Quick links:
Product Overview
Installation
Settings and Administration
ADSL
SIP Support
Telephone ports
Network
Firewall
Wireless
VPN
Misc
Licenses
Troubleshooting
Differences
This shows you the differences between two versions of the page.
|
web_gui:advanced_network_configuration [2010/11/09 15:52] mats |
web_gui:advanced_network_configuration [2010/12/14 16:43] (current) mats |
||
|---|---|---|---|
| Line 7: | Line 7: | ||
| ==== Add routes ==== | ==== Add routes ==== | ||
| + | {{ :web_gui:advanced_network_configuration.png?300|Advanced Network Configuration in rel 5.30}} | ||
| + | |||
| Static additions to the unit's [[wp>Routing_table|routing table]]. | Static additions to the unit's [[wp>Routing_table|routing table]]. | ||
| Use this, for example, to make a routed subnet reachable through the unit. For an 'interface route', enter '0.0.0.0' in the "Gateway" field (or leave empty) and select the interface (under "Type"). The default gateway ("Destination" = 0.0.0.0) should not be entered here, but on the [[Network page|main network page]]. | Use this, for example, to make a routed subnet reachable through the unit. For an 'interface route', enter '0.0.0.0' in the "Gateway" field (or leave empty) and select the interface (under "Type"). The default gateway ("Destination" = 0.0.0.0) should not be entered here, but on the [[Network page|main network page]]. | ||
| Line 26: | Line 28: | ||
| By setting the WAN interface on a manual faked IP address the router can be made not to interfer - the router will become an ordinary bridged (not firewalled) modem and the ET1-ET3 are not really used. [[wp>IEEE_802.1D|802.1D bridge]] | By setting the WAN interface on a manual faked IP address the router can be made not to interfer - the router will become an ordinary bridged (not firewalled) modem and the ET1-ET3 are not really used. [[wp>IEEE_802.1D|802.1D bridge]] | ||
| - | The mode ** Bridge: WAN and host on ET4 share the same IP address ** could be used in cases where the router should act upon some traffic (e.g. SIP in a [[network:operational_modes|"WAN SIParator 1"]]) but the rest should be bridged right through. | + | {{:web_gui:bridge_8021.jpg|}} |
| + | |||
| + | The operating mode [[network:operational_modes#WAN SIParator 2|"WAN SIParator 2"]] makes use of this kind of bridge. | ||
| + | |||
| + | The mode ** Bridge: WAN and host on ET4 share the same IP address ** could be used in cases where the router should act upon some traffic (e.g. SIP in a [[network:operational_modes#WAN SIParator 1|"WAN SIParator 1"]]) but the rest should be bridged right through. | ||
| And where the router is not allowed to have a public IP address of its own. | And where the router is not allowed to have a public IP address of its own. | ||
| The IP address is owned by the host on ET4 (the router not answering to ARP requests). | The IP address is owned by the host on ET4 (the router not answering to ARP requests). | ||
| Line 56: | Line 62: | ||
| ** "Poisoned reverse" flag in RFC1058 ** See the "Split horizon" section (2.2.1) in [[http://tools.ietf.org/html/rfc1058|RFC1058]]. | ** "Poisoned reverse" flag in RFC1058 ** See the "Split horizon" section (2.2.1) in [[http://tools.ietf.org/html/rfc1058|RFC1058]]. | ||
| + | |||
| + | ==== NAT ports usage ==== | ||
| + | |||
| + | To perform NAT (Network Address Translation), source port numbers on outgoing packets are modified. | ||
| + | These numbers are selected from a pool of non-well-known port numbers. | ||
| + | This port number range can be configured by the fields **Port start number** and **Pool size**. | ||
| + | The default values should not be changed other than possibly in the [[network:operational_modes#WAN SIParator 1|"WAN SIParator 1"]] (single address [[advanced_network_configuration#Bridge (802.1D) WAN to ET4|802.1D bridge]]) mode, where there is a risk of conflicts with another router/firewall also doing NAT. [[wp>Network_address_translation|NAT]] [[wp>Port_address_translation|PAT]] | ||
| + | |||
| ===== Extra WAN Interfaces ===== | ===== Extra WAN Interfaces ===== | ||
