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この文書の現在のバージョンと選択したバージョンの差分を表示します。

--- mae3xx_tips:setup_openvpn:setup_client:start [2019/02/25 16:34]
admin
+++ mae3xx_tips:setup_openvpn:setup_client:start [2019/02/25 16:46] (現在)
admin
@@ ライン 1: / ライン 1: @@
-====== クライアント側の設定 ======
+====== クライアント側の作業 ======
-===== 鍵ファイル類のコピー =====
+===== 設定 =====
+==== 鍵ファイル類のコピー ====
 [[mae3xx_tips:setup_openvpn:setup_server:start|]] で生成した、ca.crt およびクライアント用の **client**.crt, **client**.key ファイルをセキュアな手段で MA-E3xx に持ってきます。
@@ ライン 25: / ライン 27: @@
 \\
-===== 設定ファイルの作成 =====
+==== 設定ファイルの作成 ====
 OpenVPN クライアント用の設定ファイルを作成します。
@@ ライン 159: / ライン 161: @@
 \\
+===== 起動 =====
+設定変更を systemd に通知するため、"systemctl daemon-reload" を行ってから起動します。
+<code>
+root@plum:~# systemctl daemon-reload
+root@plum:~# systemctl start openvpn
+</code>
+\\
+設定がきちんとできていれば、tun0 I/F が up して通信ができるようになります。
+<code>
+root@plum:~# ifconfig tun0
+tun0: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1500
+        inet 10.8.0.6  netmask 255.255.255.255  destination 10.8.0.5
+        inet6 fe80::7031:7640:14c0:272  prefixlen 64  scopeid 0x20<link>
+        unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 100  (UNSPEC)
+        RX packets 0  bytes 0 (0.0 B)
+        RX errors 0  dropped 0  overruns 0  frame 0
+        TX packets 4  bytes 304 (304.0 B)
+        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
+</code>
+\\
+syslog には下記のように出力されます。
+<code>
+Feb 25 16:36:42 plum systemd[1]: Starting OpenVPN service...
+Feb 25 16:36:42 plum systemd[1]: Started OpenVPN service.
+Feb 25 16:36:42 plum ovpn-client[1328]: OpenVPN 2.4.4 arm-unknown-linux-gnueabihf [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Sep  5 2018
+Feb 25 16:36:42 plum ovpn-client[1328]: library versions: OpenSSL 1.1.0g  2 Nov 2017, LZO 2.08
+Feb 25 16:36:42 plum systemd[1]: Started OpenVPN connection to client.
+Feb 25 16:36:42 plum ovpn-client[1328]: WARNING: No server certificate verification method has been enabled.  See http://openvpn.net/howto.html#mitm for more info.
+Feb 25 16:36:42 plum ovpn-client[1328]: TCP/UDP: Preserving recently used remote address: [AF_INET]xxx.xxx.xxx.xxx:1194
+Feb 25 16:36:42 plum ovpn-client[1328]: Socket Buffers: R=[163840->163840] S=[163840->163840]
+Feb 25 16:36:42 plum ovpn-client[1328]: UDP link local: (not bound)
+Feb 25 16:36:42 plum ovpn-client[1328]: UDP link remote: [AF_INET]xxx.xxx.xxx.xxx:1194
+Feb 25 16:36:44 plum ovpn-client[1328]: TLS: Initial packet from [AF_INET]xxx.xxx.xxx.xxx:1194, sid=3dac9839 d72b77f5
+Feb 25 16:36:44 plum ovpn-client[1328]: VERIFY OK: depth=1, C=JP, ST=Tokyo, L=Musashino-shi, O=Century Systems, OU=SW4, CN=Century Systems CA, name=EasyRSA, emailAddress=kikuchi@centurysys.co.jp
+Feb 25 16:36:44 plum ovpn-client[1328]: VERIFY OK: depth=0, C=JP, ST=Tokyo, L=Musashino-shi, O=Century Systems, OU=SW4, CN=server, name=EasyRSA, emailAddress=kikuchi@centurysys.co.jp
+Feb 25 16:36:44 plum ovpn-client[1328]: WARNING: 'link-mtu' is used inconsistently, local='link-mtu 1546', remote='link-mtu 1562'
+Feb 25 16:36:44 plum ovpn-client[1328]: WARNING: 'cipher' is used inconsistently, local='cipher BF-CBC', remote='cipher AES-256-CBC'
+Feb 25 16:36:44 plum ovpn-client[1328]: WARNING: 'keysize' is used inconsistently, local='keysize 128', remote='keysize 256'
+Feb 25 16:36:44 plum ovpn-client[1328]: Control Channel: TLSv1.2, cipher TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384, 2048 bit RSA
+Feb 25 16:36:44 plum ovpn-client[1328]: [server] Peer Connection Initiated with [AF_INET]xxx.xxx.xxx.xxx:1194
+Feb 25 16:36:46 plum ovpn-client[1328]: SENT CONTROL [server]: 'PUSH_REQUEST' (status=1)
+Feb 25 16:36:46 plum ovpn-client[1328]: PUSH: Received control message: 'PUSH_REPLY,route 10.8.0.1,topology net30,ping 10,ping-restart 120,ifconfig 10.8.0.6 10.8.0.5,peer-id 0,cipher AES-256-GCM'
+Feb 25 16:36:46 plum ovpn-client[1328]: OPTIONS IMPORT: timers and/or timeouts modified
+Feb 25 16:36:46 plum ovpn-client[1328]: OPTIONS IMPORT: --ifconfig/up options modified
+Feb 25 16:36:46 plum ovpn-client[1328]: OPTIONS IMPORT: route options modified
+Feb 25 16:36:46 plum ovpn-client[1328]: OPTIONS IMPORT: peer-id set
+Feb 25 16:36:46 plum ovpn-client[1328]: OPTIONS IMPORT: adjusting link_mtu to 1629
+Feb 25 16:36:46 plum ovpn-client[1328]: OPTIONS IMPORT: data channel crypto options modified
+Feb 25 16:36:46 plum ovpn-client[1328]: Data Channel: using negotiated cipher 'AES-256-GCM'
+Feb 25 16:36:46 plum ovpn-client[1328]: Outgoing Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
+Feb 25 16:36:46 plum ovpn-client[1328]: Incoming Data Channel: Cipher 'AES-256-GCM' initialized with 256 bit key
+Feb 25 16:36:46 plum systemd-udevd[1330]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable.
+Feb 25 16:36:46 plum ovpn-client[1328]: ROUTE_GATEWAY ON_LINK IFACE=ppp0 HWADDR=00:00:00:00:00:00
+Feb 25 16:36:46 plum ovpn-client[1328]: TUN/TAP device tun0 opened
+Feb 25 16:36:46 plum ovpn-client[1328]: TUN/TAP TX queue length set to 100
+Feb 25 16:36:46 plum ovpn-client[1328]: do_ifconfig, tt->did_ifconfig_ipv6_setup=0
+Feb 25 16:36:46 plum ovpn-client[1328]: /sbin/ip link set dev tun0 up mtu 1500
+Feb 25 16:36:46 plum ovpn-client[1328]: /sbin/ip addr add dev tun0 local 10.8.0.6 peer 10.8.0.5
+Feb 25 16:36:46 plum ovpn-client[1328]: /sbin/ip route add 10.8.0.1/32 via 10.8.0.5
+Feb 25 16:36:46 plum ovpn-client[1328]: WARNING: this configuration may cache passwords in memory -- use the auth-nocache option to prevent this
+Feb 25 16:36:46 plum ovpn-client[1328]: Initialization Sequence Completed
+</code>
+\\
+===== 確認 =====
+ping で確認してみます。
+<code>
+root@plum:~# ping -c 5 10.8.0.1
+PING 10.8.0.1 (10.8.0.1) 56(84) bytes of data.
+bytes from 10.8.0.1: icmp_seq=1 ttl=64 time=481 ms
+bytes from 10.8.0.1: icmp_seq=2 ttl=64 time=501 ms
+bytes from 10.8.0.1: icmp_seq=3 ttl=64 time=480 ms
+bytes from 10.8.0.1: icmp_seq=4 ttl=64 time=499 ms
+bytes from 10.8.0.1: icmp_seq=5 ttl=64 time=530 ms
+--- 10.8.0.1 ping statistics ---
+packets transmitted, 5 received, 0% packet loss, time 4001ms
+rtt min/avg/max/mdev = 480.386/498.706/530.023/18.034 ms
+</code>

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