Re: OT: IPv6 packet generator/flood test

2004-11-09 Thread Alex Rousskov
On Tue, 9 Nov 2004, James wrote: Does anybody know of any IPv6 traffic generators, to stress test v6 routers? No need for setting hop by hop options, 6to4 tunneling, etc options. just plain unicast v6 packet generator. Web Polygraph[1] supports IPv6 addresses[2]. Polygraph is designed to test HTT

Re: Programmatically obtaining interface hardware addrs

2003-02-19 Thread Alex Rousskov
On Mon, 10 Feb 2003, Martin Stiemerling wrote: > See man getifaddrs: > > >http://www.freebsd.org/cgi/man.cgi?query=getifaddrs&sektion=3&apropos=0&manpath=FreeBSD+4.7-RELEASE > > You can obtain l2 addresses with this system call. I was not aware of the "l2 addresses" limit(?), and the man page do

Re: DHCP and media selection on bootup

2002-10-11 Thread Alex Rousskov
On Thu, 10 Oct 2002, Damian Gerow wrote: > I've tried setting to ifconfig_fxp0 lines in /etc/rc.conf, the first > for the media selection and the second for the DHCP instruction, but > that didn't work -- the card stayed in autoselect. > > Is there any way to manually set the NIC media, while ret

Re: programatically list all local IP addresses ?

2002-07-18 Thread Alex Rousskov
On Thu, 18 Jul 2002, Chuck T. wrote: > Yes portablity is a concern, unfortunately my program will > probably be used on Linux more than FreeBSD, sigh. I starting to > read about ioctl() and SIOCGIFADDR which appears to be portable > (and a pain). We had to write portable local address detection

Re: increasing throughput

2002-07-02 Thread Alex Rousskov
On Tue, 2 Jul 2002, John Angelmo wrote: > I was thinking of cunstructing a small routerbox in my sparetime. > Now since FreeBSD is my choise of OS i was thinking of a small box > silent box. > > So how can I combine speed, size, silence and price? > > I was thinking of vias small buget systems

Re: Squid filtering

2002-05-22 Thread Alex Rousskov
Ivo, Looks like your question is specific to Squid rather than FreeBSD. Please see Squid FAQ at www.squid-cache.org and ACL-related comments in the default squid.conf file. The info you need is there. If you need further help, please post to squid-users mailing list, after searching its archive.

Re: Forcing packets to the wire

2002-04-08 Thread Alex Rousskov
rest of our setup. Thank you, Alex. On Fri, 5 Apr 2002, Alex Rousskov wrote: > Hi there, > > I have two Ethernet NICs inside a PC. I want TCP/IP packets to > leave one NIC, go on the wire, and eventually arrive at the other NIC. > I do not want the kernel to be smart a

Re: Forcing packets to the wire

2002-04-06 Thread Alex Rousskov
On Sat, 6 Apr 2002, Nick Rogness wrote: > I had a brief thought of using an upstream device that could route > the appropriate nat'd addresses to each interface. This is not an option, unfortunately. The required functionality has to be implemented inside one PC (appliance). No exter

Forcing packets to the wire

2002-04-05 Thread Alex Rousskov
Hi there, I have two Ethernet NICs inside a PC. I want TCP/IP packets to leave one NIC, go on the wire, and eventually arrive at the other NIC. I do not want the kernel to be smart and shortcut the path. I want the outside world to see the packets and to think that my two NICs are two PCs

Re: 64 bit counters again

2002-01-14 Thread Alex Rousskov
On Mon, 14 Jan 2002, Terry Lambert wrote: > This is getting way off topic, but here is a business case > illustration. > > Are you perhaps doing what the Q/A people at a previous job were > doing, and stress-testing the crap out of a machine on a Gigabit > LAN, at or near wire speeds, when in th

funding TCP stack rewrite

2001-11-30 Thread Alex Rousskov
On Fri, 30 Nov 2001, Jonathan Lemon wrote: > On Fri, Nov 30, 2001 at 09:01:21AM -0600, mark tinguely wrote: > > Too bad there are not companies throwing money around to fund a good > > rewrite...of course there is some competative advatange to do so only > > for themselves. > > Anyone want to fund

Re: Connect(2) problem

2001-10-10 Thread Alex Rousskov
quot;man ip". Alex. > On Tue, 9 Oct 2001, Alex Rousskov wrote: > > > > > Are you running out of ephemeral ports? See net.inet.ip.portrange > > sysctl or do your own port management. > > > > Alex. > > > > On Tue, 9 Oct 2001, Nguyen-Tuong Lon

Re: Connect(2) problem

2001-10-09 Thread Alex Rousskov
Are you running out of ephemeral ports? See net.inet.ip.portrange sysctl or do your own port management. Alex. On Tue, 9 Oct 2001, Nguyen-Tuong Long Le wrote: > Hi all, > > I have a software that simulates web clients and servers to create > network congestion (for the purpose of doing resear

Re: why cannot bind to someipaddress:port when something else has*:port bound?

2001-05-30 Thread Alex Rousskov
On Wed, 30 May 2001 [EMAIL PROTECTED] wrote: > The following program binds *:1000 to a socket, and then tries to > bind 200.47.36.254:1000 to another socket, the error i gets is > "Address already in use". Why? *:1000 includes 200.47.36.254:1000 by definition of bind(2). Binding two sockets to o

Re: proper way to test for INET/INET6?

2001-03-25 Thread Alex Rousskov
On Mon, 26 Mar 2001, Jun-ichiro itojun Hagino wrote: > what are you planning to do after checking IPv6 support in the kernel? > applications should be written so that it would work on both > IPv4-only, IPv6-only and IPv4/v6 dual stack kernels, by using > getaddrinfo(3) and

Re: ipfw

2001-03-07 Thread Alex Rousskov
On Wed, 7 Mar 2001, Andy [TECC NOPS] wrote: > Just built a new kernel with > > options IPFIREWALL > options IPDIVERT > > and all went in ok. However, when I > user the ipfw command to add a rule > (or when rc.firewall does) I get the > following error message:- > > ipfw: getsocketopt(IP_FW_AD

Re: Quick question about IP aliasing

2001-02-28 Thread Alex Rousskov
On Wed, 28 Feb 2001, Luigi Rizzo wrote: > if you do care about this, you may want to restructure the data structure > used to store/match interface addresses. At the moment it is a linear list, > so the matching of incoming packets is probably Very Time Comsuming! We have a patch (posted to this

Re: Quick question about IP aliasing

2001-02-27 Thread Alex Rousskov
On Wed, 28 Feb 2001, Tobias Fredriksson wrote: > No you will be able to bind normaly to a.b.c.1, but i have had the > problems where if i specify anything to bind a.b.c.2 and it has bound on > all ip's aliased on the computer. Tobias, I know that I can bind to any (and all) of the 1000+

Re: Quick question about IP aliasing

2001-02-27 Thread Alex Rousskov
On Wed, 28 Feb 2001, Luigi Rizzo wrote: > the source of confusion is just the fact that when you ifconfig an > interface, you really give two distinct pieces of information: > 1. an ip address that the machine recognises as its own > 2. an address for a subnet connected to that interface. > Wit

Re: IPComp question

2001-02-02 Thread Alex Rousskov
On Fri, 2 Feb 2001, Yu-Shun Wang wrote: > What you pointed out below is true. But I am more > interested in the relative performance since the number > I measured were under exactly the same setup and traffic > condition. I believe it is a common pitfall to assume that sa

Re: IPComp question

2001-02-01 Thread Alex Rousskov
On Thu, 1 Feb 2001, Yu-Shun Wang wrote: > Another (sort of) related question: I've got the bandwidth > measurements for different algorthms using netperf. I was > really surprised that IPComp did so bad. Any ideas? AFAIK, netperf TCP_STREAM test (and may be others) is extremely