Update and problem re-defined - - -

There are many web and YouTube references on how to re-purpose an old 
modem/router as an ethernet switch.  Works like a charm with an old Belkin adsl 
modem/router, a real 5 minute job.  I can also access the modem setup webpage 
at its new IP address.  So the process works with a basic modem.

However the desired outcome is to modify a Bob Lite modem to provide three 
extra ethernet ports and retain the in-built voip function which now uses the 
fourth port.

However I can not get the Bob Lite modem/router to work properly after 
modifications.  I can disable DHCP, wireless and firewall and even change the 
IP address to a spare number in the IP address pool of the new router.  The 
Netphone works in whatever mode I set up in Bob Lite.  But the ethernet ports 
will not support computers and I cannot access the modem setup webpage at 
either the old or new IP address after making the minimal changes of disabling 
DHCP, wireless and firewall.

I can find no references as to why a voip enabled modem can not be converted to 
an ethernet switch.  It would seem to be either an iiNet Labs design limitation 
or a voip conflict.

Any ideas?

Cheers
Alan


> On 25 May 2018, at 9:46 pm, Alan Smith <[email protected]> wrote:
> 
> Thanks Tim
> 
> I agree with your comments.  I initially looked for Bridge mode settings, but 
> this is not mentioned at all.  The instructions are to disable the DHCP in 
> the proposed switch (Bob Lite, the downstream router), so this should just 
> leave the Netgear (upstream router) to handle IP addresses. Same result?
> 
> The final step is to “change the downstream router’s LAN IP to an unused IP 
> in the same subnet as the upstream router.”  I tried to change the Bob IP 
> address to a number within the working range of the Netgear.  This range 
> seems to be 2-254.  On reflection it doesn’t seem to be right to use “99” as 
> the addresses are dynamic (if that is the term) and will change to say 
> 192.168.1.5 next week when some devices are inactive.  It’s the devices I 
> plug into the ethernet ports that will need dynamic addresses I think.  And I 
> don’t really know what a “subnet” is.
> 
> Another reading of one of the more lucid descriptions gives a different slant 
> - I’ll try it out tomorrow.  That is, to change the network IP address to one 
> OUTSIDE  the range used by the upstream router (but not numbers 0,1 and 255). 
>  But is “256” a valid number in this context?  Most examples I skimmed used 
> “2” as the address for the modified modem/router, but I have numbers 2-15 in 
> use at various times.  Looks like I need to spend some time reading the 
> Netgear support documents - not an easy task.  
> 
> BTW - looks like a typo - or a real mistake - in my original text.  I thought 
> I changed the Bob address to 192.168.1.99; not “169”.
> 
> Cheers
> Alan
> 
> 
> 
>> On 25 May 2018, at 7:39 pm, Tim Law <[email protected]> wrote:
>> 
>> Hi Alan,
>> 
>> I suspect there will be something to do with Bridge mode in the directions.  
>>  Only one device can distribute IP addresses. 
>> 
>> Tim
>> 
>>> On 25 May 2018, at 6:05 pm, Alan Smith <[email protected]> wrote:
>>> 
>>> I need help in converting an old modem/router into an ethernet switch.  
>>> There are a number of web articles that describe how to do this.  It seems 
>>> such a simple 5-minute task, but I got nowhere after 5 hours.
>>> 
>>> My main network router is a Netgear R6400v2 model with four ethernet ports 
>>> which are all in use.  I will be replacing the Netgear with an Apple 
>>> AirPort Extreme with three ports.  I will need another port.
>>> 
>>> My ethernet VOIP adapter is an old iiNet Bob Lite modem/router which has 
>>> four ethernet ports.  Netgear has no problems with this and allocates “Bob 
>>> phone” an IP address in its standard range.   How can I get the three 
>>> “spare” Bob Lite ports functional?
>>> 
>>> Just plugging an iMac into a spare ethernet port will sometimes just work, 
>>> but then fails if restarted.  The Bob IP Address is 10.1.1.1 while Netgear 
>>> IP address is 192.168.1.1.   I tried changing the Bob IP address to 
>>> 192.169.1.99, but could no longer access the modem set-up page.
>>> 
>>> Cheers
>>> Alan
>>> 
>>> 
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