Simple Trick to check I-Burst....

Crash

Senior Member
Joined
Nov 15, 2004
Messages
942
Of late I have found a pretty easy way to tell if my lack of internet connection is due to to I-Burst or UUNET SA or UUNET US etc.

Simply run a tracert

For example to check your International connectivity tracert to say google.com

1 76 ms 102 ms 168 ms 196.30.31.100
2 67 ms 99 ms 91 ms 196.30.31.193
3 78 ms 87 ms 92 ms fe6-1.gw10.jnb6.alter.net [196.30.31.254]
4 68 ms 87 ms 87 ms fe4-1-0.cr2.jnb6.alter.net [196.30.156.34]
5 447 ms 279 ms 280 ms atm1-1-0sub902.ir2.mia16.alter.net [196.30.229.209]
6 299 ms 320 ms 321 ms POS0-1-0.IH4.MIA4.ALTER.NET [152.63.86.145]
7 301 ms 386 ms 289 ms 302.at-6-1-0.XR2.MIA4.ALTER.NET [152.63.7.226]
8 304 ms 378 ms 280 ms 0.so-4-2-0.XL2.MIA4.ALTER.NET [152.63.101.46]
9 319 ms 293 ms 295 ms 0.so-4-2-0.XL2.ATL5.ALTER.NET [152.63.81.81]
10 323 ms 340 ms 400 ms 0.so-7-0-0.BR3.ATL5.ALTER.NET [152.63.87.93]
11 397 ms 298 ms 347 ms so-1-1-0.gar2.Atlanta1.Level3.net [4.68.127.177]
12 352 ms 343 ms 425 ms so-0-3-0.bbr2.Atlanta1.Level3.net [4.68.96.17]
13 324 ms 299 ms 301 ms ge-10-2.hsa1.Atlanta1.Level3.net [64.159.3.70]
14 318 ms 338 ms 342 ms unknown.Level3.net [63.211.121.30]

If you get a * meaning a timeout, then you know who to blame.

Step 1 and 2 = I-Burst Towers. I believe these are Roodepoort and Sandton.
Step 3 to 5 = UUNET SA.
Step 5 to 10 = UUNET US
Step 10 to 14 = Google

Can't connect it's I-Burst.
If step 1 or 2 timeout then it's IBurst.
If step 3 to 5 timeout then it's UUNET SA. And so on.

Similarly if you tracert to a local site, you can make a rough guess as to whether it's Telkom, UUNET SA and so on.

Just pointing it out. Don't know if it's useful.
 

ic

MyBroadband
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Nov 8, 2004
Messages
14,709
Crash said:
...
1 76 ms 102 ms 168 ms 196.30.31.100
2 67 ms 99 ms 91 ms 196.30.31.193
...
Step 1 and 2 = I-Burst Towers. I believe these are Roodepoort and Sandton.
...
If step 1 or 2 timeout then it's IBurst.
...
I don't believe the towers have traceable IP addresses - at least not that we have access to. BTW, everyone should have 196.30.31.100 as the first IP host their traffic flows through - prolly a router with DHCP Server enabled.
 

DFantom

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May 20, 2004
Messages
1,498
Crash said:
Step 1 and 2 = I-Burst Towers. I believe these are Roodepoort and Sandton.
Step 3 to 5 = UUNET SA.
Step 5 to 10 = UUNET US
Step 10 to 14 = Google
You are just slightly off in your information here:
Step 1,2 and 3 are iBurst (can't tell if towers or not. Only way to do that is use a different tower and redo the traceroute. If you get different IP's then it is the towers, if not it's gateways. At most though I would guess only the first one might be a tower. The second would definately be a network router)
Step 4 is UUNet SA link to iBurst
Step 5 is UUNet SA link to USA
Step 6 to 9 is UUNet USA
Step 10 to 14 is Level3.net who provide the network Google uses. (Google does not have it's own network, but from the latest dark fiber information that might change)
 

Raithlin

Executive Member
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Jan 4, 2005
Messages
5,013
DFantom said:
Step 1,2 and 3 are iBurst (can't tell if towers or not. Only way to do that is use a different tower and redo the traceroute. If you get different IP's then it is the towers, if not it's gateways. At most though I would guess only the first one might be a tower. The second would definately be a network router)
Running from the Midrand tower, first two IPs are the same: 100 and 193.
 

Jerry

Well-Known Member
Joined
Jan 17, 2005
Messages
193
I did a trace route on google. This is what I got:

Traceroute has started ...

traceroute to www.google.akadns.net (64.233.187.99), 30 hops max, 40 byte packets
1 * 196.30.31.100 (196.30.31.100) 361.375 ms 1100.48 ms
2 196.30.31.193 (196.30.31.193) 671.01 ms 438.563 ms 301.357 ms
3 fe6-1.gw10.jnb6.alter.net (196.30.31.254) 234.907 ms 301.089 ms 303.789 ms
4 fe4-1-0.cr2.jnb6.alter.net (196.30.156.34) 254.037 ms 660.154 ms 353.365 ms
5 atm8-0-0sub100.ir2.mia16.alter.net (196.30.229.170) 1057.01 ms 922.552 ms 758.132 ms
6 pos0-1-0.ih4.mia4.alter.net (152.63.86.145) 704.988 ms 1231.62 ms 1630.76 ms
7 202.at-5-1-0.xr2.mia4.alter.net (152.63.7.130) 2805.61 ms 648.558 ms 898.759 ms
8 0.so-4-2-0.xl2.mia4.alter.net (152.63.101.46) 534.669 ms 994.332 ms 912.846 ms
9 0.so-4-2-0.xl2.atl5.alter.net (152.63.81.81) 1202.71 ms 980.396 ms 773.174 ms
10 0.so-7-0-0.br3.atl5.alter.net (152.63.87.93) 1147.55 ms 882.339 ms 4127.97 ms
11 so-1-1-0.gar2.atlanta1.level3.net (4.68.127.177) 1097.63 ms 924.804 ms 544.187 ms
12 so-3-3-0.bbr1.atlanta1.level3.net (4.68.96.13) 443.713 ms so-0-3-0.bbr2.atlanta1.level3.net (4.68.96.17) 723.91 ms so-3-3-0.bbr1.atlanta1.level3.net (4.68.96.13) 919.501 ms
13 ge-11-1.hsa1.atlanta1.level3.net (64.159.3.18) 626.789 ms ge-11-2.hsa1.atlanta1.level3.net (64.159.3.78) 1581.24 ms ge-11-0.hsa1.atlanta1.level3.net (64.159.3.6) 679.338 ms
14 unknown.level3.net (63.211.121.30) 748.71 ms 1017.85 ms 1005.84 ms
15 216.239.46.170 (216.239.46.170) 1491.01 ms 710.07 ms 831.51 ms
16 216.239.46.61 (216.239.46.61) 1294.75 ms 999.16 ms 2337.64 ms
17 216.239.49.82 (216.239.49.82) 1769.84 ms 1154.83 ms 674.79 ms
18 * * *
19 * * *
20 * * *
21 * * *
22 * * *
23 * * *
24 * * *
25 * * *
26 * * *
27 * * *
28 * * *
29 * * *
30 * * *

Now what does the "*" mean in line one, and then lines 18 to 30?
 

guest2013-1

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Aug 22, 2003
Messages
19,808
Just a quick lesson on how their towers work :

You connect to a tower, you get authenticated, you then get tunnelled through to their servers, and from there you access the internet.

Short and sweet and probably missing some points.

But the first 2 IP addresses are probably routers on WBS's side and not actually the towers.

Then again, WBS could be working slightly different than Sentech.
 

Crash

Senior Member
Joined
Nov 15, 2004
Messages
942
At point 18 onwards you probably hit a firewall, which blocked ICMP packets...

When I spoke to the guys at I-Burst I'm sure they said all the towers connect to a more central tower (Sandton I think?). Obviously if all the traceroutes return the same Ip's then IP is not assigned to the towers.... my bad.
 

ghostim

Expert Member
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Dec 27, 2004
Messages
1,816
Urm i'm not a network specialist, but me tinks the towers/cells work in a kinda bridged mode which make them sorta invinsible to tcp/ip. Pinging 196.30.31.100 give an indication how long its takes to that router/gateway whatever. The authentication can't be decentralised. That's gonna be an adminstrative nitemare and not logical
 

guest2013-1

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Joined
Aug 22, 2003
Messages
19,808
you're right ghostim, imagine how a VPN works, you tunnel through to your company's network via your internet line, and then go through their internet line (uncapped ADSL works like that currently in some cases)

Now, when you connect to the tower, you get authenticated, and put in a tunnel, which then gets routed via the central server (with the nice phat internet) and that is how requests gets sent through and back to you.

You won't ever see a tower...
 
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