RuggedCom RuggedRouter RX1100 - Manual (Page 6)

RuggedRouter®
Revision 1.14.3 6 RX1000/RX1100™
12.2.7. Modem PPP Connection Logs ......................................................................... 109
12.2.8. Current Routes & Interface Table .................................................................... 109
13. Configuring PPP And The Cellular Modem ........................................................................... 110
13.1. Introduction ................................................................................................................ 110
13.1.1. PPP and Cellular Modem Fundamentals ......................................................... 110
13.2. PPP Cellular Modem Configuration ............................................................................ 111
13.2.1. Cellular Modem Account Activation ................................................................ 112
13.2.2. Cellular Modem Configuration .......................................................................... 113
13.2.3. Modem PPP Client Connections ...................................................................... 116
13.2.4. Modem PPP Client ........................................................................................... 117
13.2.5. PPP Logs, PPP Connection Logs .................................................................... 117
13.2.6. Current Route and Interfaces Table ................................................................. 117
14. Configuring The Firewall ........................................................................................................ 118
14.1. Introduction .................................................................................................................. 118
14.2. Firewall Fundamentals ................................................................................................ 118
14.2.1. Stateless vs Stateful Firewalls ......................................................................... 118
14.2.2. Linux® netfilter, iptables And The Shoreline Firewall ....................................... 118
14.2.3. Network Address Translation ........................................................................... 119
14.2.4. Port Forwarding ................................................................................................ 119
14.3. Shorewall Quick Setup ................................................................................................ 120
14.4. ShoreWall Terminology And Concepts ....................................................................... 121
14.4.1. Zones ................................................................................................................ 121
14.4.2. Interfaces .......................................................................................................... 121
14.4.3. Hosts ................................................................................................................ 122
14.4.4. Policy ................................................................................................................ 122
14.4.5. Masquerading And SNAT ................................................................................ 123
14.4.6. Rules ................................................................................................................ 124
14.5. Configuring The Firewall And VPN ............................................................................. 125
14.5.1. Policy Based Virtual Private Networking .......................................................... 125
14.5.2. Virtual Private Networking To A DMZ .............................................................. 126
14.6. Firewall Configuration ................................................................................................. 126
14.6.1. Network Zones ................................................................................................. 128
14.6.2. Network Interfaces ........................................................................................... 129
14.6.3. Network Zone Hosts ......................................................................................... 131
14.6.4. Default Policies ................................................................................................. 131
14.6.5. Masquerading ................................................................................................... 132
14.6.6. Firewall Rules ................................................................................................... 133
14.6.7. Static NAT ........................................................................................................ 134
14.6.8. TC (Traffic Control) Interfaces, Classes, and Rules ......................................... 135
14.6.9. Actions When Stopped ..................................................................................... 135
15. Traffic Control ....................................................................................................................... 137
15.1. Traffic Control (TC) Fundamentals ............................................................................ 137
15.1.1. Traffic Control Example .................................................................................... 137
15.2. Traffic Control Configuration ....................................................................................... 138
15.2.1. TC Interfaces (tcdevices) ................................................................................. 138
15.2.2. TC Classes ....................................................................................................... 139
15.2.3. TC Rules .......................................................................................................... 141
16. Configuring IPsec VPN ......................................................................................................... 144
16.1. Introduction .................................................................................................................. 144