openvpn 'RTNETLINK answers: File exists'

[inoyon]

Hall alle zusammen,

bin nicht so der Netzwerkkenner, konnte aber OpenVPN auf meinem server einrichten. Der Server meldet keinen Fehler. Der client meldet beim Verbindungsaufbau den folgenden Fehler:

Code: Alles auswählen

Fri Dec 19 08:34:10 2014 OpenVPN 2.3.2 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [EPOLL] [PKCS11] [eurephia] [MH] [IPv6] built on Dec  1 2014
Fri Dec 19 08:34:10 2014 Socket Buffers: R=[212992->131072] S=[212992->131072]
Fri Dec 19 08:34:10 2014 UDPv4 link local: [undef]
Fri Dec 19 08:34:10 2014 UDPv4 link remote: [AF_INET]111.111.111.111:1194
Fri Dec 19 08:34:10 2014 TLS: Initial packet from [AF_INET]111.111.111.111:1194, sid=b0401370 b95591bd
Fri Dec 19 08:34:11 2014 VERIFY OK: depth=1, C=CH, ST=BS, L=Stadt, O=name, OU=changeme, CN=111.111.111.111, name=changeme, emailAddress=mail@host.domain
Fri Dec 19 08:34:11 2014 VERIFY OK: nsCertType=SERVER
Fri Dec 19 08:34:11 2014 VERIFY OK: depth=0, C=CH, ST=BS, L=Stadt, O=name, OU=changeme, CN=111.111.111.111, name=changeme, emailAddress=mail@host.domain
Fri Dec 19 08:34:12 2014 Data Channel Encrypt: Cipher 'BF-CBC' initialized with 128 bit key
Fri Dec 19 08:34:12 2014 Data Channel Encrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Fri Dec 19 08:34:12 2014 Data Channel Decrypt: Cipher 'BF-CBC' initialized with 128 bit key
Fri Dec 19 08:34:12 2014 Data Channel Decrypt: Using 160 bit message hash 'SHA1' for HMAC authentication
Fri Dec 19 08:34:12 2014 Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 4096 bit RSA
Fri Dec 19 08:34:12 2014 [111.111.111.111] Peer Connection Initiated with [AF_INET]111.111.111.111:1194
Fri Dec 19 08:34:15 2014 SENT CONTROL [111.111.111.111]: 'PUSH_REQUEST' (status=1)
Fri Dec 19 08:34:15 2014 PUSH: Received control message: 'PUSH_REPLY,redirect-gateway def1 bypass-dhcp,dhcp-option DNS 208.67.222.222,dhcp-option DNS 208.67.220.220,route 10.8.0.1,topology net30,ping 10,ping-restart 120,ifconfig 10.8.0.6 10.8.0.5'
Fri Dec 19 08:34:15 2014 OPTIONS IMPORT: timers and/or timeouts modified
Fri Dec 19 08:34:15 2014 OPTIONS IMPORT: --ifconfig/up options modified
Fri Dec 19 08:34:15 2014 OPTIONS IMPORT: route options modified
Fri Dec 19 08:34:15 2014 OPTIONS IMPORT: --ip-win32 and/or --dhcp-option options modified
Fri Dec 19 08:34:15 2014 ROUTE_GATEWAY 192.168.1.1/255.255.255.0 IFACE=wlan0 HWADDR=30:10:b3:d5:af:f3
Fri Dec 19 08:34:15 2014 TUN/TAP device tun1 opened
Fri Dec 19 08:34:15 2014 TUN/TAP TX queue length set to 100
Fri Dec 19 08:34:15 2014 do_ifconfig, tt->ipv6=0, tt->did_ifconfig_ipv6_setup=0
Fri Dec 19 08:34:15 2014 /sbin/ip link set dev tun1 up mtu 1500
Fri Dec 19 08:34:15 2014 /sbin/ip addr add dev tun1 local 10.8.0.6 peer 10.8.0.5
Fri Dec 19 08:34:15 2014 /sbin/ip route add 111.111.111.111/32 via 192.168.1.1
Fri Dec 19 08:34:15 2014 /sbin/ip route add 0.0.0.0/1 via 10.8.0.5
Fri Dec 19 08:34:15 2014 /sbin/ip route add 128.0.0.0/1 via 10.8.0.5
Fri Dec 19 08:34:15 2014 /sbin/ip route add 10.8.0.1/32 via 10.8.0.5
RTNETLINK answers: File exists
Fri Dec 19 08:34:15 2014 ERROR: Linux route add command failed: external program exited with error status: 2
Fri Dec 19 08:34:15 2014 Initialization Sequence Completed

Firewall serverseitig:

Code: Alles auswählen

iptables -A INPUT -i eth0 -m state --state NEW -p udp --dport 1194 -j ACCEPT
iptables -A INPUT -i tun+ -j ACCEPT
iptables -A FORWARD -i tun+ -j ACCEPT
iptables -A FORWARD -i tun+ -o eth0 -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -A FORWARD -i eth0 -o tun+ -m state --state RELATED,ESTABLISHED -j ACCEPT
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE

Ist es möglich, dass da was doppelt läuft und kollidiert..? Habe schon paar Threads dazu im Netz begutachtet, komme
dennoch nicht weiter... :/

Danke für jegliche Hinweise.
Beste Grüsse.