Routing through a router-modem
I'm using pfSense-2.0-RELEASE-nanobsd_vga on a CF module on an ASUS P4B with a single NIC and 4 Intel Dual NICs.
I have a number of router-modems. I have set up the modem to login for me and stay connected. When I connect a PC to it, it works fine. When I hook up pfSense to it, if I don't create a route of any kind, the gateway page tells me it's offline. When I do create a route to it (0.0.0.0/32 or 0.0.0.0/1) it doesn't work.
How do I get this to work?
I'm getting very frustrated with this.
marcelloc last edited by
Router-modem means dsl modems?
If so, they are configured to bridge or to route?
DSL modems. They are all TP-Link TD-8840T router-modems.
Options applicable are:
ISP: Dynamic IP/Static IP/PPPoE*/Bridge
PPPoE Options are as follows:
Get IP Address: Static/Dynamic*
Bridge Interface: Activated*/Deactivated
Default Route: Yes*/No
While I have the modems set to Get a Dynamic IP address, they always get the same one since they have static IP addresses assigned to their logins. This way, I can set the gateway to ping their login IP address to make sure the link is still up. If I set the modem to use static IP addresses, then the ping works even when the link is down.
I have found the Bridge interface setting has only one effect. When I use a PC connected to the modem, it can use ordinary DHCP/NAT to pass through the modem, or it can use PPPoE to pass through the modem. When I have this disabled, the PPPoE pass through is blocked.
Disabling NAT breaks my ability to use a PC on the modem in DHCP mode.
I have not played with the Default Route setting.
Also, when I use the diagnostics to Ping 184.108.40.206 through OPT5, it works. If WAN goes down (because I force it), and I try to ping this address from my PC, it doesn't work. So traffic isn't passing through, even though I ran the multi-WAN wizard.
Should the network in Routes be 0.0.0.0/1? My thought is it should be 0.0.0.0/0 but that option isn't available.
marcelloc last edited by
To prevent routing problems, set wan modem in bridge mode and other 07modems in router mode with 07 different networks.
That's been the case from the beginning.
WAN0_MODEM2 (WAN) = 192.168.2.1, Pure Bridge mode
WAN1_MODEM3 (OPT1) = 192.168.3.1, Router mode with PPPoE.
WAN2_MODEM4 (OPT2) = 192.168.4.1, Router mode with PPPoE.
WAN3_MODEM5 (OPT3) = 192.168.5.1, Router mode with PPPoE.
WAN4_MODEM6 (OPT4) = 192.168.6.1, Router mode with PPPoE.
WAN5_MODEM7 (OPT5) = 192.168.7.1, Router mode with PPPoE.
WAN6_MODEM8 (OPT6) = 192.168.8.1, Router mode with PPPoE.
WAN7_MODEM9 (OPT7) = 192.168.9.1, Router mode with PPPoE.
Right now, I only have WAN0_MODEM2 (WAN) and WAN5_MODEM7 (OPT5) enabled while I test and debug the set-up. But I need all 6 WANs going, and then eventually add the last 2 OPTs as additional WANs.
I've tried setting WAN5_MODEM7 to a static IP address, 192.168.7.2/28, it's gateway from "dynamic" to 192.168.7.1. Now, I can pass through the modem to 220.127.116.11 which is the modem's WAN address.
In "System: Static Routes", I have a route to 0.0.0.0/1. However, I still cannot reach through to 18.104.22.168 (Google) or 22.214.171.124 (OpenDNS). The first, I get "Request timed out" and the second I get "Reply from 172.16.1.13: Destination host unreachable". When I use Diagnostics: Ping through WAN5_MODEM7, it comes back 0.0% packet loss for both IP addresses. Therefore, the pfSense box can still reach through the modem, but I still can't quite reach through the pfSense box.
What's my next step?
If I set WAN5_MODEM7 (OPT5) as the default gateway, and disable WAN0_MODEM2 (WAN), then everything works just fine.
So I think we're making progress, but we're not there yet.
System->Advanced->Miscellaneous->Load Balancing->Allow default gateway switching
Yes! It works!
I'm now running very nicely on 6 ADSL modems.