Re: Modem/Router/Router -

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On Thu, 2019-05-09 at 15:14 -0400, Bob Goodwin wrote:
> If I put the viasat unit into it's bridged mode I would expect output
> as 182.168.1.1 but not sure of that.

If you put it into bridge mode, it'll have the public IP that the ISP
assigns to you (previously that IP would have just been internal, now
it'd be on the outside network connection).  As such, it's only
suitable for connecting to one device (either one computer, or a
router).  Because most ISPs will only assign one IP to each customer.

If ISPs would assign multiple IPs to customers, then we could forgo
routers.  However, having a router gives you a fair bit of isolation
from outside probing.  Especially if it has a firewall.  NB:  A router
without actually having a firewall feature is not a firewall.

> However they insist that bridged mode can not be used, I think
> because it kills the voip interface which is integral to the viasat
> router/modem.

If VOIP is in-built to the box, I would believe that reason.  Do you
need VOIP?


> If I can make NAT work ...

I don't understand why this is so hard.  Most routers do NAT from their
default condition.  You have to go out of your way to stop them doing
it.

For your situation (NAT behind NAT), all you have to do is configure
its LAN side to use a different IP range than the WAN side (like my
prior mails have discussed).  It'll control the equipment on your LAN
side using DHCP, and you'll have to manually change any equipment not
using DHCP.


> I have an identical ASUS router in the barn set up as a bridge and it
> seems useless for anything else. I know that I can't access it's
> browser set up function without bringing it in here and plugging a
> cat5 cable into it.

Most routers will only let you configure them from something on its LAN
side, they'll block WAN access to its configurator (unless you enable
some remote access type of setting).  Likewise, many will disable
configuration control from the WiFi, unless you specifically set an
option to allow it.

I'm not sure why you'd want to use it as a router, in that situation,
anyway.  Surely you only need to act as a switch, there?



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