[OpenVPN home] [Date Prev] [Date Index] [Date Next]
[OpenVPN mailing lists] [Thread Prev] [Thread Index] [Thread Next]
Google
 
Web openvpn.net

Re: [Openvpn-users] --// FreeBSD4.11 gateway <---> WindowsServer2003gateway// *MYSTERIOUS* problem


  • Subject: Re: [Openvpn-users] --// FreeBSD4.11 gateway <---> WindowsServer2003gateway// *MYSTERIOUS* problem
  • From: Leonid Satanovsky <satanovskyl@xxxxxxx>
  • Date: Fri, 06 Oct 2006 19:54:21 +0400

well.... hope this'll make sense better than prev. messages )

(SIMPLIFIED CONFIGURATION INFO)
	We have 2 gateways: Win GW an FreeBSD GW.
		192.168.254.6 is Win GW tunnel endpoint (tun interface)
		192.168.254.5 is FreeBSD GW tunnel endpoint (tun interface) 
		
		<I>	Configuration details are in the attachment.
		
(STATE 1) 
	After arp table at the Win GW is flushed - I loose 
	ability to ping any of its interfaces from the FreeBSD gateway... 
		And got this strange output of "arp -a" at Win GW when I start pinging 
		from FreeBSD to Win:
			<...>
			Interface: 192.168.254.6 --- 0x100006
				Internet Address      Physical Address      Type
				192.168.254.5         00-00-00-00-00-00     invalid
			<...>
		
		<I>	There is a "tcpdump" of both Win GW and FreeBSD GW tunnel endpoints 
			in the attachment.
	
(STATE 2) 
	Only after I ping from 192.168.254.6 to 192.168.254.5 I get
	ability to ping from 192.168.254.5 to 192.168.254.6 ... 
	but just for a TTL of dynamic arp-record at the Win GW.
		Routing tables at both gateways remain the same as in (1), so, I guess, 
			it is not an issue of routing... 
			After the arp-record at Win GW is flushed i return to state (1).
				or, sometimes, go to the state (3) :]
				
(STATE 3)
	Listen to Jethro Tull and have a cup of tea.

--// leonid.
<...>
19:29:46.568921 192.168.254.5 > 192.168.127.1: icmp: echo request
19:29:47.578993 192.168.254.5 > 192.168.127.1: icmp: echo request
<...>
No.     Time        Source                Destination           Protocol Info
      1 0.000000    192.168.254.5         192.168.254.6         ICMP     Echo (ping) request

Frame 1 (98 bytes on wire, 98 bytes captured)
Ethernet II, Src: 00:ff:c2:05:91:35 (00:ff:c2:05:91:35), Dst: 00:ff:c1:05:91:35 (00:ff:c1:05:91:35)
Internet Protocol, Src: 192.168.254.5 (192.168.254.5), Dst: 192.168.254.6 (192.168.254.6)
Internet Control Message Protocol

No.     Time        Source                Destination           Protocol Info
      2 0.000331    00:ff:c1:05:91:35     Broadcast             ARP      Who has 192.168.254.5?  Tell 192.168.254.6

Frame 2 (42 bytes on wire, 42 bytes captured)
Ethernet II, Src: 00:ff:c1:05:91:35 (00:ff:c1:05:91:35), Dst: Broadcast (ff:ff:ff:ff:ff:ff)
Address Resolution Protocol (request)

No.     Time        Source                Destination           Protocol Info
      3 0.000440    00:ff:c2:05:91:35     00:ff:c1:05:91:35     ARP      192.168.254.5 is at 00:ff:c2:05:91:35

Frame 3 (42 bytes on wire, 42 bytes captured)
Ethernet II, Src: 00:ff:c2:05:91:35 (00:ff:c2:05:91:35), Dst: 00:ff:c1:05:91:35 (00:ff:c1:05:91:35)
Address Resolution Protocol (reply)

No.     Time        Source                Destination           Protocol Info
      4 0.987389    192.168.254.5         192.168.254.6         ICMP     Echo (ping) request

<...>
-----------------------------------------------------
FreeBSD GW
-----------------------------------------------------
 WAN-IP: AA.AA.AA.AA
 NET: 192.168.223.0/24
 VPN-ENDPOINT: 192.168.254.5 ----> 192.168.254.6
 GATEWAY-OS: FreeBSD
 GATEWAY-LAN-IP: 192.168.223.1
 -----------------------------------------------------
  IFCONFIG
 -----------------------------------------------------
  <...>
  xl1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
   inet 192.168.223.1 netmask 0xffffff00 broadcast 192.168.223.255
   ether 00:60:98:ef:2b:e5
   media: Ethernet autoselect (100baseTX <full-duplex>)
   status: active
  <...>
  tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500
   inet 192.168.254.5 --> 192.168.254.6 netmask 0xffffffff
   Opened by PID 1768
  <...>
 
 -----------------------------------------------------
  OPENVPN CONFIG
 -----------------------------------------------------
	remote BB.BB.BB.BB
	port 1194
	user nobody
	group nobody
	proto udp
	route 192.168.127.0 255.255.255.0 192.168.254.6
	dev tun
	tun-mtu 1500
	mssfix 1400
	ifconfig 192.168.254.5 192.168.254.6 255.255.255.252
	secret openvpn.key.1
	mlock
	ping 10
	comp-lzo
	verb 4
	mute 10
  

-----------------------------------------------------
 Win GW
-----------------------------------------------------
 WAN-IP: BB.BB.BB.BB
 NET: 192.168.127.0/24, 192.168.0.0/24
 VPN-ENDPOINT: 192.168.254.6  -----> 192.168.254.5
 GATEWAY-OS: Windows server 2003
 GATEWAY-LAN-IP: 192.168.127.1, 192.168.0.55
 -----------------------------------------------------
  IPCONFIG
 -----------------------------------------------------
  
  <...>
  
  Ethernet adapter INT:
  
  Connection-specific DNS Suffix  . :
  IP Address. . . . . . . . . . . . : 192.168.127.1
  Subnet Mask . . . . . . . . . . . : 255.255.255.0
  IP Address. . . . . . . . . . . . : 192.168.0.55
  Subnet Mask . . . . . . . . . . . : 255.255.255.0
  Default Gateway . . . . . . . . . :

  <...>
   
  Ethernet adapter kot:
   
  Connection-specific DNS Suffix  . :
  IP Address. . . . . . . . . . . . : 192.168.254.6
  Subnet Mask . . . . . . . . . . . : 255.255.255.252
  Default Gateway . . . . . . . . . :

 -----------------------------------------------------
  OPENVPN CONFIG
 -----------------------------------------------------
	remote AA.AA.AA.AA
	lport 1194
	rport 1194
	proto udp
	dev tun
	tun-mtu 1500
	mssfix 1400
	ifconfig 192.168.254.6 192.168.254.5 255.255.255.252
	dev-node kot
	secret key.txt
	route-method exe 
	route-delay 9
	route-gateway 192.168.254.5
	route 192.168.223.0 255.255.255.0 
	ping 10
	comp-lzo
	verb 4
	mute 10

 -------------------------------------------------------

Active Routes:
Network Destination        Netmask          Gateway       Interface  Metric
          0.0.0.0          0.0.0.0    XX.XX.XX.XX    BB.BB.BB.BB      1
        127.0.0.0        255.0.0.0        127.0.0.1        127.0.0.1      1
      192.168.0.0    255.255.255.0     192.168.0.55     192.168.0.55     20
     192.168.0.55  255.255.255.255        127.0.0.1        127.0.0.1     20
    192.168.0.255  255.255.255.255     192.168.0.55     192.168.0.55     20
     192.168.18.0    255.255.255.0    192.168.254.5    192.168.254.6      1
    192.168.127.0    255.255.255.0    192.168.127.1     192.168.0.55     20
    192.168.127.1  255.255.255.255        127.0.0.1        127.0.0.1     20
  192.168.127.255  255.255.255.255    192.168.127.1     192.168.0.55     20
    192.168.223.0    255.255.255.0    192.168.254.5    192.168.254.6      1
    192.168.254.4  255.255.255.252    192.168.254.6    192.168.254.6     30
    192.168.254.6  255.255.255.255        127.0.0.1        127.0.0.1     30
  192.168.254.255  255.255.255.255    192.168.254.6    192.168.254.6     30
        200.1.1.0    255.255.255.0    192.168.0.100     192.168.0.55      1
    XX.XX.XX.NET  255.255.255.252    BB.BB.BB.BB    BB.BB.BB.BB     30
    BB.BB.BB.BB  255.255.255.255        127.0.0.1        127.0.0.1     30
   217.13.208.255  255.255.255.255    BB.BB.BB.BB    BB.BB.BB.BB     30
        224.0.0.0        240.0.0.0     192.168.0.55     192.168.0.55     20
        224.0.0.0        240.0.0.0    192.168.254.6    192.168.254.6     30
        224.0.0.0        240.0.0.0    BB.BB.BB.BB    BB.BB.BB.BB     30
  255.255.255.255  255.255.255.255     192.168.0.55     192.168.0.55      1
  255.255.255.255  255.255.255.255    192.168.127.1           100004      1
  255.255.255.255  255.255.255.255    192.168.254.6    192.168.254.6      1
  255.255.255.255  255.255.255.255    BB.BB.BB.BB    BB.BB.BB.BB      1
Default Gateway:     XX.XX.XX.XX
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Openvpn-users mailing list
Openvpn-users@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/openvpn-users

Warning: require_once(../../../archive_common.php) [function.require-once]: failed to open stream: No such file or directory in /home/openvpn/domains/openvpn.net/public_html/archive/openvpn-users/2006-10/msg00068.html on line 368

Fatal error: require_once() [function.require]: Failed opening required '../../../archive_common.php' (include_path='/usr/local/lib/php') in /home/openvpn/domains/openvpn.net/public_html/archive/openvpn-users/2006-10/msg00068.html on line 368