it very nicely. The problem is, it's a traffic control queue discipline, and thus only works

[LARTC] Re: Prioritize ACK packets

2005-10-11 Thread Ricardo Soria
Hi: Look here: http://www.tldp.org/HOWTO/ADSL-Bandwidth-Management-HOWTO/ Hope this helps. Regards. Ricardo Soria. __ Correo Yahoo! Espacio para todos tus mensajes, antivirus y antispam ¡gratis! Regístrate ya -

Re: [LARTC] VPN through PPP

2005-10-11 Thread /dev/rob0
On Tuesday 2005-October-11 07:40, Steve Comfort wrote: The setup is as below : Your ASCII diagram was not clear. I have basically followed the VPN Howto and done the following : Are you talking about the old one from TLDP? Any suggestions would be greatly appreciated. Perhaps not much

[LARTC] Inaccurate results without natting the traffic.

2005-10-11 Thread Alvaro Motta
Hi folks. For quite a while, I tried to use linux (cbq and htb) to control bandwidth in order to replace a cisco equipment used to play this role on our network. After trying here and there, with a bunch of different distros, different versions, different compilations, ... the closest I could

Re: [LARTC] Inaccurate results without natting the traffic.

2005-10-11 Thread Corey Hickey
Alvaro Motta wrote: Now I come to you guys again, with the question: How to make cbq or htb work without masquerading the traffic? That really isn't supposed to have anything to do with it Can you post your configuration files/scripts and a quick ASCII map showing where your Linux machine

[LARTC] The effects of queueing on delay

2005-10-11 Thread Jonathan Lynch
I have a router with 3 network interfaces like in the following ASCII diagram below. All interfaces are 100mbit. There is tcp traffic being sent from net1 to net3 and from net2 to net3 and the tcp connections consume as much bandwidth as possible. There is a pfifo queue on the egress interface

[LARTC] Linha fale a vontede todos os dias (11)6839-0277

2005-10-11 Thread RH Equipe Teleinfor
Linha fale a vontade todos os dias, aquela que você só paga a assinatura www.telefonevesper.com.br - Original Message - From: Jonathan Lynch [EMAIL PROTECTED] To: lartc@mailman.ds9a.nl Sent: Tuesday, October 11, 2005 6:04 PM Subject: [LARTC] The effects of queueing on delay I have a

Re: [LARTC] VPN through PPP

2005-10-11 Thread Dariusz Dwornikowski
you could use openvpn -- *Dariusz 'tdi' Dwornikowski | Gentoo | admin at pozman.pl | *[JID]:[EMAIL PROTECTED]|[gg]:2266034|[IRC]:[EMAIL PROTECTED] | *[MAIL]:[EMAIL PROTECTED]|[WWW]:www.tdi.pozman.pl | *Serwery,administracja,webapps - www.ProAdmin.com.pl |

[LARTC] dual-isp incoming traffic problems

2005-10-11 Thread Daniel Wittenberg
I have two ISP connections, and am having some issues. I can connect to any services on the firewall, like the smtp gateway, but anything on the internal server only works from one connection. The lartc guide has a good example for what to do for services on the box, but leaves it open for how

Re: [LARTC] dual-isp incoming traffic problems

2005-10-11 Thread David Boreham
Daniel Wittenberg wrote: I have two ISP connections, and am having some issues. I can connect to any services on the firewall, like the smtp gateway, but anything on the internal server only works from one connection. I think we do what you're trying to achieve, but before I spend the time

Re: [LARTC] dual-isp incoming traffic problems

2005-10-11 Thread Daniel Wittenberg
Sounds like you are right on track to what I've got. Dual - isp, no BGP (DSL connections),and 3 interfaces, with at least a /28 on each ISP connection. That would be great if you have any insight! Dan On Tue, 2005-10-11 at 17:58 -0600, David Boreham wrote: Daniel Wittenberg wrote: I have

Re: [LARTC] dual-isp incoming traffic problems

2005-10-11 Thread Nelson Castillo
Any ideas on how to get connections through to the internal server from both ISP's? ISP #1 -- \ -- Linux Firewall -- internal server / ISP #2 -- Looks like you have the same problems I had. Check if this works for you: