ppp question

[Boris Kovalenko]

Hello!

    I'm using FreeBSD 5.1-p10 with pppoe and user-level ppp. And I see 
stranges lines in my messages file:
ppp[17938]: tun3: Warning: iface add: ioctl(SIOCAIFADDR, xxx.xxx.xxx.38 
-> 192.168.0.2): File exists

My ppp.conf
default:
 set log Phase Chat LCP IPCP CCP tun command
 ident user-ppp VERSION (built COMPILATIONDATE)

 # Ensure that "device" references the correct serial port
 # for your modem. (cuaa0 = COM1, cuaa1 = COM2)
 #
 set device /dev/cuaa1

 set speed 115200
 set dial "ABORT BUSY ABORT NO\\sCARRIER TIMEOUT 5 \
           \"\" AT OK-AT-OK ATE1Q0 OK \\dATDT\\T TIMEOUT 40 CONNECT"
 set timeout 180                        # 3 minute idle timer (the default)
 enable dns                             # request DNS info (for resolv.conf)

papchap:
 #
 # edit the next three lines and replace the items in caps with
 # the values which have been assigned by your ISP.
 #

 set phone PHONE_NUM
 set authname USERNAME
 set authkey PASSWORD

 set ifaddr 10.0.0.1/0 10.0.0.2/0 255.255.255.0 0.0.0.0
 add default HISADDR                    # Add a (sticky) default route

pallada:
    enable pap
    disable chap
    allow mode direct
    set mru 1492
    set mtu 1492
    set speed sync
    set radius /etc/radius.conf
    set ifaddr 192.168.0.1 192.168.0.2-192.168.0.6
    set dns xxx.xxx.xxx.38
    enable dns
    accept dns
    set timeout 3600
    enable lqr
    set lqrperiod 5

Running pppoed as /usr/libexec/pppoed -P /var/run/ppp-pal.pid -p pallada 
vlan1

There is no problems with same configuration on 4.8R What this messages 
means?

Regards,
    Boris