Make sure you have outbound NAT rules for both WAN and COMCAST. 

----- Original Message -----

From: "Walter Parker" <[email protected]> 
To: "pfSense support and discussion" <[email protected]> 
Sent: Wednesday, December 4, 2013 5:57:41 PM 
Subject: [pfSense] Multi-WAN network access 

Hi, 

I've got a pfSense router with a WAN connection that has 4 interfaces: 

WAN - A 200 mbs connection. This is on a /20 subnet and the other side is the 
default route. 
LAN - This is a static routed /24 network from the company providing the 200 
mbs WAN connection 
COMCAST - This is a static routed /28 network from Comcast. 

I set the WAN interface with a route back to Provider A, and the COMCAST 
interface with a route back to the Comcast gateway address. I created two 
gateway groups, one that the WAN network as Tier1 and COMCAST as Tier2, and 
another that COMCAST as Tier2 and the WAN network as Tier2. The instructions on 
the wiki say firewall rules must be add changed to use these groups rather than 
the system routing. I tried changed the allow all route to use the gateway 
group (rather than the default of *), but this didn't seem to route packets out 
the COMCAST link when the WAN link was down. 

I did a little bit of testing: I used the ping test and was able to ping the 
outside world when using WAN as the interface, but when I changed the interface 
to COMCAST, I could only ping the Comcast gateway (as if the packets would not 
route). From an external host, I was able to do an ICMP ping to the COMCAST 
interface, but was not able to do a UDP ping or make a TCP connection. 

Questions: 

I think I missed a step in the whole "add a firewall rule for the gateway 
group" process, which seem more like a "solution left as exercise for the 
reader", what do I need to do to get gateway groups working on the firewall? 

When using ping, when I pick the interface, does it work like a Cisco, where 
the source IP is the interface address and the next hop router would be 
interface's router, in this case the Comcast gateway? 

When I have squid running a bound to the LAN interface, I'd like the system use 
which ever WAN/COMCAST interface is currently up and working. I want that to be 
the WAN interface unless it is down. 

When the WAN interface is down, I'd like to be able to ssh/https to the COMCAST 
interface address to see what is gong wrong. Can I set up the system to work 
like this? 


Thank you for any ideas as to what I might has done wrong, 


Walter 





-- 
The greatest dangers to liberty lurk in insidious encroachment by men of zeal, 
well-meaning but without understanding. -- Justice Louis D. Brandeis 

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