Dear All,
   Based on the following scenario and configurations shown here, 

PFSense-1
---------
WAN Interface, public IP: 218.208.98.20/27
GW: 218.208.98.1
DNS1: 202.188.0.133
DNS2: 202.188.1.5
LAN Interface, public IP: 218.208.98.21/27 and bridged to WAN interface
DHCP server enabled with the range of 218.208.98.24 to 218.208.98.26
PPPoE enabled on LAN interface with Radius authentication as the following
configurations:
Server Address: 10.10.10.10
Issue IP Addresses via RADIUS server is enabled

PFSense-2
---------
WAN Interface, public IP: 218.208.98.22/27
GW: 218.208.98.1
DNS1: 202.188.0.133
DNS2: 202.188.1.5
LAN Interface, public IP: 218.208.98.23/27 and bridged to WAN interface
DHCP server enabled with the range of 218.208.98.28 to 218.208.98.31
PPPoE enabled on LAN interface with Radius authentication as the following
configurations:
Server Address: 10.10.20.10
Issue IP Addresses via RADIUS server is enabled


                 WAN                        LAN
                                                          |----------------|
                                                 |--------|Access Point(AP)|
                                                 |        |----------------|
                                                 |
                       |----------------|    |--------|   |----|   |------|
            |----------|   PFSense-1    |----| Switch |---|ATA |---|Phone |
            |          | in Bridge mode |    |--------|   |----|   |------|
     |--------|        |----------------|        |
-----| Switch |                                  |        |----|
     |--------|                                  |--------| PC |
       |  | |                                             |----|
       |  | |          |----------------|
       |  | |          |  PFSense-2     |    |---------------|
       |  | |----------| in Bridge mode |----| Same as above |
       |  |            |----------------|    |---------------|
       |  |
       |  |            |-------------|
       |  -------------| SIP Server  |
       |               |-------------|
       |              
       |               |---------------|
       |---------------| Radius Server |
                       |---------------|


As noted above that each interface on both PFSense is assigned a public IP
where the LANs interfaces are bridged to the WAN. All the PCes (Wired and
Wireless) have to be on public IP addresses assigned by DHCP for remote
monitoring and they have to login using the captive portal authentication in
order to access the Internet. The ATA connects normal phones to sip server
in order to make VoIP calls with other phones on the same network or the
other one.
 
The ATA Automatically dials a PPPoE to PFSense to establish a PPPoE
connection using Radius authentication and assigned a public IP address
pushed by the Radius based on the attributes, for example
FRAM-IP-ADDRESS=218.208.98.27 and FRAM-IP-NETMASK=225.225.225.224 bound to
the authentication account in the Radius server. Each ATA has its own
authentication account bound to a unique public IP address registered in the
Radius server

I am facing two problems:

First: I cannot ping or access the ATA's web GUI from the WAN side although
it has assigned a public IP after establishing the PPPoE connection and get
it registered with the SIP server.

Second: Sometimes one PC on one PFSense LAN gets a DHCP IP from the second
PFSense because they are on a bridge mode. So how to stop this to happens?


Your help is much appreciated and thanks in advance

Regards
Bassam


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