[Rdo-list] snat and my WRT54G router

[Dan Sneddon]

I don't think the range you are using is the problem, although you should be using 192.168.1.0/24 as your subnet and 192.168.1.1 as the router gateway (assuming that the WRT is .1). You can set the allocation pool to a range like 192.168.1.10-192.168.1.99. Also, assuming your WRT router is .1, you will have to manually assign the virtual router IP (since the default is .1 when you create a router on a /24 network).

You say that your VMs are connected through a virtual router. Are you using floating IPs? You can't just route the VM traffic to the WRT router without SNAT on the virtual router, so make sure you set that network to external.

I suspect that the problem here might be that the virtual router was using the same IP as the WRT router, or that you were doing routing without SNAT because the network wasn't marked as external. 

>> Dan Sneddon  |  Principal OpenStack Engineer  |  dsneddon at redhat.com


> On Mar 19, 2016, at 4:39 PM, John Alway <jalway at gmail.com> wrote:
> 
> Hello,
> 
> I'm still not able to get snat to work (connecting to the Internet) with my RDO all-in-one installation, and I'm wondering if my router is the issue.
> 
> My router is a Linksys WRT54G, which does not support a "DHCP reservation" feature.   I was able to set a fixed ip on it, because there is a range available from 192.168.1.2 through to 192.168.1.99, also 192.168.1.150 through 192.168.1.254.
> 
> This is according to "toomanydonuts" posting here:
> http://community.linksys.com/t5/Wireless-Routers/WRT54G-Static-IP-Question/td-p/152001
> 
> I've been using the lower address range.  Could this be the problem, or should I look elsewhere?
> 
> In my setup I have two private subnets, and three VMs.  I can ping between the VMs, but can't ping the Internet.   A virtual router connects the subnets and external network.
> 
> I set up my external subnet as 192.168.1.0/28.  I use the 28 to limit the range for my router.  The external range is the same as my actual physical addresses on my LAN.
> 
> I should add, I'm not a network guy. I'm learning a lot of networking on the fly here. 
> 
> Thanks for any feedback!!
> ...John
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