Christopher, Have you checked for a "trasparent proxy cache" being used?
What does http://www.lagado.com/proxy-test say? 2008/11/3 Christopher Woods <[EMAIL PROTECTED]> > Yes, Yahoo. I'm not going mad (at least, not yet... Or not completely mad). > > I've tried figuring this one out myself but to no avail. > > I sometimes spy on what the programs on my machine are doing network wise, > and I noticed a while back that iPlayer streaming connections were > beginning > to come and go from different IPblocks. I thought nothing more of it at the > time, just made a mental note of it. I began to notice this around the time > of the LHC switch on day, and the week afterwards - that's when the > addressed IPs began to appear to transition to different ones. > > However, the other week, I was listening to some BBC7 shows and noticed it > again - the content was coming from a noticeably different netblock. > > > Being the geek I am, I did some tracerouting. Here's the results of two > traces. The first IP is one which I'd seen associated with iPlayer stuff > for > a fair while, so assumed that Akamai were being used directly by the BBC to > cache-and-forward content more efficiently to ISPs like mine. > > D:\Documents and Settings\Christopher>tracert 92.122.210.183 > > Tracing route to a92-122-210-183.deploy.akamaitechnologies.com > [92.122.210.183] over a maximum of 30 hops: > > 1 1 ms 2 ms 3 ms brum2-router0 [192.168.1.1] > 2 * * * Request timed out. > 3 27 ms 32 ms 30 ms 213.161.72.69 > 4 56 ms 21 ms 27 ms so-0-0-0.mpr1.lhr2.uk.above.net > [64.125.27.225] > 5 40 ms 56 ms 57 ms ge-4-0-0-1303-dcr2.tsd.cw.net > [166.63.218.193] > 6 65 ms 20 ms 20 ms xe-4-2-0.xcr1.lnd.cw.net [195.2.25.58] > 7 * 21 ms 22 ms akamai-gw4.ldt.cw.net [195.2.15.134] > 8 20 ms 21 ms 21 ms > a92-122-210-183.deploy.akamaitechnologies.com [92.122.210.183] > > Trace complete. > > D:\Documents and Settings\Christopher>tracert 213.155.157.140 > > Tracing route to UNKNOWN-213-155-157-140.yahoo.com [213.155.157.140] over > a > maximum of 30 hops: > > 1 <1 ms <1 ms <1 ms brum2-router0 [192.168.1.1] > 2 * * * Request timed out. > 3 * 75 ms 20 ms 213.161.72.69 > 4 60 ms 72 ms 34 ms ldn-b3-link.telia.net [213.248.101.105] > 5 22 ms 48 ms 21 ms UNKNOWN-213-155-157-140.yahoo.com > [213.155.157.140] > > Trace complete. > > > > Both of these IPs have served me iPlayer content through the streaming > interface direct from the /iPlayer site. How come more and more of the > stuff > I stream (radio and TV, but I've been Listening Again a fair bit in the > past > couple of weeks) seems to be coming from these non-BBC netblocks? Both of > those traces are from my Be* connection (first hop is the gateway, ICMP > responses are QOSed to lowest priority) but I've seen this strange > behaviour > when streaming over my parents' Zen DSL connection too. These IPs are > *definitely* iPlayer streaming servers; I've confirmed, double- and > triple-checked with Wireshark and various other tools which let me see in > realtime what's connecting to where and when (which is nothing very > complicated these days!) > > > What really got me was the second IP resolving to *.Yahoo.com hostname... > /Why Yahoo?/ I don't see the link at all. Can someone with a clue help me > out here please? > > - > Sent via the backstage.bbc.co.uk discussion group. To unsubscribe, please > visit http://backstage.bbc.co.uk/archives/2005/01/mailing_list.html. > Unofficial list archive: > http://www.mail-archive.com/[email protected]/ > -- Brian Butterworth follow me on twitter: http://twitter.com/briantist web: http://www.ukfree.tv - independent digital television and switchover advice, since 2002
