Hi Robin , I didn'd want to fake ICMP echo_reply i forgot to mention that in this test i'm pinging my gateway to be shure that ping response is not bigger for some other reasonds i find that ping response is getting bigger some times with about 10ms but some times it;s doubles or even more but in most time is like constant. Here is some data if you find it intresting with shaper enabled 64 octets from 213.91.166.1: icmp_seq=22 ttl=254 time=30.9 ms 64 octets from 213.91.166.1: icmp_seq=23 ttl=254 time=40.9 ms 64 octets from 213.91.166.1: icmp_seq=24 ttl=254 time=14.3 ms 64 octets from 213.91.166.1: icmp_seq=25 ttl=254 time=14.4 ms 64 octets from 213.91.166.1: icmp_seq=26 ttl=254 time=34.2 ms 64 octets from 213.91.166.1: icmp_seq=27 ttl=254 time=14.2 ms 64 octets from 213.91.166.1: icmp_seq=28 ttl=254 time=14.2 ms 64 octets from 213.91.166.1: icmp_seq=29 ttl=254 time=14.2 ms 64 octets from 213.91.166.1: icmp_seq=30 ttl=254 time=31.1 ms 64 octets from 213.91.166.1: icmp_seq=31 ttl=254 time=14.3 ms 64 octets from 213.91.166.1: icmp_seq=32 ttl=254 time=14.2 ms 64 octets from 213.91.166.1: icmp_seq=33 ttl=254 time=130.9 ms without shaper enabled 64 octets from 213.91.166.1: icmp_seq=10 ttl=254 time=517.2 ms 64 octets from 213.91.166.1: icmp_seq=11 ttl=254 time=545.4 ms 64 octets from 213.91.166.1: icmp_seq=12 ttl=254 time=573.8 ms 64 octets from 213.91.166.1: icmp_seq=13 ttl=254 time=628.6 ms 64 octets from 213.91.166.1: icmp_seq=14 ttl=254 time=635.3 ms 64 octets from 213.91.166.1: icmp_seq=15 ttl=254 time=666.0 ms 64 octets from 213.91.166.1: icmp_seq=16 ttl=254 time=694.3 ms 64 octets from 213.91.166.1: icmp_seq=17 ttl=254 time=718.1 ms 64 octets from 213.91.166.1: icmp_seq=18 ttl=254 time=746.2 ms 64 octets from 213.91.166.1: icmp_seq=19 ttl=254 time=749.8 ms 64 octets from 213.91.166.1: icmp_seq=20 ttl=254 time=778.1 ms Hammond, Robin-David%KB3IEN wrote: > well if you want the line to look less conjested to a casual observer > you can fake the ICMP echo_reply. (best know which hosts are infact > on-line first). Faking the reply does not preclude actualy sending the > echo request, but allowing a duplicate (real) reply might look weird... > > > On Tue, 14 Feb 2006, Stanislav Nedelchev wrote: > >> Date: Tue, 14 Feb 2006 22:35:40 +0200 >> From: Stanislav Nedelchev <stanislav.nedelchev@xxxxxxxxx> >> To: lartc@xxxxxxxxxxxxxxx >> Subject: Guarantee ICMP respond time ? >> >> Hello to all people there . >> Can i guarantee ICMP respond time no metter how loaded is internet >> line . >> i have typical NATed enviroiment like >> >> External IP |linux router| LAN - 192.168.0.0/24 >> >> i have example setup with IMQ but is it possible to be done also if i >> attache htb to eth0 and eth1 for example . >> >> if i start shaper ping i better that without shaper but it's not >> guarantted i mean response time is not like constant. >> >> Maybe i'm missing something. >> Is it possible with HTB ot with something else like CBQ ? >> here is my example setup >> >> >> >> >> echo "Loading Traffic Shaper IMQ0 Upload" >> tc qdisc del dev imq0 root >> tc qdisc add dev imq0 root handle 2: htb default 333 r2q 1 >> >> tc class add dev imq0 parent 2: classid 2:2 htb rate 192kbit >> >> #ICMP >> tc class add dev imq0 parent 2:2 classid 2:30 htb rate 32kbit prio 0 >> tc filter add dev imq0 parent 2:0 protocol ip handle 5 fw classid 2:30 >> tc qdisc add dev imq0 parent 2:30 handle 30: sfq perturb 1 >> >> >> >> tc class add dev imq0 parent 2:2 classid 2:24 htb rate 96kbit ceil >> 160kbit prio 1 >> tc filter add dev imq0 parent 2:0 protocol ip handle 1 fw classid 2:24 >> >> tc qdisc add dev imq0 parent 2:24 handle 24: sfq perturb 10 >> >> tc class add dev imq0 parent 2:2 classid 2:26 htb rate 32kbit ceil >> 128kbit prio 3 >> tc filter add dev imq0 parent 2:0 protocol ip handle 2 fw classid 2:26 >> #tc qdisc add dev imq0 parent 2:26 handle 26: sfq perturb 10 >> >> tc class add dev imq0 parent 2:2 classid 2:28 htb rate 16kbit ceil >> 64kbit prio 5 >> tc filter add dev imq0 parent 2:0 protocol ip handle 3 fw classid 2:28 >> #tc qdisc add dev imq0 parent 2:28 handle 28: sfq perturb 10 >> >> tc class add dev imq0 parent 2:2 classid 2:333 htb rate 16kbit ceil >> 128kbit prio 7 >> tc qdisc add dev imq0 parent 2:333 handle 333: sfq perturb 10 >> >> echo "Done" >> >> #----------------------------------------------------------------------------- >> >> #----------------------------------------------------------------------------- >> >> >> >> echo "Loading Traffic Shaper imq1 Upload" >> tc qdisc del dev imq1 root >> tc qdisc add dev imq1 root handle 2: htb default 333 r2q 1 >> >> tc class add dev imq1 parent 2: classid 2:2 htb rate 192kbit >> >> #ICMP >> tc class add dev imq1 parent 2:2 classid 2:30 htb rate 32kbit prio 0 >> tc filter add dev imq1 parent 2:0 protocol ip handle 5 fw classid 2:30 >> tc qdisc add dev imq1 parent 2:30 handle 30: sfq perturb 1 >> >> >> >> tc class add dev imq1 parent 2:2 classid 2:24 htb rate 96kbit ceil >> 160kbit prio 1 >> tc filter add dev imq1 parent 2:0 protocol ip handle 1 fw classid 2:24 >> >> >> >> tc qdisc add dev imq1 parent 2:24 handle 24: sfq perturb 10 >> >> tc class add dev imq1 parent 2:2 classid 2:26 htb rate 32kbit ceil >> 128kbit prio 3 >> tc filter add dev imq1 parent 2:0 protocol ip handle 2 fw classid 2:26 >> #tc qdisc add dev imq1 parent 2:26 handle 26: sfq perturb 10 >> >> tc class add dev imq1 parent 2:2 classid 2:28 htb rate 16kbit ceil >> 64kbit prio 5 >> tc filter add dev imq1 parent 2:0 protocol ip handle 3 fw classid 2:28 >> #tc qdisc add dev imq1 parent 2:28 handle 28: sfq perturb 10 >> >> tc class add dev imq1 parent 2:2 classid 2:333 htb rate 16kbit ceil >> 128kbit prio 7 >> tc qdisc add dev imq1 parent 2:333 handle 333: sfq perturb 10 >> >> echo "Done" >> >> #Priority 0 >> iptables -t mangle -I PREROUTING -p icmp -j MARK --set-mark 5 >> >> #Priority 1 >> iptables -t mangle -A PREROUTING -i eth0 -p tcp --dport 3389 -j MARK >> --set-mark 1 >> iptables -t mangle -A PREROUTING -i eth0 -p tcp --sport 3389 -j MARK >> --set-mark 1 >> >> #Priority 2 >> iptables -t mangle -A PREROUTING -i eth0 -p tcp --dport 25 -j MARK >> --set-mark 2 >> iptables -t mangle -A PREROUTING -i eth0 -p tcp --sport 25 -j MARK >> --set-mark 2 >> >> #Priority 3 >> iptables -t mangle -A PREROUTING -i eth0 -p tcp --dport 80 -j MARK >> --set-mark 3 >> iptables -t mangle -A PREROUTING -i eth0 -p tcp --sport 80 -j MARK >> --set-mark 3 >> >> >> #Priority 0 >> iptables -t mangle -I POSTROUTING -p icmp -j MARK --set-mark 5 >> >> #Priority 1 >> iptables -t mangle -A POSTROUTING -i eth0 -p tcp --dport 3389 -j MARK >> --set-mark 1 >> iptables -t mangle -A POSTROUTING -i eth0 -p tcp --sport 3389 -j MARK >> --set-mark 1 >> >> #Priority 2 >> iptables -t mangle -A POSTROUTING -i eth0 -p tcp --dport 25 -j MARK >> --set-mark 2 >> iptables -t mangle -A POSTROUTING -i eth0 -p tcp --sport 25 -j MARK >> --set-mark 2 >> >> #Priority 3 >> iptables -t mangle -A POSTROUTING -i eth0 -p tcp --dport 80 -j MARK >> --set-mark 3 >> iptables -t mangle -A POSTROUTING -i eth0 -p tcp --sport 80 -j MARK >> --set-mark 3 >> >> _______________________________________________ >> LARTC mailing list >> LARTC@xxxxxxxxxxxxxxx >> http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc >> > > Microsoft: Where do you want to go tomorrow? > Linux: Where do you want to go today? > BSD: Are you guys coming, or what? > > > Robin-David Hammond KB3IEN > www.aresnyc.org. > _______________________________________________ LARTC mailing list LARTC@xxxxxxxxxxxxxxx http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
