Re: [gentoo-user] openvpn static ip

[Joseph <syscon780@gmail.com>]

On 02/25/10 08:40, Xavier Parizet wrote:
>On 02/25/2010 02:32 AM, Joseph wrote:
>> I've configured OpenVPN and it works OK but I can not seems to figure it
>> out how to assign static IP to clients
>>
>> My server.conf port 8458
>> proto udp
>> dev tun
>> mode server
>> ca /usr/share/openvpn/easy-rsa/keys/ca.crt
>> cert /usr/share/openvpn/easy-rsa/keys/server.crt
>> key /usr/share/openvpn/easy-rsa/keys/server.key
>> dh /usr/share/openvpn/easy-rsa/keys/dh1024.pem
>> server 192.168.139.0 255.255.255.0
>> client-to-client
>> ifconfig-pool-persist ipp.txt
>> client-config-dir ccd
>> keepalive 10 120
>> tls-auth vpn_my.key 0
>> tun-mtu 1500
>> tun-mtu-extra 32
>> mssfix 1200
>> duplicate-cn
>> comp-lzo
>> max-clients 100
>> persist-key
>> persist-tun
>> status openvpn-status.log
>> log        /var/log/openvpn.log
>> log-append /var/log/openvpn.log
>> verb 3
>>
>> On client in /etc/openvpn/ccd directory I've created a file "syscon9" with:
>> ifconfig-push 192.168.139.15 192.168.139.1
>
>Hmmm... 192.168.139.1 does not seem a remote netmask, isn't it ?
>man openvpn tell me the following for ifconfig-push:
>--ifconfig-push local remote-netmask
>
>so, put ifconfig-push 192.168.139.15 255.255.255.0 rather than the line
>above in the ccd directory.
>
>If it doesn't work, then please post the openvpn.log of the client.

I've tried it many time, it doesn't work with the netmaks. 
File: syscon9 from ccd:
cat syscon9
ifconfig-push  192.168.0.15 255.255.255.0

log file from the client:
cat /var/log/openvpn.log
Thu Feb 25 09:47:17 2010 OpenVPN 2.1_rc15 x86_64-pc-linux-gnu [SSL] [LZO2] [EPOLL] built on Jan 16 2010
Thu Feb 25 09:47:17 2010 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Thu Feb 25 09:47:17 2010 Control Channel Authentication: using '/etc/openvpn/client_clinic2/vpn_my.key' as a OpenVPN static key file
Thu Feb 25 09:47:17 2010 Outgoing Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Thu Feb 25 09:47:17 2010 Incoming Control Channel Authentication: Using 160 bit message hash 'SHA1' for HMAC authentication
Thu Feb 25 09:47:17 2010 LZO compression initialized
Thu Feb 25 09:47:17 2010 Control Channel MTU parms [ L:1574 D:166 EF:66 EB:0 ET:0 EL:0 ]
Thu Feb 25 09:47:17 2010 Data Channel MTU parms [ L:1574 D:1200 EF:42 EB:135 ET:32 EL:0 AF:3/1 ]
Thu Feb 25 09:47:17 2010 Local Options hash (VER=V4): 'ec497616'
Thu Feb 25 09:47:17 2010 Expected Remote Options hash (VER=V4): '7cd8ed90'
Thu Feb 25 09:47:17 2010 Socket Buffers: R=[114688->131072] S=[114688->131072]
Thu Feb 25 09:47:17 2010 UDPv4 link local: [undef]
Thu Feb 25 09:47:17 2010 UDPv4 link remote: 208.38.31.237:9000
Thu Feb 25 09:47:17 2010 TLS: Initial packet from 208.38.31.237:9000, sid=7d5fc404 0c60dcb5
Thu Feb 25 09:47:17 2010 VERIFY OK: depth=1, /C=US/ST=CA/L=SanFrancisco/O=Fort-Funston/CN=Fort-Funston_CA/emailAddress=me@myhost.mydomain
Thu Feb 25 09:47:17 2010 Validating certificate key usage
Thu Feb 25 09:47:17 2010 ++ Certificate has key usage  00a0, expects 00a0
Thu Feb 25 09:47:17 2010 VERIFY KU OK
Thu Feb 25 09:47:17 2010 Validating certificate extended key usage
Thu Feb 25 09:47:17 2010 ++ Certificate has EKU (str) TLS Web Server Authentication, expects TLS Web Server Authentication
Thu Feb 25 09:47:17 2010 VERIFY EKU OK
Thu Feb 25 09:47:17 2010 VERIFY OK: depth=0, /C=US/ST=CA/L=SanFrancisco/O=Fort-Funston/CN=server/emailAddress=me@myhost.mydomain
Thu Feb 25 09:47:18 2010 Data Channel Encrypt: Cipher 'BF-CBC' initialized with 128 bit key
Thu Feb 25 09:47:18 2010 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Thu Feb 25 09:47:18 2010 Data Channel Decrypt: Cipher 'BF-CBC' initialized with 128 bit key
Thu Feb 25 09:47:18 2010 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Thu Feb 25 09:47:18 2010 Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 1024 bit RSA
Thu Feb 25 09:47:18 2010 [server] Peer Connection Initiated with 208.38.31.237:9000
Thu Feb 25 09:47:19 2010 SENT CONTROL [server]: 'PUSH_REQUEST' (status=1)
Thu Feb 25 09:47:19 2010 PUSH: Received control message: 'PUSH_REPLY,route 192.168.139.0 255.255.255.0,topology net30,ping 10,ping-restart 120,ifconfig 
192.168.139.10 192.168.139.9'
Thu Feb 25 09:47:19 2010 OPTIONS IMPORT: timers and/or timeouts modified
Thu Feb 25 09:47:19 2010 OPTIONS IMPORT: --ifconfig/up options modified
Thu Feb 25 09:47:19 2010 OPTIONS IMPORT: route options modified
Thu Feb 25 09:47:19 2010 ROUTE default_gateway=10.0.0.1
Thu Feb 25 09:47:19 2010 TUN/TAP device tun0 opened
Thu Feb 25 09:47:19 2010 TUN/TAP TX queue length set to 100
Thu Feb 25 09:47:19 2010 /sbin/ifconfig tun0 192.168.139.10 pointopoint 192.168.139.9 mtu 1500
Thu Feb 25 09:47:19 2010 /etc/openvpn/up.sh tun0 1500 1574 192.168.139.10 192.168.139.9 init
Thu Feb 25 09:47:19 2010 /sbin/route add -net 192.168.139.0 netmask 255.255.255.0 gw 192.168.139.9
Thu Feb 25 09:47:19 2010 Initialization Sequence Completed

I got ip 192.168.139.10 not the 192.168.139.15 as requested in "ifconfig-push"

-- 
Joseph