we deployed 1.9.0 on our network successfully on each router but on the uplink we have problems with openvpn client. without changing settings, reverting back to 1.8.5 the openvpn client works again.
were there some changes from 1.8.5 to 1.9.0 that could affect the openvpn client?
NOT working openvpn on 1.9.0: log: Aug 11 00:56:52 mh-router openvpn[2207]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts Aug 11 00:56:52 mh-router openvpn[2207]: ******* WARNING *******: all encryption and authentication features disabled -- all data will be tunnelled as cleartext Aug 11 00:56:52 mh-router openvpn[2207]: Socket Buffers: R=[180224->131072] S=[180224->131072] Aug 11 00:56:52 mh-router openvpn[2207]: Data Channel MTU parms [ L:1532 D:1450 EF:0 EB:4 ET:32 EL:0 ] Aug 11 00:56:52 mh-router openvpn[2207]: Local Options String: 'V4,dev-type tap,link-mtu 1532,tun-mtu 1532,proto UDPv4' Aug 11 00:56:52 mh-router openvpn[2207]: Expected Remote Options String: 'V4,dev-type tap,link-mtu 1532,tun-mtu 1532,proto UDPv4' Aug 11 00:56:52 mh-router openvpn[2207]: Local Options hash (VER=V4): '81fa4469' Aug 11 00:56:52 mh-router openvpn[2207]: Expected Remote Options hash (VER=V4): '81fa4469' Aug 11 00:56:52 mh-router openvpn[2207]: UDPv4 link local (bound): [AF_INET]86.59.13.170:5001 Aug 11 00:56:52 mh-router openvpn[2207]: UDPv4 link remote: [AF_INET]78.41.115.228:5001 tcpdump: 00:57:34.063143 44:d9:e7:ff:71:91 > 00:15:2c:c8:30:00, ethertype IPv4 (0x0800), length 59: 86.59.13.170.5001 > 78.41.115.228.5001: UDP, length 17 00:57:44.593232 44:d9:e7:ff:71:91 > 00:15:2c:c8:30:00, ethertype IPv4 (0x0800), length 59: 86.59.13.170.5001 > 78.41.115.228.5001: UDP, length 17 00:58:06.855101 44:d9:e7:ff:71:91 > 00:15:2c:c8:30:00, ethertype IPv4 (0x0800), length 59: 86.59.13.170.5001 > 78.41.115.228.5001: UDP, length 17 ----------------------- WORKING openvpn on 1.8.5: log: Aug 11 01:00:59 mh-router openvpn[2198]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts Aug 11 01:00:59 mh-router openvpn[2198]: ******* WARNING *******: all encryption and authentication features disabled -- all data will be tunnelled as cleartext Aug 11 01:00:59 mh-router openvpn[2198]: LZO compression initialized Aug 11 01:00:59 mh-router openvpn[2198]: Socket Buffers: R=[180224->131072] S=[180224->131072] Aug 11 01:00:59 mh-router openvpn[2198]: Data Channel MTU parms [ L:1533 D:1450 EF:1 EB:135 ET:32 EL:0 AF:14/1 ] Aug 11 01:00:59 mh-router openvpn[2198]: Local Options String: 'V4,dev-type tap,link-mtu 1533,tun-mtu 1532,proto UDPv4,comp-lzo' Aug 11 01:00:59 mh-router openvpn[2198]: Expected Remote Options String: 'V4,dev-type tap,link-mtu 1533,tun-mtu 1532,proto UDPv4,comp-lzo' Aug 11 01:00:59 mh-router openvpn[2198]: Local Options hash (VER=V4): 'daf065b5' Aug 11 01:00:59 mh-router openvpn[2198]: Expected Remote Options hash (VER=V4): 'daf065b5' Aug 11 01:00:59 mh-router openvpn[2199]: UDPv4 link local (bound): [AF_INET]86.59.13.170:5001 Aug 11 01:00:59 mh-router openvpn[2199]: UDPv4 link remote: [AF_INET]78.41.115.228:5001 Aug 11 01:01:09 mh-router openvpn[2199]: Peer Connection Initiated with [AF_INET]78.41.115.228:5001 Aug 11 01:01:10 mh-router openvpn[2199]: TUN/TAP device vtun0 opened Aug 11 01:01:10 mh-router openvpn[2199]: TUN/TAP TX queue length set to 100 Aug 11 01:01:10 mh-router openvpn[2199]: /config/user-data/ovpn0xffup vtun0 1500 1533 init Aug 11 01:01:11 mh-router openvpn[2199]: Initialization Sequence Completed tcpdump: 01:03:44.117484 00:15:2c:c8:30:00 > 44:d9:e7:ff:71:91, ethertype IPv4 (0x0800), length 585: 78.41.115.228.5001 > 86.59.13.170.5001: UDP, length 543 01:03:44.120935 00:15:2c:c8:30:00 > 44:d9:e7:ff:71:91, ethertype IPv4 (0x0800), length 209: 78.41.115.228.5001 > 86.59.13.170.5001: UDP, length 167 01:03:44.120953 00:15:2c:c8:30:00 > 44:d9:e7:ff:71:91, ethertype IPv4 (0x0800), length 1435: 78.41.115.228.5001 > 86.59.13.170.5001: UDP, length 1393 01:03:44.122770 44:d9:e7:ff:71:91 > 00:15:2c:c8:30:00, ethertype IPv4 (0x0800), length 170: 86.59.13.170.5001 > 78.41.115.228.5001: UDP, length 128 01:03:44.125304 00:15:2c:c8:30:00 > 44:d9:e7:ff:71:91, ethertype IPv4 (0x0800), length 194: 78.41.115.228.5001 > 86.59.13.170.5001: UDP, length 152