o-dog
28-08-2004, 22:03
Hi, got 1MB connection through STB. Is awfull. Had it for 3 months and get continual packet loss for large amounts of time until i reset the box.
I will post what i have emailed to NTL support, will give an overview of the problem::mad: quote: For the past 3 months i have had an absolutly s*** service from NTL. I thought BT were bad.... NTL make BT look amazing. Quite an amazing feat in my eyes.
Internet will stop working, but lights still flashing on my network card which indicate traffic. SNR on box is 35dB to 43dB, return signal 24dBmv so seemingly nominal.
Run packet capture on the machine and it seems packets get through ok, indeed there are many ARP requests.... to the same ip which is indicative of denial of service attack. I belive they are proxy arp across networks from 81.111.249.1.
Packet dump is below:
No. Time Source Destination Protocol
Info
1891 83.374893 81.111.249.1 Broadcast ARP
Who has 80.5.236.137? Tell 80.5.236.1
1892 83.377394 81.111.249.1 Broadcast ARP
Who has 80.5.236.149? Tell 80.5.236.1
1893 83.380091 81.111.249.1 Broadcast ARP
Who has 80.5.236.139? Tell 80.5.236.1
1894 83.380119 81.111.249.1 Broadcast ARP
Who has 80.5.236.152? Tell 80.5.236.1
1895 83.383182 81.111.249.1 Broadcast ARP
Who has 80.5.236.153? Tell 80.5.236.1
1896 83.386712 81.111.249.1 Broadcast ARP
Who has 80.5.236.143? Tell 80.5.236.1
1897 83.386767 81.111.249.1 Broadcast ARP
Who has 80.5.236.147? Tell 80.5.236.1
1898 83.388279 81.111.249.1 Broadcast ARP
Who has 80.5.236.144? Tell 80.5.236.1
1899 83.394815 81.111.249.1 Broadcast ARP
Who has 80.5.236.161? Tell 80.5.236.1
1900 83.400682 81.111.249.1 Broadcast ARP
Who has 80.5.236.166? Tell 80.5.236.1
1901 83.401307 81.111.249.1 Broadcast ARP
Who has 80.5.236.156? Tell 80.5.236.1
1902 83.403342 81.111.249.1 Broadcast ARP
Who has 80.5.236.159? Tell 80.5.236.1
1903 83.403424 81.111.249.1 Broadcast ARP
Who has 80.5.236.158? Tell 80.5.236.1
1904 83.415282 81.111.249.1 Broadcast ARP
Who has 80.5.236.165? Tell 80.5.236.1
1905 83.420367 81.111.249.1 Broadcast ARP
Who has 80.5.236.140? Tell 80.5.236.1
1906 83.428774 81.111.249.1 Broadcast ARP
Who has 80.5.236.168? Tell 80.5.236.1
1907 83.434265 81.111.249.1 Broadcast ARP
Who has 80.5.236.169? Tell 80.5.236.1
1908 83.436931 81.111.249.1 Broadcast ARP
Who has 80.5.236.171? Tell 80.5.236.1
1909 83.447573 81.111.249.1 Broadcast ARP
Who has 80.5.236.170? Tell 80.5.236.1
1910 83.472817 81.111.249.1 Broadcast ARP
Who has 80.5.236.180? Tell 80.5.236.1
1911 83.476572 81.111.249.1 Broadcast ARP
Who has 80.5.236.182? Tell 80.5.236.1
1912 83.478823 81.111.249.1 Broadcast ARP
Who has 80.5.236.184? Tell 80.5.236.1
1913 83.478847 81.111.249.1 Broadcast ARP
Who has 81.96.228.157? Tell 81.96.228.254
1914 83.480888 81.111.249.1 Broadcast ARP
Who has 80.5.236.179? Tell 80.5.236.1
1915 83.486561 81.111.249.1 Broadcast ARP
Who has 80.5.236.189? Tell 80.5.236.1
1916 83.486588 81.111.249.1 Broadcast ARP
Who has 80.5.236.188? Tell 80.5.236.1
1917 83.487180 81.111.249.1 Broadcast ARP
Who has 80.5.236.178? Tell 80.5.236.1
1918 83.488394 81.111.249.1 Broadcast ARP
Who has 80.5.236.191? Tell 80.5.236.1
1919 83.488980 81.111.249.1 Broadcast ARP
Who has 80.5.236.185? Tell 80.5.236.1
1920 83.491176 81.111.249.1 Broadcast ARP
Who has 80.5.236.186? Tell 80.5.236.1
1921 83.492702 81.111.249.1 Broadcast ARP
Who has 80.5.236.183? Tell 80.5.236.1
1922 83.503502 81.111.249.1 Broadcast ARP
Who has 80.5.236.192? Tell 80.5.236.1
1923 83.503973 81.111.249.1 Broadcast ARP
Who has 80.5.236.190? Tell 80.5.236.1
1924 83.505187 81.111.249.1 Broadcast ARP
Who has 80.5.236.193? Tell 80.5.236.1
1925 83.510467 81.111.249.1 Broadcast ARP
Who has 80.5.236.196? Tell 80.5.236.1
1926 83.522486 81.111.249.1 Broadcast ARP
Who has 80.5.236.199? Tell 80.5.236.1
1927 83.537199 81.111.249.1 Broadcast ARP
Who has 80.5.236.201? Tell 80.5.236.1
1928 83.552861 81.111.249.1 Broadcast ARP
Who has 81.100.102.97? Tell 81.100.102.1
1929 83.560488 81.111.249.1 Broadcast ARP
Who has 80.5.243.233? Tell 80.5.243.1
1930 83.575841 81.111.249.1 Broadcast ARP
Who has 80.5.236.204? Tell 80.5.236.1
hostname of 80.5.236.1 is spr1-pool3-3-0-gw.cosh.broadband.ntl.com
Rang technical support around 7 times, had 2 STBs now, still same
symptons. Obviously signal to box is ok (TV is fine), and is a network malconfiguration. Surely you should be sensing rouge packets and stoping them?
I will give 5 working days for this to be resolved before i withdraw
payment for this joke of a service. Problems happen sure, and i understand that, however 3 f****** months is just a plain joke. I will be ringing technical support helpline tonight with words to these effect. NTL make BT look amazing, shame i am out of ADSL range Download Failed (1)
One thing i forgot to mention is if i unplug the STB and plug it back in then the service works again no problems... for anywhere between 5-30mins before stopping.
The last excuse was that some of the cabinets in my area (Bournemouth) have been vandalised. Thing is i do know a little bit about networks yet im getting fobbed off with this BS. if they were honest about stuff i would try to understand... trouble is they treat everyone as stupid. GRRRRRRRRRRRRRR
Will do a trace route when it screws up again... which will probably be in 2 minutes. actually just had to reboot the box whilst writing this. NTL... jeez.
Is there anyone i can take this up with incase i get trouble with refunds? ie ofcom etc?
Any advice much appreciated.
Cheers,
Chris
I will post what i have emailed to NTL support, will give an overview of the problem::mad: quote: For the past 3 months i have had an absolutly s*** service from NTL. I thought BT were bad.... NTL make BT look amazing. Quite an amazing feat in my eyes.
Internet will stop working, but lights still flashing on my network card which indicate traffic. SNR on box is 35dB to 43dB, return signal 24dBmv so seemingly nominal.
Run packet capture on the machine and it seems packets get through ok, indeed there are many ARP requests.... to the same ip which is indicative of denial of service attack. I belive they are proxy arp across networks from 81.111.249.1.
Packet dump is below:
No. Time Source Destination Protocol
Info
1891 83.374893 81.111.249.1 Broadcast ARP
Who has 80.5.236.137? Tell 80.5.236.1
1892 83.377394 81.111.249.1 Broadcast ARP
Who has 80.5.236.149? Tell 80.5.236.1
1893 83.380091 81.111.249.1 Broadcast ARP
Who has 80.5.236.139? Tell 80.5.236.1
1894 83.380119 81.111.249.1 Broadcast ARP
Who has 80.5.236.152? Tell 80.5.236.1
1895 83.383182 81.111.249.1 Broadcast ARP
Who has 80.5.236.153? Tell 80.5.236.1
1896 83.386712 81.111.249.1 Broadcast ARP
Who has 80.5.236.143? Tell 80.5.236.1
1897 83.386767 81.111.249.1 Broadcast ARP
Who has 80.5.236.147? Tell 80.5.236.1
1898 83.388279 81.111.249.1 Broadcast ARP
Who has 80.5.236.144? Tell 80.5.236.1
1899 83.394815 81.111.249.1 Broadcast ARP
Who has 80.5.236.161? Tell 80.5.236.1
1900 83.400682 81.111.249.1 Broadcast ARP
Who has 80.5.236.166? Tell 80.5.236.1
1901 83.401307 81.111.249.1 Broadcast ARP
Who has 80.5.236.156? Tell 80.5.236.1
1902 83.403342 81.111.249.1 Broadcast ARP
Who has 80.5.236.159? Tell 80.5.236.1
1903 83.403424 81.111.249.1 Broadcast ARP
Who has 80.5.236.158? Tell 80.5.236.1
1904 83.415282 81.111.249.1 Broadcast ARP
Who has 80.5.236.165? Tell 80.5.236.1
1905 83.420367 81.111.249.1 Broadcast ARP
Who has 80.5.236.140? Tell 80.5.236.1
1906 83.428774 81.111.249.1 Broadcast ARP
Who has 80.5.236.168? Tell 80.5.236.1
1907 83.434265 81.111.249.1 Broadcast ARP
Who has 80.5.236.169? Tell 80.5.236.1
1908 83.436931 81.111.249.1 Broadcast ARP
Who has 80.5.236.171? Tell 80.5.236.1
1909 83.447573 81.111.249.1 Broadcast ARP
Who has 80.5.236.170? Tell 80.5.236.1
1910 83.472817 81.111.249.1 Broadcast ARP
Who has 80.5.236.180? Tell 80.5.236.1
1911 83.476572 81.111.249.1 Broadcast ARP
Who has 80.5.236.182? Tell 80.5.236.1
1912 83.478823 81.111.249.1 Broadcast ARP
Who has 80.5.236.184? Tell 80.5.236.1
1913 83.478847 81.111.249.1 Broadcast ARP
Who has 81.96.228.157? Tell 81.96.228.254
1914 83.480888 81.111.249.1 Broadcast ARP
Who has 80.5.236.179? Tell 80.5.236.1
1915 83.486561 81.111.249.1 Broadcast ARP
Who has 80.5.236.189? Tell 80.5.236.1
1916 83.486588 81.111.249.1 Broadcast ARP
Who has 80.5.236.188? Tell 80.5.236.1
1917 83.487180 81.111.249.1 Broadcast ARP
Who has 80.5.236.178? Tell 80.5.236.1
1918 83.488394 81.111.249.1 Broadcast ARP
Who has 80.5.236.191? Tell 80.5.236.1
1919 83.488980 81.111.249.1 Broadcast ARP
Who has 80.5.236.185? Tell 80.5.236.1
1920 83.491176 81.111.249.1 Broadcast ARP
Who has 80.5.236.186? Tell 80.5.236.1
1921 83.492702 81.111.249.1 Broadcast ARP
Who has 80.5.236.183? Tell 80.5.236.1
1922 83.503502 81.111.249.1 Broadcast ARP
Who has 80.5.236.192? Tell 80.5.236.1
1923 83.503973 81.111.249.1 Broadcast ARP
Who has 80.5.236.190? Tell 80.5.236.1
1924 83.505187 81.111.249.1 Broadcast ARP
Who has 80.5.236.193? Tell 80.5.236.1
1925 83.510467 81.111.249.1 Broadcast ARP
Who has 80.5.236.196? Tell 80.5.236.1
1926 83.522486 81.111.249.1 Broadcast ARP
Who has 80.5.236.199? Tell 80.5.236.1
1927 83.537199 81.111.249.1 Broadcast ARP
Who has 80.5.236.201? Tell 80.5.236.1
1928 83.552861 81.111.249.1 Broadcast ARP
Who has 81.100.102.97? Tell 81.100.102.1
1929 83.560488 81.111.249.1 Broadcast ARP
Who has 80.5.243.233? Tell 80.5.243.1
1930 83.575841 81.111.249.1 Broadcast ARP
Who has 80.5.236.204? Tell 80.5.236.1
hostname of 80.5.236.1 is spr1-pool3-3-0-gw.cosh.broadband.ntl.com
Rang technical support around 7 times, had 2 STBs now, still same
symptons. Obviously signal to box is ok (TV is fine), and is a network malconfiguration. Surely you should be sensing rouge packets and stoping them?
I will give 5 working days for this to be resolved before i withdraw
payment for this joke of a service. Problems happen sure, and i understand that, however 3 f****** months is just a plain joke. I will be ringing technical support helpline tonight with words to these effect. NTL make BT look amazing, shame i am out of ADSL range Download Failed (1)
One thing i forgot to mention is if i unplug the STB and plug it back in then the service works again no problems... for anywhere between 5-30mins before stopping.
The last excuse was that some of the cabinets in my area (Bournemouth) have been vandalised. Thing is i do know a little bit about networks yet im getting fobbed off with this BS. if they were honest about stuff i would try to understand... trouble is they treat everyone as stupid. GRRRRRRRRRRRRRR
Will do a trace route when it screws up again... which will probably be in 2 minutes. actually just had to reboot the box whilst writing this. NTL... jeez.
Is there anyone i can take this up with incase i get trouble with refunds? ie ofcom etc?
Any advice much appreciated.
Cheers,
Chris