Great posts! Guess that really confirms my understanding of how our ISPs today push our packets around ... On Jul 2, 2011 2:13 PM, "Dan Sweeney" <[email protected]> wrote: > Oh yeah.. and whats weird about all this is that the 198.32.172.0/24 block shows AS9821 which belongs to DOST-PH-AP > > Go figure.. > > Do good stuff > Dan > On Jul 2, 2011, at 1:57 PM, Dan Sweeney wrote: > >> Well... >> >> As 198.32.172.0/24 is a block PLDT (AS9299) hands out from PHIX (AS7707). >> >> Ping: >> >> They filter ping from other networks (outside of AS9299) going into AS7707 so its not likely if your not on PLDT myDSL, PLDT Corporate or Smart Broadband. >> >> Traceroute will work up to the point the traffic transitions into PLDT's AS but will most likely die at that point. >> >> As far as Globe Tatoo (AS4775).. They NAT (and if your on their WiMAX DOUBLE NAT) you getting to the outside world.. so thats the first strike against performance. >> >> Globe doesn't have a direct peer with PLDT worth mentioning in the Philippines.. So you reach them buy going OUT of the Philippines and thru some public IX >> >> So from Globe AS4775 backbone tracing to 198.32.172.140 dies at: >> >> Tracing the route to 198.32.172.140 >> >> 1 124.6.180.117 [AS4775] 4 msec 4 msec 4 msec >> 2 120.28.0.137 [AS4775] 4 msec 4 msec 4 msec >> 3 120.28.0.178 [AS4775] 4 msec 4 msec 4 msec >> 4 203.177.3.5 [AS4775} 4 msec 4 msec 4 msec >> 5 * * * >> 6 * * * >> >> Basically when it hits the transition point going out of Globes network icmp is filtered. >> >> From SkyBroadband: >> >> traceroute to 198.32.172.140 (198.32.172.140), 64 hops max, 52 byte packets >> 1 192.168.100.1 (192.168.100.1) 1.242 ms 1.308 ms 1.121 ms >> 2 * 114.108.230.1 (114.108.230.1) 47.098 ms 25.536 ms >> 3 ge-1-4.sj1.skybroadband.com.ph (114.108.192.153) 15.177 ms 18.800 ms 16.102 ms >> 4 * 10ge1-1-0.gw.sj.skybroadband.com.ph (114.108.192.133) 71.260 ms 39.370 ms >> 5 202.78.121.2 (202.78.121.2) 24.924 ms 92.842 ms 18.963 ms >> 6 202.164.168.221 (202.164.168.221) 27.052 ms 93.345 ms po14.ccore.rsv.bayan.net.ph (202.78.96.186) 21.440 ms >> 7 202.164.168.221 (202.164.168.221) 16.651 ms 10.807 ms * >> 8 * * 13.91.0.202.mix.static.eastern-tele.com (202.0.91.13) 171.043 ms >> 9 * * * >> >> Same thing.. hits the transition point and dies.. >> >> From ETPI >> >> Tracing the route to 198.32.172.140 >> >> 1 97.17.85.115.ids.service.eastern-tele.com (115.85.17.97) [AS 9658] 0 msec 0 msec 0 msec >> 2 rar-a.g1-11.corenet.eastern-tele.com (120.89.5.53) [AS 9658] 0 msec 4 msec 0 msec >> 3 82.128.50.116.corenet.infra.eastern-tele.com (116.50.128.82) [AS 9658] 0 msec 0 msec 0 msec >> 4 mix-9658gw.manilaix.net.ph (202.0.91.18) [AS 9670] 4 msec 0 msec 0 msec >> 5 * * * >> 6 * >> >> Notice that Both SKyBroadband and ETPI think the best way to PHIX 198.32.172.0/24 is via MIX (ETPI's IX). >> >> From noaccess in Santa Clara California: >> >> raceroute to 198.32.172.162 (198.32.172.162), 30 hops max, 40 byte packets >> 1 sj1-e1-0.net.noaccess.com (193.72.216.1) [AS15096] 0.398 ms 0.389 ms 0.387 ms >> 2 v601.core1.fmt2.he.net (64.62.142.145) [AS6939] 0.642 ms 0.872 ms 1.072 ms >> 3 * * * >> 4 * * * >> >> dies again.. >> >> And since the resource is available it seems that we should look at going OUT from a machine inside PHIX in the 198.32.172.0/24 block >> >> I have done so and its filtered at the border between PHIX (AS7707) and PLDT (AS9299) even though PLDT basically controls both networks. >> >> So you will probably die at 121.127.0.53 (I think the gateway router between PHIX and PLDT). >> >> I'm to lazy today to hook up PLDT myDSL link but basically if your not in PLDT's AS9299 or InfoCom (AS7629) you'll most likely get pretty dismal performance trying to reach anything in PHIX. >> >> Do good stuff >> Dan >> >> >> >> >> >> >> On Jun 15, 2011, at 1:41 PM, John Osena wrote: >> >>> 198.32.172.130 >> > > _________________________________________________ > Philippine Linux Users' Group (PLUG) Mailing List > http://lists.linux.org.ph/mailman/listinfo/plug > Searchable Archives: http://archives.free.net.ph
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