Re: Using Wireshark for a DSL "link no surf" problem

[Kok-Yong Tan <ktan () realityartisans com>]

No, the DSL modem is bridging, not routing.  I've been assigned two static IPs (although they've given me a /24 net 
mask!!!) and my firewall is assigned one of them.  The firewall is connected directly to the DSL modem by Cat6 patch 
cable.  The other IP is unused (I use it for testing VPN configurations).

I'm not sure but since the Broadxent Briteport is a PPPoE modem, I assume PPPoE.  But the tech says that's not correct 
(WTF?).  And he can't explain what they use.  Sigh.
-- 
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On Jun 17, 2014, at 22:13 , Pedro Tumusok <pedro.tumusok () gmail com> wrote:

> Well if the tech can see stuff, its not what I thought might be the problem, which was PVC settings.
>
> But does your modem get an IP address, ie is it setup as a router or does your computer get the ip address?
> Are you using PPPoA/PPPoE etc?
>
>
> On Wed, Jun 18, 2014 at 5:52 AM, Frank Bulk <frnkblk () iname com> wrote:
> Some Comtrend modems can do a port mirror of the WAN (DSL) side.
>
> Frank
>
> -----Original Message-----
> From: wireshark-users-bounces () wireshark org
> [mailto:wireshark-users-bounces () wireshark org] On Behalf Of Kok-Yong Tan
> Sent: Tuesday, June 17, 2014 4:53 PM
> To: Community support list for Wireshark
> Subject: Re: [Wireshark-users] Using Wireshark for a DSL "link no surf"
> problem
>
>
> > On Jun 17, 2014, at 14:28, Jaap Keuter <jaap.keuter () xs4all nl> wrote:
> >
> > > On 06/17/2014 08:42 PM, Kok-Yong Tan wrote:
> > > Is it possible to use Wireshark to troubleshoot a DSL "link no surf"
> problem?  The ISP insists it's a CPE issue but the problem only started
> after their Tier 1 tech monkeyed with the DSLAM and/or the CPE (remotely) in
> some manner.  I find it suspicious that the problem was intermittent packet
> loss until they tinkered, whereupon the problem became a "link no surf"
> issue (i.e., there's Layer 2 connectivity but zero Layer 3 traffic passing).
> > Depends on what you can trace in the CPE, as in, how close to the DSL
> interface.
> > Otherwise you'll need capture hardware on the DSL....
> >
> > Good luck,
> > Jaap
>
> I can get up to the DSL modem itself.  In hindsight, I'm thinking this isn't
> going to be of much use and the only way to debug this is with capture
> hardware on the DSL side as you suggested.  Drat.
> --
> Sent from my iPad2 with greater chance of typographical, grammatical and
> other disasters.  Your indulgence is even more humbly requested.
>
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>
>
> -- 
> Best regards / Mvh
> Jan Pedro Tumusok
>
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