CRAN

Author	All Replies
voip_user join:2006-06-14 Middletown, CT	CRAN How can i check if i am on Comcast CRAN or not?
	to forum · permalink · 2006-08-04 18:32:55 ·

sortofageek Not Trouble Premium,Mod join:2001-08-19 There & Then kudos:14 Host: Comcast HSI Comcast Cable TV Team Helix Distributed Comput.. Linksys	Have you read this forum FAQ, especially the thread to which it links? »Comcast High Speed Internet FAQ »What is CRAN? -- My Folding@Home Farm * Join Team Helix? * I am praying for Rebekah.
	to forum · permalink · 2006-08-04 18:36:51 ·
Nerdtalker Working Hard, Or Hardly Working? Premium,MVM join:2003-02-18 Tucson, AZ	reply to voip_user Essentially, if you do a traceroute to somewhere (anywhere) and see a whole bunch of hops with IPs that resolve to comcast, you're on CRAN. The idea is that the Comcast internal network has less latency than routing through the greater internet, so traffic goes through that. -- "Some people never see the light till it shines thru bullet holes." -Bruce Cockburn I'm testing Gmail's spam filters: Broadbandreports1@gmail.com Spam: 12900+ messages currently using 406 MB.
	to forum · permalink · 2006-08-04 18:48:48 ·
Johkal Cool Cat Premium,MVM join:2002-11-13 Happy Valley kudos:5 Reviews: ·Comcast	A question: How many(on average) Comcast routers are in a trace if not CRAN? Maybe 1 or 2? -- Write me up a 125.......I Can't Drive 55 »redrocker.com/ »cabowabo.com/
	to forum · permalink · 2006-08-04 19:01:30 ·
SolarPup Hardware God Premium join:2002-03-07 Greeley, CO	2, maybe 3 at the most.
	to forum · permalink · 2006-08-04 19:41:13 ·
Johkal Cool Cat Premium,MVM join:2002-11-13 Happy Valley kudos:5	So CRAN averages about 6 or so routers?
	to forum · permalink · 2006-08-04 19:46:01 ·
Nerdtalker Working Hard, Or Hardly Working? Premium,MVM join:2003-02-18 Tucson, AZ	It's hard to say. I'd say that most of the time, there are less than five or six hops after CRAN ends before the destination. I'm sure there are exceptions, but on average it does seem to result in pretty good latency. -- "Some people never see the light till it shines thru bullet holes." -Bruce Cockburn I'm testing Gmail's spam filters: Broadbandreports1@gmail.com Spam: 12900+ messages currently using 406 MB.
	to forum · permalink · 2006-08-04 20:01:20 ·
Johkal Cool Cat Premium,MVM join:2002-11-13 Happy Valley kudos:5	Do you mind posting a trace? Might be good for the OP to see CRAN.
	to forum · permalink · 2006-08-04 20:07:42 ·
Nerdtalker Working Hard, Or Hardly Working? Premium,MVM join:2003-02-18 Tucson, AZ 1 edit	Here's a traceroute to dslreports.com: C:\Documents and Settings\Brian Klug>tracert dslreports.com Tracing route to dslreports.com [209.123.109.175] over a maximum of 30 hops: 1 <1 ms <1 ms <1 ms m0n0wallrouter.xxxx[192.168.xxx.xxx] 2 9 ms 21 ms 13 ms xxx.xxx.xxx.xxx 3 11 ms 9 ms 10 ms ge-1-2-sr01.sabino.az.pima.comcast.net [68.87.17 2.217] 4 12 ms 11 ms 9 ms te-9-2-ar01.pimaco.az.pima.comcast.net [68.87.17 2.17] 5 12 ms 25 ms 15 ms 12.127.141.61 6 75 ms 75 ms 77 ms tbr2-p013504.phmaz.ip.att.net [12.123.206.14] 7 71 ms 72 ms 74 ms tbr2-cl1592.dlstx.ip.att.net [12.122.10.81] 8 72 ms 71 ms 71 ms tbr1-cl6.sl9mo.ip.att.net [12.122.10.89] 9 75 ms 73 ms 73 ms tbr1-cl4.wswdc.ip.att.net [12.122.10.29] 10 75 ms 74 ms 75 ms tbr2-cl27.wswdc.ip.att.net [12.122.9.150] 11 71 ms 69 ms 70 ms tbr2-cl15.n54ny.ip.att.net [12.122.10.53] 12 72 ms 70 ms 69 ms gar1-p370.nwrnj.ip.att.net [12.123.0.157] 13 78 ms 75 ms 77 ms att-gige.esd1.nwr.nac.net [12.119.140.26] 14 74 ms 71 ms 71 ms 3.ge-3-0-0.gbr2.nwr.nac.net [209.123.11.189] 15 94 ms 73 ms 73 ms 0.so-0-3-0.gbr1.oct.nac.net [209.123.11.233] 16 72 ms 71 ms 71 ms www.dslreports.com [209.123.109.175] Trace complete. You can see how many comcast and att hops there are between me and dslreports, and how there are only four hops outside CRAN, and inside NAC's network. *edit* probably not CRAN behavior. My mistake.
	to forum · permalink · 2006-08-04 20:11:59 ·
dadkins Can you do Blu? Premium,MVM join:2003-09-26 Hercules, CA kudos:18	reply to Johkal Mine: Tracing route to www.yahoo.akadns.net [209.131.36.158] over a maximum of 30 hops: 1 1 ms 2 ms 1 ms 192.168.0.1 2 * * * Request timed out. 3 10 ms * 10 ms GE-1-1-ur03.pinole.ca.sfba.comcast.net [68.87.19 6.249] 4 8 ms 11 ms * 10g-8-1-ur01.pinole.ca.sfba.comcast.net [68.87.1 92.97] 5 * 11 ms * 10g-9-3-ar01.sfsutro.ca.sfba.comcast.net [68.87. 192.93] 6 26 ms 11 ms 12 ms 68.87.226.130 7 14 ms 26 ms 11 ms 12.117.240.17 8 15 ms 13 ms 14 ms tbr2032701.sffca.ip.att.net [12.123.12.53] 9 23 ms 10 ms 11 ms ggr2-p3120.sffca.ip.att.net [12.123.12.22] 10 13 ms 15 ms 14 ms 192.205.33.18 11 20 ms 14 ms 13 ms 4.71.112.14 12 15 ms 15 ms 16 ms g-1-0-0-p161.msr1.sp1.yahoo.com [216.115.107.63] 13 14 ms 16 ms 14 ms te-8-1.bas-a2.sp1.yahoo.com [209.131.32.19] 14 15 ms 14 ms 15 ms f1.www.vip.sp1.yahoo.com [209.131.36.158] Trace complete. -- Think outside the Fox... Opera
	to forum · permalink · 2006-08-04 20:13:19 ·
Johkal Cool Cat Premium,MVM join:2002-11-13 Happy Valley kudos:5	Cool! Good examples for him!
	to forum · permalink · 2006-08-04 20:17:36 ·
NetFixer From my cold dead hands Premium join:2004-06-24 The Boro Reviews: ·Comcast Business.. ·Vonage ·Cingular Wireless ·Comcast	reply to Nerdtalker Here is a traceroute I think which shows CRAN, I don't think that the att.net hops are actually considered to be part of CRAN. Tracing route to www.dslreports.com [209.123.109.175] over a maximum of 30 hops: 1 <10 ms <10 ms <10 ms dcs-gw2.dcs-net [192.168.1.254] 2 * * * Request timed out. 3 13 ms * * 68.86.150.137 4 10 ms 12 ms * 68.86.148.89 5 11 ms * 9 ms 68.86.148.101 6 10 ms 11 ms 21 ms 68.86.148.73 7 13 ms 12 ms 10 ms 68.86.148.69 8 13 ms 13 ms 12 ms 68.86.148.105 9 19 ms 20 ms 17 ms 68.86.148.41 10 27 ms 42 ms 29 ms 68.86.148.9 11 27 ms 27 ms 35 ms 68.86.148.110 12 65 ms 32 ms 34 ms 12.116.236.49 13 50 ms 53 ms 48 ms tbr1011201.attga.ip.att.net [12.123.20.234] 14 47 ms 51 ms 55 ms tbr2-cl17.wswdc.ip.att.net [12.122.10.69] 15 64 ms 60 ms 61 ms tbr2-cl15.n54ny.ip.att.net [12.122.10.53] 16 49 ms 52 ms 54 ms gar1-p370.nwrnj.ip.att.net [12.123.0.157] 17 59 ms 76 ms 56 ms att-gige.esd1.nwr.nac.net [12.119.140.26] 18 49 ms 49 ms 51 ms 3.ge-3-0-0.gbr2.nwr.nac.net [209.123.11.189] 19 116 ms 135 ms 168 ms 0.so-0-3-0.gbr1.oct.nac.net [209.123.11.233] 20 58 ms 64 ms 55 ms www.dslreports.com [209.123.109.175] Trace Complete. -- We can never have enough of nature. We need to witness our own limits transgressed, and some life pasturing freely where we never wander. Test your firewall.
	to forum · permalink · 2006-08-04 20:18:16 ·
Johkal Cool Cat Premium,MVM join:2002-11-13 Happy Valley kudos:5	Wow, you are 10 routers in network!
	to forum · permalink · 2006-08-04 20:19:49 ·
voip_user join:2006-06-14 Middletown, CT	reply to Johkal Here is mine .. C:\>tracert www.broadbandreports.com Tracing route to broadbandreports.com [209.123.109.175] over a maximum of 30 hops: 1 3 ms 4 ms 5 ms 192.168.251.1 2 15 ms 14 ms 14 ms 73.157.12.1 3 16 ms 14 ms 15 ms 68.87.183.149 4 14 ms 14 ms 14 ms 10g-9-1-ur01.killingworth.ct.hartford.comcast.net [68.87.182.46] 5 16 ms 14 ms 14 ms 10g-9-1-ur01.clinton.ct.hartford.comcast.net [68.87.182.42] 6 23 ms 14 ms 20 ms 10g-4-2-rr01.branford.ct.hartford.comcast.net [68.87.182.38] 7 17 ms 14 ms 15 ms 10g-4-1-rr01.wallingford.ct.hartford.comcast.net [68.87.182.213] 8 17 ms 14 ms 14 ms 10g-4-1-rr01.berlin.ct.hartford.comcast.net [68.87.182.217] 9 14 ms 15 ms 19 ms 68.87.182.5 10 14 ms 14 ms 14 ms 10g-8-1-ar01.berlin.ct.hartford.comcast.net [68.87.182.90] 11 19 ms 19 ms 20 ms 12.116.169.5 12 23 ms 19 ms 29 ms tbr1032801.n54ny.ip.att.net [12.123.0.34] 13 20 ms 19 ms 19 ms gar1-p350.nwrnj.ip.att.net [12.123.0.153] 14 40 ms 19 ms 19 ms att-gige.esd1.nwr.nac.net [12.119.140.26] 15 28 ms 23 ms 19 ms 3.ge-3-0-0.gbr2.nwr.nac.net [209.123.11.189] 16 21 ms 19 ms 25 ms 0.so-0-3-0.gbr1.oct.nac.net [209.123.11.233] 17 22 ms 21 ms 19 ms www.dslreports.com [209.123.109.175] Trace complete.
	to forum · permalink · 2006-08-04 20:23:53 ·
Nerdtalker Working Hard, Or Hardly Working? Premium,MVM join:2003-02-18 Tucson, AZ	reply to NetFixer Yeah NetFixer , that looks much more like CRAN because those IP addresses don't resolve to dns names, which is characteristic of CRAN. To be quite honest, I'm not sure if my area is even CRAN yet, so that tracert I posted might not be exemplary. -- "Some people never see the light till it shines thru bullet holes." -Bruce Cockburn I'm testing Gmail's spam filters: Broadbandreports1@gmail.com Spam: 12900+ messages currently using 406 MB.
	to forum · permalink · 2006-08-04 20:24:17 ·
K Patterson Premium,MVM join:2006-03-12 Columbus, OH kudos:1	reply to Nerdtalker I don't see any indication that you are on CRAN. There are only two Comcast hops, neither show discarded ICMP packets, and both have rDNS entries. Net fixer's post shows a typical CRAN configuration. Dadkins is also probably CRAN.
	to forum · permalink · 2006-08-04 20:24:41 ·
NetFixer From my cold dead hands Premium join:2004-06-24 The Boro Reviews: ·Comcast Business.. ·Vonage ·Cingular Wireless ·Comcast	reply to Johkal said by Johkal: Wow, you are 10 routers in network! That is actually a basic characteristic of CRAN. Here is the whois info for the 68.x.x.x IP block (Comcast) and the 12.x.x.x IP block (ATT) to show why I don't think that the att.net hops can be considered part of CRAN. OrgName: Comcast Cable Communications, Inc. OrgID: CMCS Address: 1800 Bishops Gate Blvd City: Mt Laurel StateProv: NJ PostalCode: 08054 Country: US NetRange: 68.80.0.0 - 68.87.255.255 CIDR: 68.80.0.0/13 NetName: JUMPSTART-2 NetHandle: NET-68-80-0-0-1 Parent: NET-68-0-0-0-0 NetType: Direct Allocation NameServer: DNS.INFLOW.PA.BO.COMCAST.NET NameServer: DNS.CMC.CO.DENVER.COMCAST.NET Comment: ADDRESSES WITHIN THIS BLOCK ARE NON-PORTABLE RegDate: 2002-01-28 Updated: 2006-01-26 RTechHandle: IC161-ARIN RTechName: Comcast Cable Communications Inc RTechPhone: +1-856-317-7200 RTechEmail: CNIPEO-Ip-registration@cable.comcast.com OrgAbuseHandle: NAPO-ARIN OrgAbuseName: Network Abuse and Policy Observance OrgAbusePhone: +1-856-317-7272 OrgAbuseEmail: abuse@comcast.net OrgTechHandle: IC161-ARIN OrgTechName: Comcast Cable Communications Inc OrgTechPhone: +1-856-317-7200 OrgTechEmail: CNIPEO-Ip-registration@cable.comcast.com CustName: AT&T Worldnet Services Address: 200 South Laurel Ave. City: Middletown StateProv: NJ PostalCode: 07748 Country: US RegDate: 2003-11-26 Updated: 2003-11-26 NetRange: 12.122.0.0 - 12.123.255.255 CIDR: 12.122.0.0/15 NetName: ATTSVI-12-122-0-0 NetHandle: NET-12-122-0-0-1 Parent: NET-12-0-0-0-1 NetType: Reassigned Comment: Contact AT&T Abuse ( abuse@att.net ) for policy abuse issues. RegDate: 2003-11-26 Updated: 2003-11-26 RTechHandle: DK71-ARIN RTechName: Kostick, Deirdre RTechPhone: +1-919-319-8249 RTechEmail: help@ip.att.net OrgAbuseHandle: ATTAB-ARIN OrgAbuseName: ATT Abuse OrgAbusePhone: +1-919-319-8130 OrgAbuseEmail: abuse@att.net OrgTechHandle: ICC-ARIN OrgTechName: IP Customer Care OrgTechPhone: +1-888-613-6330 OrgTechEmail: qhoang@att.com OrgTechHandle: IPSWI-ARIN OrgTechName: IP SWIP OrgTechPhone: +1-888-613-6330 OrgTechEmail: help@ip.att.net -- We can never have enough of nature. We need to witness our own limits transgressed, and some life pasturing freely where we never wander. Test your firewall.
	to forum · permalink · 2006-08-04 20:27:50 ·
dadkins Can you do Blu? Premium,MVM join:2003-09-26 Hercules, CA kudos:18	reply to voip_user {Don't quote me} I think blank or Comcast hops with 10g are considered CRAN... 10g-8-1-ur01... -- Think outside the Fox... Opera
	to forum · permalink · 2006-08-04 20:28:03 ·
K Patterson Premium,MVM join:2006-03-12 Columbus, OH kudos:1	It would seem likely that 10g means 10 gigabit, which is consistent with what we know of CRAN. The ATT hops are not CRAN. They are bandwidth purchased from ATT.net.
	to forum · permalink · 2006-08-04 20:36:07 ·
FlsRend Premium join:2004-01-31 Philadelphia, PA 1 edit	reply to voip_user Mine: C:\>tracert dslreports.com Tracing route to dslreports.com [209.123.109.175] over a maximum of 30 hops: 1 1 ms 1 ms 1 ms c-68-38-108-63.hsd1.pa.comcast.net [68.38.108.63] 2 * * * Request timed out. 3 52 ms 60 ms 21 ms ge-2-1-ur02.bensalem.pa.panjde.comcast.net [68.86.156.93] 4 45 ms 20 ms 35 ms po-10-ur01.torresdale.pa.panjde.comcast.net [68.86.208.81] 5 9 ms 46 ms 16 ms po-10-ur02.torresdale.pa.panjde.comcast.net [68.86.208.77] 6 26 ms 22 ms 11 ms po-10-ur01.kensington.pa.panjde.comcast.net [68.86.208.73] 7 13 ms 33 ms 70 ms po-10-ur01.wayneave.pa.panjde.comcast.net [68.86.208.69] 8 25 ms 17 ms 9 ms po-10-ur01.fairmountave.pa.panjde.comcast.net [68.86.208.65] 9 13 ms 19 ms 9 ms po-10-ur01.christianst.pa.panjde.comcast.net [68.86.208.61] 10 63 ms 23 ms 68 ms po-10-ur01.columbusblvd.pa.panjde.comcast.net [68.86.208.57] 11 35 ms 21 ms 9 ms po-10-ur01.greenwayave.pa.panjde.comcast.net [68.86.208.53] 12 23 ms 27 ms 50 ms po-20-ar01.wallingford.pa.panjde.comcast.net [68.86.208.49] 13 29 ms 14 ms 51 ms po90-ar01.401nbroadst.pa.panjde.comcast.net [68.86.208.29] 14 17 ms 29 ms 39 ms ge-3-0-cr01.torresdale.pa.core.comcast.net [68.86.211.14] 15 12 ms 24 ms 83 ms 12.118.114.5 16 18 ms 19 ms 32 ms tbr1-p012301.phlpa.ip.att.net [12.123.137.210] 17 17 ms 18 ms 17 ms tbr1-cl8.n54ny.ip.att.net [12.122.2.17] 18 41 ms 21 ms 24 ms gar1-p350.nwrnj.ip.att.net [12.123.0.153] 19 15 ms 18 ms 112 ms att-gige.esd1.nwr.nac.net [12.119.140.26] 20 15 ms 18 ms 16 ms 3.ge-3-0-0.gbr2.nwr.nac.net [209.123.11.189] 21 31 ms 20 ms 16 ms 0.so-0-3-0.gbr1.oct.nac.net [209.123.11.233] 22 90 ms 18 ms 65 ms www.dslreports.com [209.123.109.175] Trace complete. C:\> -- Like Metal? -- Shined!
	to forum · permalink · 2006-08-04 20:37:17 ·

US Cable Support > Comcast HSI > CRAN