Monitoring bandwidth behind a router
 

This is really interesting I have been asking to be able to do this for over a year. Had a run in on the phone the only time I can really say that the person on the other end was disrespectful to me.. I have been asking so now please can I have the access to monitor the SACM as requested in NTLs own link above.

I would if NTL didn't have the ip blocked so I can't set up MRTG!!!!!!

Come on you tell us to do it in one hand and stop us with the other..

Decision time NTL can we or can't we monitor our own usage of the service......

I was on about this on old .com and stil trying now... no more excuses either we can or we can't if C&W areas can't be allowed to monitor their traffic then remove the CAP!!!!

Re: 1GB Cap Letter!!!!
 

The IP is not blocked Kitty, but access to SNMP (which MRTG uses) is blocked on the CM. You can use other products apart from MRTG to monitor the bandwidth, such as DU Meter.

Re: 1GB Cap Letter!!!!
 

Only problem with that is if you have a router. DU meter looks at the ethernet card of the pc it is running on not the total through the modem.

Re: 1GB Cap Letter!!!!
 

The quote says its no use monitoring individual machines.. Du-meter cannot monitor the SACM only individual machines.

I have asked and still asking for a way to monitor the SACM which is the only way to monitor the complete downloads/uploads for all machines...

Just sent this to bandwidth@ntlworld.com lets see if I get a reply.

I am more than willing to test things out working with NTL to sort this out just until now its been more they are not interested. BBKing I know is trying to sort things out but after more than a year you start to give up.

Re: 1GB Cap Letter!!!!
 

I tried DU Meter, but found it wasn't acurate.

Plus, a breakdown of the results included e-mail activity, where when I switched off the 2 other pc's connected, and just looked at e-mail activity, it seemed quite high for just checking for mail, this added up over a 24 hour period eats in to the 1gig allowance, which I think is too low anyway, especially if you share the connection with 2 other housemates, 333.33r MB per person, per day hmmmmmmm

Re: 1GB Cap Letter!!!!
 

Blueyonder customers can use MRTG through the same router I have and I can prove it to all. Its NTL who are stoping us monitoring our usage......

Veiw this page and see just that MRTG working through a linksys router.

Re: 1GB Cap Letter!!!!
 

Have people with routers tried opening up port 161 for UDP traffic? This will allow SNMP through and you should be able to monitor your cable modem using MRTG. I am reliably informed that SNMP can be used to monitor traffic.

Re: 1GB Cap Letter!!!!
 

Fair enough. Seems ntl need to have a rethink about their policy in ex-C&W areas then, if customers with routers can't actually monitor their bandwidth :rofl:

Re: 1GB Cap Letter!!!!
 

Mr Bayliss had best hope BY don't ever cap, he's caning the connection a bit! :)

Sociable - in answer to your previous point it looks as though only very heavy users are being targetted, possibly in a particular area - I'll point you to the main 'cap' thread where the user who received a letter was, according to his friend, using 10GB a day, that's full download cap 24x7. The poster in that thread also using similar amount, I imagine that if all these are in the same area that area could well have a disproportionate amount of downstream usage compared to elsewhere in the country. Will have to see what comes to light. If it's really really heavy users changing times of usage aren't really an issue.

Kitty, what are the internal IPs you are using on your router? 192.what? Maybe 10.x ?

Re: 1GB Cap Letter!!!!
 

Since when? Are you sure? Other customers have MRTG working on SACMs, so I don't think SNMP is blocked.

Kitty, in another thread Ambit 200 in ex-C&W region: possible fix, you said:So what changed: you had MRTG working then, why not now?

Re: 1GB Cap Letter!!!!
 

Yes it is running but only logs when the router is not included. as soon as I place the router in MRTG adds nothing to the graph even though it updates it twice a day. It shows me using nothing eitherway.

Edited to add the link to MRTG on my website according to it I updated on the 18th Jan and havent used anything. take a look

Re: 1GB Cap Letter!!!!
 

Doesn't that suggest that it's the router that's the issue not the cable modem?

Re: 1GB Cap Letter!!!!
 

Maybe the router needs a port mapped for the snmp udp packets ?

If you runs a proper server you dont have these problems. !

Re: 1GB Cap Letter!!!!
 

I have a feeling the router doesn't like the idea of talking to the modem on 192.168.100.1, think Robin Walker has touched on this with his previous posts on the subject.

Regarding Richard M's points, fair comment, I didn't really pay that much attention to it but it does seem a bit strange both to use an http://homepages page, and the email address for 'contact us' is an @ntlworld.com one. Time will tell what the score is I guess, what's the postmark on the envelope, unless someone could fake ntl's franking machine that'd be quite a good bit of evidence, and where is the postmark from?

Re: 1GB Cap Letter!!!!
 

Nah more to do with UDP state tables on routers innit :p