I'm using a Comtrend AR-5831u DSL modem for my internet access. I've set it up 
as a bridge, so I have CeroWrt 3.10.50-1 configured to supply the PPP 
user/password. Everything's working fine. Almost.

The problem I'm seeing is that my DSL line is dropping on a regular basis. 
(several times per day, for ~60 seconds or so). I'm quite sure that this is a 
problem with my provider (Fairpoint), because both the CeroWrt and the DSL 
modem uptimes are over three weeks (as of our last power failure) while the 
"DSL uptime" is 1h 37m

I note that the DSL modem has an admin page that shows a number of stats, 
including ES, SES, and UAS (which I believe are stats for "errored seconds", 
"severely errored seconds", and "unavailable seconds") The two columns are 
labeled "Downstream" and "Upstream". These get bigger after the outages.



I can see these stats if I plug my laptop's ethernet directly into the DSL 
modem and connect to its address (I've set it to 192.168.253.1) I would like to 
be able to peek at these stats whenever I see an outage, or perhaps create an 
InterMapper probe that retrieves the current values on a regular basis. But I 
only have a single Ethernet between the DSL modem and CeroWrt.

My questions:

It occurs to me that it might be possible to create a VLAN that directs traffic 
to 192.168.253.0/24 out the ge00 interface so that I could see the DSL modem 
without making a direct connection/getting out of my chair :-) My networking 
configuration skills are pretty weak, so I'm asking the list for help:

- Is it possible to use a VLAN like this?

- Is it advisable to use a VLAN like this (the DSL modem is outside the 
firewall...)?

- What configuration file(s) need to be changed? (I'm using a fairly simple 
configuration - see the config-cerowrt.sh script at 
https://github.com/richb-hanover/CeroWrtScripts#config-cerowrtsh for my base 
setup.)

Many thanks!

Rich

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