Traceroute to ubuntuforums never finishes

[Carl Friis-Hansen]

gasell wrote:
>> Not really sure, after all you came pretty far. It would be more helpful
>> to see the times all the way from start.
>> Here is my trace:
>> //////////////////////////////////
>> carl at cfriisha:~$ sudo lft -D wlan0 feijoa.canonical.com
>>
>> Tracing ____________?_________?_______?_________?___.
>>
>> TTL  LFT trace to feijoa.canonical.com (91.189.94.12):80/tcp
>>  1   192.168.0.1 22.7ms
>>  2   217.197.58.33 126.6ms
>>  3   217.197.56.1 92.5ms
>> **   [neglected] no reply packets received from TTL 4
>>  5   te-X-Y.car2.copenhagen1.level3.net (4.68.111.17) 36.0/*/*ms
>> **   [neglected] no reply packets received from TTL 6
>>  7   ae-1-0.bbr1.London2.Level3.net (212.187.128.46) 69.2/*/*ms
>> **   [neglected] no reply packets received from TTLs 8 through 9
>> 10   gw0-0-gr.canonical.com (91.189.88.10) 65.8/*ms
>> **   [neglected] no reply packets received from TTLs 11 through 12
>> 13   [target] feijoa.canonical.com (91.189.94.12):80 73.1/*ms
>>
>> carl at cfriisha:~$
>> //////////////////////////////////
>>
>> This is a trace from Sweden.
>>
>> --
>>                           ---------=oOOo=---------
>>                             Carl Friis-Hansen
>>                             http://carl-fh.com/
>>                             Phone: +46 372 15033
>>                           ---------=oOOo=---------
> 
> Hm, using traceroute, it fails, but with lft it doesn't. Care to
> explain the difference?
> 
> Then it might not be a networking issue at all. Yesterday I couldn't
> log in both with Firefox and Opera, today only Firefox refuses to
> work. Haven't had any strange issues with Firefox before :S.

The lft utility attempts to diagnose the route with the protocol of your 
choice. By default it uses port 80 (web). My totally wild guess is that 
you have a bottleneck somewhere in Estonia and that this bottleneck 
makes diagnose further down  the line somewhat difficult. I would see if 
the problem is the same for servers at other geographical locations. 
Your description points to overloaded routers between you and the first 
trunc line on the route. This overload is often caused by pear-pear 
applications in your area. If this is the case you will also have 
erratic connections to relative local web sites.

-- 
       +---------------------------------+-------------------+
       | Carl Friis-Hansen               | Fiskeryd Nybygget |
       | http://computingconfidence.com/ | 341 91  Ljungby   |
       | Phone: +46 (0)372 15033         | Sweden            |
       +---------------------------------+-------------------+