Table of contents
SCALANCE M875
8 Operating Instructions, 12/2012, C79000-G8976-C258-02
4.4 Local Network ............................................................................................................................. 49
4.4.1 Local interface............................................................................................................................. 49
4.4.2 Local IP addresses...................................................................................................................... 49
4.4.3 DHCP server on local network.................................................................................................... 51
4.4.4 Local hostname........................................................................................................................... 54
4.4.5 DNS server on local network....................................................................................................... 55
4.4.6 Additional Internal Routes........................................................................................................... 57
4.5 External Network......................................................................................................................... 58
4.5.1 External interface ........................................................................................................................ 58
4.5.2 UMTS/EDGE - access parameters ............................................................................................. 58
4.5.3 Installation mode - aligning antennas ......................................................................................... 64
4.5.4 Traffic volume supervision .......................................................................................................... 65
4.5.5 Checking the connection - Connection monitoring ..................................................................... 68
4.5.6 Hostname by DynDNS................................................................................................................ 71
4.5.7 SRS - Siemens Remote Service................................................................................................. 73
4.5.8 NAT - Network Address Translation ........................................................................................... 75
4.6 Security ....................................................................................................................................... 76
4.6.1 Firewall rules ............................................................................................................................... 76
4.6.2 Port Forwarding........................................................................................................................... 81
4.6.3 Advanced security functions ....................................................................................................... 83
4.6.4 Firewall Log................................................................................................................................. 84
4.7 IPsec VPN - Virtual Private Network........................................................................................... 85
4.7.1 Explanation of VPN connections................................................................................................. 85
4.7.2 Connections - Roadwarrior mode ............................................................................................... 89
4.7.2.1 Creating connections .................................................................................................................. 89
4.7.2.2 Editing connections ..................................................................................................................... 90
4.7.2.3 IKE settings ................................................................................................................................. 91
4.7.3 Connections - Standard mode .................................................................................................... 95
4.7.3.1 Creating connections .................................................................................................................. 95
4.7.3.2 Editing connections ..................................................................................................................... 96
4.7.3.3 IKE settings ................................................................................................................................. 99
4.7.3.4 Firewall rules for VPN tunnel..................................................................................................... 103
4.7.4 Managing certificates and keys................................................................................................. 105
4.7.5 Supervision of the VPN connections......................................................................................... 106
4.7.6 Advanced settings..................................................................................................................... 109
4.7.7 Status ........................................................................................................................................ 111
4.8 Remote access ......................................................................................................................... 112
4.8.1 Changing the password ............................................................................................................ 112
4.8.2 HTTPS....................................................................................................................................... 113
4.8.3 CSD........................................................................................................................................... 115
4.9 SMS........................................................................................................................................... 116
4.9.1 Service Center (SMSC)............................................................................................................. 116
4.9.2 Alarm SMS ................................................................................................................................ 116
4.9.3 Sending SMS over IP messages from the local area network.................................................. 118
4.10 SNMP........................................................................................................................................ 121
4.10.1 Settings ..................................................................................................................................... 121
4.10.2 SNMP traps............................................................................................................................... 124
