Re: Weird problem, only one port, 80, is blocked.
- From: ibuprofin@xxxxxxxxxxxxxxxxxxxxxx (Moe Trin)
- Date: Mon, 29 Sep 2008 15:03:39 -0500
On Mon, 29 Sep 2008, in the Usenet newsgroup comp.os.linux.networking, in
article <ctf1e49ihi052o2uq29rjstjrsoltbf7i8@xxxxxxx>, Grant wrote:
This started last Friday, incoming ADSL traffic on port 80 stopped.
So I contact the ISP and they say there's no block, after some days
today we find they can get to my port 80 only from the same CIDR
block (123.2.0.0/15).
What could cause this? The ISP are clueless.
Tracing to your posting address port 80, I loose it in Melbourne:
12 tengigabitethernet8-1.lon55.melbourne.telstra.net (203.50.80.65)
319.114 ms 309.174 ms 309.141 ms
13 dodoau7.lnk.telstra.net (139.130.205.18) 309.124 ms 309.282 ms
309.554 ms
14 * * *
15 * * *
16 * * *
while a trace to the same address port 8080 continues
14 dodomel-lns002-ge3-4-2.core.dodo.com.au (123.2.0.43) 319.122 ms
319.140 ms 319.545 ms
15 123-2-77-8.static.dsl.dodo.com.au (123.2.77.8) [open] 348.964 ms
339.390 ms 339.297 ms
Obviously dodoau7.lnk.telstra.net or dodomel-lns002-ge3-4-2.core.dodo.com.au
is dropping port 80 inbound. Does your contract with Dodo Oz Pty say
that you are to have such access? If so, raise hell with them.
Old guy
.
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