(captive portal) exclude "pppoe" address as static ip

(cherry picked from commit 01867a1b)

src/opnsense/service/templates/OPNsense/IPFW/ipfw.conf

@@ -80,7 +80,7 @@ add 203 skipto 60000 ipv4 from any to 127.0.0.0/8
 # Allow traffic to this hosts static ip's
 #======================================================================================
 {% for intf_key,interface in interfaces.iteritems() %}
-{% if intf_key != "wan" and interface.ipaddr != "dhcp" and interface.ipaddr|default("") != "" %}
+{% if intf_key != "wan" and interface.ipaddr != "dhcp" and interface.ipaddr != "pppoe" and interface.ipaddr|default("") != "" %}
 add {{loop.index  + 1000}} skipto 60000 udp from any to {{ interface.ipaddr }} dst-port 53 keep-state
 add {{loop.index  + 1000}} skipto 60000 ip from any to { 255.255.255.255 or {{interface.ipaddr}} } in
 add {{loop.index  + 1000}} skipto 60000 ip from { 255.255.255.255 or {{interface.ipaddr}} } to any out