Re: Re: [OT]ish Router +modem problem

[Geoff Hargreaves <geoffwhargreaves@xxxxxxxxxxxxxx>]

I have a similar setup, except instead of 3g it's an ADSL modem. The
only thing I have done that is different is to use a static IP address
for the router WAN and also specify the ISP DNS servers in the router
instead of pointing to the modem. I also don't use DynDns in the router
but instead run it on a PC connected to the LAN.

Geoff

On 29/08/2011 16:41, Peter Church wrote:
> Yes, my thinking exactly!
>
>
>
> I might try changing the DNS on the router side to default to the
modem
> 192.168.2.101 rather than the router to see if it can divert the
traffic
> directly to the modem (which works when the modem is the DHCP/default
> gateway)
>
>
>
> Any other thoughts?
>
>
>
> Thanks
>
>
> Pete
>
>
>
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
> Nick Austin
> Sent: 29 August 2011 15:33
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] Re: [OT]ish Router +modem problem
>
>
>
>
>
> Hi Peter,
>
> The timeout (asterisks) is probably an ISP-owned router configured not
> to reply ICMPs. As long as you are getting replies from routers
> further down the chain it isn't a problem.
>
> Also the 90ms+ round trips are typical for 3G broadband so further
> confirmation that ICMPs are being sent and received over the Internet.
>
> So as I see it a summary so far:
> DHCP is working
> DNS is working
> DNS RELAY is working
> TRACERT is working.
>
> So really I can't see any reason for it not working at all.
>
> Nick.
>
> On Sun, Aug 28, 2011 at 7:28 PM, Peter Church<yahoo@xxxxxxx
> <mailto:yahoo%40petechurch.co.uk>
 >  wrote:
>> Nick,
>>
>>
>>
>> Yes the numbers changed slightly as I switched the 3rd digit of
the
> subnet,
>> but the problem remains the same.
>>
>>
>>
>> Here are the results of the Trace Routes:
>>
>>
>>
>>> tracert -h 4 192.168.1.1
>>
>>
>> Tracing route to 192.168.1.1 over a maximum of 4 hops
>>
>>   1<1 ms<1 ms<1 ms  192.168.1.1
>>
>> Trace complete.
>>
>>
>>
>>> tracert -h 4 192.168.2.101
>> Tracing route to e.home [192.168.2.101] over a maximum of 4 hops:
>>
>>   1<1 ms<1 ms<1 ms  192.168.1.1
>>
>>   2     2 ms     2 ms     2 ms  e.home [192.168.2.101]
>>
>> Trace complete.
>>
>>
>>
>>> tracert -h 4 212.58.246.94
>> Tracing route to bbc-vip015.cwwtf.bbc.co.uk [212.58.246.94] over a
maximum
>> of 4 hops:
>>
>>   1<1 ms<1 ms<1 ms  192.168.1.1
>>
>>   2     2 ms     1 ms     1 ms  e.home [192.168.2.101]
>>
>>   3     *        *        *     Request timed out.
>>
>>   4    87 ms    88 ms    99 ms  193.120.29.125
>>
>> Trace complete.
>>
>>
>>
>> I also checked this over more hops and it does get there in 13
hops.  It
> is
>> interesting that the domain name is listed which means DNS is
working, but
> I
>> guess it is that 3rd hop that is causing the problem.  Any idea
what that
>> means?
>>
>>
>>
>> I disabled DNS on the modem and gave the router a fixed IP address
and the
>> ISP supplied DNS IPs and the same result occurs.
>>
>>
>>
>> Out of interest I ran a trace route with the Modem acting as the
DHCP
> (when
>> I can get the internet to work) and received this result:
>>
>>
>>
>>   1<1 ms<1 ms<1 ms  e.home [192.168.2.101]
>>
>>   2     *        *        *     Request timed out.
>>
>>   3    98 ms    99 ms    99 ms  217.112.145.125.gvnx.com
[217.112.145.125]
>>
>>   4   127 ms   139 ms   138 ms  xe1-2-0-10.tcr1.thn.lon.as8218.eu
>> [213.152.31.16
>>
>>
>>
>> So it looks like that Time Out is consistent, but not a killer! 
Perhaps
>> interesting that the next hop IP is in a different range to the
others?
>>
>>
>>
>>
>>
>> The current status of the modem is:
>>
>> DHCP - Off - fixed IP address
>>
>> Firewall - Off
>>
>> DMZ - Disabled
>>
>> Virtual Servers (port routings) - None
>>
>> UPnP - Enabled
>>
>>
>>
>> Any thoughts?
>>
>>
>> Thanks for your time reading this!
>>
>>
>>
>> Cheers
>>
>>
>>
>> Pete
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
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>
>
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