[talk] Optimum provided home router madness

[Charles Sprickman]

On Feb 1, 2015, at 8:12 PM, Mark Saad <mark.saad at ymail.com> wrote:

> 
> From: Mark Saad <mark.saad at ymail.com>
> To: "talk at lists.nycbug.org" <talk at lists.nycbug.org> 
> Sent: Sunday, February 1, 2015 7:55 PM
> Subject: Re: [talk] Optimum provided home router madness
> 
> 
> 
> > On Feb 1, 2015, at 7:34 PM, Justin Sherrill <justin at shiningsilence.com> wrote:
> > 
> >> On Sun, Feb 1, 2015 at 7:17 PM, Charles Sprickman <spork at bway.net> wrote:
> >> Not really, I think back in the old days of @Home cable service (remember that?)
> >> there was some consortium of cable providers and they were all numbering out
> >> of 24.0.0.0/8.  Most now seem to have block there as well:
> > 
> > Time Warner through NY state is using 24.0.0.0/8, also.  When I worked
> > for them years ago, all our Rochester servers were in 24.93.x.x, and
> > Syracuse was 24.92.x.x, etc.  My current Time Warner fiber link at my
> > workplace is 24.39.x.x.
> 
> I have to check at home , but iirc I have either a 64.x.x.x or a 66.x.x.x on optimum.
> 
> 
> 
> 
> > 
> >> Cablevision, in general, is one of the least sucky options.  Who else is going to sell
> >> me 80/25 with a /29 for under $90/month?
> > 
> > Oh, I wish I could get that.
> 
> 
> Likewise , I am also a optimum customer but I am on a 25/5 for $60/mo .  What's are magic words I have to say on the phone to get that plan ?  
> 
> 
> --
> 
> Mark saad | mark.saad at ymail.com 
> 
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> 
> Ok so I was able to check this out on a desktop and its even weirder. So my cell phone is getting an external ip of 107.188.23.xxx while the wired desktop is claiming 68.197.163.xxx . The wireless is clearly natting using 25.248.180.xxx/13 for the internal side of the nat which is strange; While the wired is using a 192.168.0.x/24 .   So why do I think I am on the same gear ? I unplugged the router and both the wireless, I was on , and the wired went down. Well either way Optimum is doing some strange stuff here. 

Two SSIDs - one for the homeowner, one for the guest (“optimumwifi” should be the SSID for the guest access).   They should be separate networks - meaning your guests should not be able to reach your internal hosts behind the router (wired or wireless).  Also the homeowner’s network is secured  with WPA2, whereas the guest network has no wifi security enabled.  The two network layout also means that if a guest comes over and starts doing “bad things”, the onus is not on the network’s owner (in theory at least, no idea what the supboena process would look like).

If I remember the details correctly, the router also remembers hosts that connected to the private wifi and then blocks them from connecting to the open guest network based on MAC address.

Charles

> 
> -- 
> Mark Saad 
> mark.saad at ymail.com
> 
> 
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