Date: Tue, 25 Apr 2006 16:31:12 -0400 From: "Wang, Xi \(GE, Research\)" <wangx@research.ge.com> To: <freebsd-ipfw@freebsd.org> Subject: Dummynet for multicast traffic on FreeBSD 6.0-Release Message-ID: <FA26BEF1EA775E4584FB34B91E14A1C412213B@SCHMLVEM01.e2k.ad.ge.com>
next in thread | raw e-mail | index | archive | help
Hi, I am using ipfw to introduce end-to-end delays for multicast NORM traffic on FreeBSD 6.0-RELEASE box on which mrouted is running. Without any ipfw rules, I was able to send and receive multicast traffic from sender and receivers. I was able to observe the multicast information through "netstat -g" on the FreeBSD box. However, when I introduced the following rules, I was not able to establish multicast sessions and no receivers can receive any packets from the sender. # sender ipfw add pipe 1 ip from 10.0.1.1 to 232.0.0.10 out # receivers ipfw add pipe 2 ip from 10.0.2.2 to 232.0.0.10 out ipfw add pipe 3 ip from 10.0.3.3 to 232.0.0.10 out ipfw add pipe 4 ip from 10.0.4.4 to 232.0.0.10 out ipfw pipe 1 config delay 100ms ipfw pipe 2 config delay 100ms ipfw pipe 3 config delay 100ms ipfw pipe 4 config delay 100ms I verified through "ipfw show" that the rules are active. To be sure that ipfw is actually working, I setup a rule that introduce end-to-end delay between 10.0.1.1 and 10.0.2.2 and it worked just fine. Does anyone know how to set up ipfw rules to introduce delay between sender and receivers for multicast sessions? Any suggestion is greatly appreciated. Thanks, -Xi
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?FA26BEF1EA775E4584FB34B91E14A1C412213B>