asterisk users - Nov 2006 - iax2 qualify - false "peer unreachable"

I would like to ask, if someone observe also problem with peer qualify 
problems,
my asterisk log is full with UNREACHABLE/REACHABLE messages, even when 
two asterisks are in LAN environment,
please take a look into this debug, I can't find any problem with packet 
loss, all qualify requests are replied and acknowledged,
I will submit bug report, if you will also not find any problems here...
PJ



BILL-GW:
bill*CLI> iax2 show peer ipbx-gw
  Status       : OK (4 ms)
 Qualify        : every 20000ms when OK, every 10000ms when UNREACHABLE 
(sample smoothing On)

[Nov  4 11:06:58] Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 000 Type: 
IAX     Subclass: POKE
[Nov  4 11:06:58]    Timestamp: 00019ms  SCall: 00002  DCall: 00000 
[193.179.bbb.bbb:4569]
[Nov  4 11:06:58] Rx-Frame Retry[ No] -- OSeqno: 000 ISeqno: 001 Type: 
IAX     Subclass: PONG
[Nov  4 11:06:58]    Timestamp: 00019ms  SCall: 00001  DCall: 00002 
[193.179.bbb.bbb:4569]
[Nov  4 11:06:58] Tx-Frame Retry[-01] -- OSeqno: 001 ISeqno: 001 Type: 
IAX     Subclass: ACK
[Nov  4 11:06:58]    Timestamp: 00019ms  SCall: 00002  DCall: 00001 
[193.179.bbb.bbb:4569]

[Nov  4 11:07:01] Rx-Frame Retry[ No] -- OSeqno: 000 ISeqno: 000 Type: 
IAX     Subclass: POKE
[Nov  4 11:07:01]    Timestamp: 00018ms  SCall: 00019  DCall: 00000 
[193.179.bbb.bbb:4569]
[Nov  4 11:07:01] Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 001 Type: 
IAX     Subclass: PONG
[Nov  4 11:07:01]    Timestamp: 00018ms  SCall: 00003  DCall: 00019 
[193.179.bbb.bbb:4569]
[Nov  4 11:07:01] Rx-Frame Retry[ No] -- OSeqno: 001 ISeqno: 001 Type: 
IAX     Subclass: ACK
[Nov  4 11:07:01]    Timestamp: 00018ms  SCall: 00019  DCall: 00003 
[193.179.bbb.bbb:4569]




IPBX-GW:
ipbx*CLI> iax2 show peer bill-gw
  Status       : OK (3 ms)
  Qualify      : every 12000ms when OK, every 3000ms when UNREACHABLE 
(sample smoothing Off)

[Nov  4 11:06:58] Rx-Frame Retry[ No] -- OSeqno: 000 ISeqno: 000 Type: 
IAX     Subclass: POKE
[Nov  4 11:06:58]    Timestamp: 00019ms  SCall: 00002  DCall: 00000 
[193.179.iii.iii:13526]
[Nov  4 11:06:58] Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 001 Type: 
IAX     Subclass: PONG
[Nov  4 11:06:58]    Timestamp: 00019ms  SCall: 00001  DCall: 00002 
[193.179.iii.iii:13526]
[Nov  4 11:06:58] Rx-Frame Retry[ No] -- OSeqno: 001 ISeqno: 001 Type: 
IAX     Subclass: ACK
[Nov  4 11:06:58]    Timestamp: 00019ms  SCall: 00002  DCall: 00001 
[193.179.iii.iii:13526]
[Nov  4 11:06:59] NOTICE[9502]: chan_iax2.c:7853 __iax2_poke_noanswer: 
Peer 'bill-gw' is now UNREACHABLE! Time: 3

[Nov  4 11:07:02] Tx-Frame Retry[000] -- OSeqno: 000 ISeqno: 000 Type: 
IAX     Subclass: POKE
[Nov  4 11:07:02]    Timestamp: 00018ms  SCall: 00019  DCall: 00000 
[193.179.iii.iii:13526]
[Nov  4 11:07:02] Rx-Frame Retry[ No] -- OSeqno: 000 ISeqno: 001 Type: 
IAX     Subclass: PONG
[Nov  4 11:07:02]    Timestamp: 00018ms  SCall: 00003  DCall: 00019 
[193.179.iii.iii:13526]
[Nov  4 11:07:02] NOTICE[9504]: chan_iax2.c:7067 socket_process: Peer 
'bill-gw' is now REACHABLE! Time: 3
[Nov  4 11:07:02] Tx-Frame Retry[-01] -- OSeqno: 001 ISeqno: 001 Type: 
IAX     Subclass: ACK
[Nov  4 11:07:02]    Timestamp: 00018ms  SCall: 00019  DCall: 00003 
[193.179.iii.iii:13526]