Pemulung yang Berusaha Memanfaatkan Limbah Sebaik Mungkin

PPP to dial ISP di FreeBSD

Posted by kang deden pada 31 Januari, 2007

Let’s get to the point, check the tun0 device in /dev , if there are no tun* devices then create them by this following command :

#cd /dev

#sh MAKEDEV tun0     or    #sh MAKEDEV tun15    ( this will create tun0, … ,tun15 ).

check the modem device in /dev , or you can create them by :

#sh MAKEDEV cuaa  ( this will create cuaa* devices ). 

make sure you have done the steps above, and now we will need ppp.conf file in /etc/ppp/ . You can get the ppp.conf.sample in /usr/share/example/ppp/ for the sample configuration. Here is ppp.conf file in my FreeBSD machine:

#PPP.CONF         default:
        set log Phase Chat LCP IPCP CCP tun command
        set device /dev/cuaa0                        #COM1=cuaa0 COM2=cuaa1
        set speed 115200                               #or try 38400
        set timeout 180                                 # 3 minute idle timer (the default)
        enable dns                                         # request DNS info (for resolv.conf)

        telkom:                                           #ISP identifier 
        set phone 080989999                       #ISP’s dial number
        set authname telkomnet@instant      #Your username
        set authkey telkom                            #your Password 
        set ifaddr     #this only for Dynamic IP address
        add default HISADDR                         # Add a default route

        ISP2:                                              #if you have your 2nd ISP  
        set phone 123456789 
        set authname xxxxxxxxxxxxxxxx
        set authkey xxxxxx  
        set ifaddr
        add default HISADDR 


The PPP.conf file above assumes that we have two ISPs , so just decide which ISP we want to dial. Then simply execute ppp -auto telkom  or  ppp -auto ISP2  ( automatic mode ), we also enable dial in interactive mode. For fully PPP tutorial see

Don’t forget to put your ISP`s DNS in your resolv.conf file :


It’s great idea to resync the ipf current list in the kernel each time ppp make a connection, and I always unload the ipnat.rules when ppp closes connection. So I put some commands in the ppp.linkup and ppp.linkdown in /etc/ppp/  or you can create them both by yourself. Here is the samples :

!bg /sbin/ipnat -f /etc/ipnat.rules   #this will load ipnat.rules when connected,so you dont need to load ipnat from rc.local.
!bg /sbin/ipf -y                             #this will resync ipf rules                                    
#end of ppp.linkup
!bg /sbin/ipf -y
!bg /sbin/ipnat -f /etc/ipnat -CF        #this will flush ipnat.rules when disconnected.
#end of ppp.linkdown

Happy surfing ,, now .. :)) 


Satu Tanggapan to “PPP to dial ISP di FreeBSD”

  1. Blogdehian said

    di coba dulu mas
    aku lagi bikin router dengan pfsense (preBsd) namun masih bingung cara mengkoneksikan ke internet dengan cara dial-up

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