I tried to ping the IP address of the client which was assigned by VPN which is 1.2.3.6
Client log:
Thu Oct 16 03:37:22 2014 OpenVPN 2.3.4 i686-w64-mingw32 [SSL (OpenSSL)] [LZO] [PKCS11] [IPv6] built on Aug 7 2014
Thu Oct 16 03:37:22 2014 library versions: OpenSSL 1.0.1i 6 Aug 2014, LZO 2.05
Thu Oct 16 03:37:22 2014 MANAGEMENT: TCP Socket listening on [AF_INET]127.0.0.1:25340
Thu Oct 16 03:37:22 2014 Need hold release from management interface, waiting...
Thu Oct 16 03:37:22 2014 MANAGEMENT: Client connected from [AF_INET]127.0.0.1:25340
Thu Oct 16 03:37:23 2014 MANAGEMENT: CMD 'state on'
Thu Oct 16 03:37:23 2014 MANAGEMENT: CMD 'log all on'
Thu Oct 16 03:37:23 2014 MANAGEMENT: CMD 'hold off'
Thu Oct 16 03:37:23 2014 MANAGEMENT: CMD 'hold release'
Thu Oct 16 03:37:36 2014 MANAGEMENT: CMD 'username "Auth" "vpnuser1"'
Thu Oct 16 03:37:36 2014 MANAGEMENT: CMD 'password [...]'
Thu Oct 16 03:37:36 2014 WARNING: No server certificate verification method has been enabled. See http://openvpn.net/howto.html#mitm for more info.
Thu Oct 16 03:37:37 2014 Socket Buffers: R=[8192->8192] S=[8192->8192]
Thu Oct 16 03:37:37 2014 UDPv4 link local: [undef]
Thu Oct 16 03:37:37 2014 UDPv4 link remote: [AF_INET]192.227.x.x:1194
Thu Oct 16 03:37:37 2014 MANAGEMENT: >STATE:1413455857,WAIT,,,
Thu Oct 16 03:37:37 2014 MANAGEMENT: >STATE:1413455857,AUTH,,,
Thu Oct 16 03:37:37 2014 TLS: Initial packet from [AF_INET]192.227.x.x:1194, sid=79454be2 aea55e90
Thu Oct 16 03:37:37 2014 WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
Thu Oct 16 03:37:38 2014 VERIFY OK: depth=1, C=MY, ST=CA, L=SanFrancisco, O=UKM, OU=FTSM, CN=iinetwork.org, name=Akram, emailAddress=kargar2013@gmail.com
Thu Oct 16 03:37:38 2014 VERIFY OK: depth=0, C=MY, ST=CA, L=SanFrancisco, O=UKM, OU=FTSM, CN=iinetwork.org, name=Akram, emailAddress=kargar2013@gmail.com
Thu Oct 16 03:37:38 2014 Data Channel Encrypt: Cipher 'BF-CBC' initialized with 128 bit key
Thu Oct 16 03:37:38 2014 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Thu Oct 16 03:37:38 2014 Data Channel Decrypt: Cipher 'BF-CBC' initialized with 128 bit key
Thu Oct 16 03:37:38 2014 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Thu Oct 16 03:37:39 2014 Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 1024 bit RSA
Thu Oct 16 03:37:39 2014 [iinetwork.org] Peer Connection Initiated with [AF_INET]192.227.165.153:1194
Thu Oct 16 03:37:40 2014 MANAGEMENT: >STATE:1413455860,GET_CONFIG,,,
Thu Oct 16 03:37:41 2014 SENT CONTROL [iinetwork.org]: 'PUSH_REQUEST' (status=1)
Thu Oct 16 03:37:41 2014 PUSH: Received control message: 'PUSH_REPLY,redirect-gateway def1,route 1.2.3.0 255.255.255.0,dhcp-option DNS 8.8.8.8,dhcp-option DNS 8.8.4.4,route 1.2.3.1,topology net30,ping 5,ping-restart 30,ifconfig 1.2.3.6 1.2.3.5'
Thu Oct 16 03:37:41 2014 OPTIONS IMPORT: timers and/or timeouts modified
Thu Oct 16 03:37:41 2014 OPTIONS IMPORT: --ifconfig/up options modified
Thu Oct 16 03:37:41 2014 OPTIONS IMPORT: route options modified
Thu Oct 16 03:37:41 2014 OPTIONS IMPORT: --ip-win32 and/or --dhcp-option options modified
Thu Oct 16 03:37:41 2014 do_ifconfig, tt->ipv6=0, tt->did_ifconfig_ipv6_setup=0
Thu Oct 16 03:37:41 2014 MANAGEMENT: >STATE:1413455861,ASSIGN_IP,,1.2.3.6,
Thu Oct 16 03:37:41 2014 open_tun, tt->ipv6=0
Thu Oct 16 03:37:41 2014 TAP-WIN32 device [Local Area Connection 3] opened: \\.\Global\{E93D8523-1486-4303-9959-478DA6469597}.tap
Thu Oct 16 03:37:41 2014 TAP-Windows Driver Version 9.9
Thu Oct 16 03:37:41 2014 Notified TAP-Windows driver to set a DHCP IP/netmask of 1.2.3.6/255.255.255.252 on interface {E93D8523-1486-4303-9959-478DA6469597} [DHCP-serv: 1.2.3.5, lease-time: 31536000]
Thu Oct 16 03:37:41 2014 Successful ARP Flush on interface [17] {E93D8523-1486-4303-9959-478DA6469597}
Thu Oct 16 03:37:46 2014 TEST ROUTES: 3/3 succeeded len=2 ret=1 a=0 u/d=up
Thu Oct 16 03:37:46 2014 C:\Windows\system32\route.exe ADD 192.227.x.x MASK 255.255.255.255 192.168.0.1
Thu Oct 16 03:37:46 2014 ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=25 and dwForwardType=4
Thu Oct 16 03:37:46 2014 Route addition via IPAPI succeeded [adaptive]
Thu Oct 16 03:37:46 2014 C:\Windows\system32\route.exe ADD 0.0.0.0 MASK 128.0.0.0 1.2.3.5
Thu Oct 16 03:37:46 2014 ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=30 and dwForwardType=4
Thu Oct 16 03:37:46 2014 Route addition via IPAPI succeeded [adaptive]
Thu Oct 16 03:37:46 2014 C:\Windows\system32\route.exe ADD 128.0.0.0 MASK 128.0.0.0 1.2.3.5
Thu Oct 16 03:37:46 2014 ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=30 and dwForwardType=4
Thu Oct 16 03:37:46 2014 Route addition via IPAPI succeeded [adaptive]
Thu Oct 16 03:37:46 2014 MANAGEMENT: >STATE:1413455866,ADD_ROUTES,,,
Thu Oct 16 03:37:46 2014 C:\Windows\system32\route.exe ADD 1.2.3.0 MASK 255.255.255.0 1.2.3.5
Thu Oct 16 03:37:46 2014 ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=30 and dwForwardType=4
Thu Oct 16 03:37:46 2014 Route addition via IPAPI succeeded [adaptive]
Thu Oct 16 03:37:46 2014 C:\Windows\system32\route.exe ADD 1.2.3.1 MASK 255.255.255.255 1.2.3.5
Thu Oct 16 03:37:46 2014 ROUTE: CreateIpForwardEntry succeeded with dwForwardMetric1=30 and dwForwardType=4
Thu Oct 16 03:37:46 2014 Route addition via IPAPI succeeded [adaptive]
Thu Oct 16 03:37:46 2014 Initialization Sequence Completed
Thu Oct 16 03:37:46 2014 MANAGEMENT: >STATE:1413455866,CONNECTED,SUCCESS,1.2.3.6,192.227.x.x