ADVANTECH ICR-3200 Cellular Router Instruction Manual
ICR-3200
If checked, and a packet comes from the WAN interface, then the router forwards this packet
to the INPUT iptable chain. When the INPUT chain accepts the packet, and there is a rule
matching this packet with the Action set to allow, the router accepts the packet. The packet
is dropped if an INPUT rule is unavailable or the Action is set to deny. You can specify the
rules for IP addresses, protocols, and ports to allow or deny access to the router and internal
network behind the router. It is possible to specify up to sixteen rules when each rule can
be enabled/disabled by ticking the checkbox on the left of the rule row. Please note that the
incoming rules are applied to the WAN interface only. See Chapter 4.7.1 to see the priority
rules for the WAN interfaces. See Table 32 for the incoming definition table description.
Item
Description
Source
IP address the rule applies to. Use IPv4 address in IPv4 Firewall
Configuration and IPv6 address in IPv6 Firewall Configuration.
Protocol
Specifies the protocol the rule applies to:
• all – The rule applies to all protocols.
• TCP – The rule applies to TCP protocol.
• UDP – The rule applies to UDP protocol.
• GRE – The rule applies to GRE protocol.
• ESP – The rule applies to ESP protocol.
• ICMP/ICMPv6 – The rule applies to ICMP protocol. In IPv6
Firewall Configuration there is the ICMPv6 option.
Target Port(s)
Action
The port numbers range allowing access to the router. Enter the
initial and final port numbers separated by the hyphen mark. One
static port is allowed as well.
Specifies the rule – the type of action the router performs:
• allow – The router allows the packets to enter the network.
• deny – The router denies the packets from entering the net-
work.
Description
Description of the rule.
Table 32: Filtering of Incoming Packets
The next section of the configuration form specifies the forwarding firewall policy. If the
Enabled filtering of forwarded packets check box is unchecked, all incoming packets are ac-
cepted. If checked, and a packet is addressed to another network interface, then the router
forwards this packet to the FORWARD iptable chain. When the FORWARD chain accepts the
packet, and there is a rule for forwarding it, the router forwards the packet. If a forwarding rule
is unavailable, then the packet is dropped. It is possible to specify up to sixteen rules when
each rule can be enabled/disabled by ticking the checkbox on the left of the rule row. The for-
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| General | Details |
|---|---|
| Name | ADVANTECH ICR-3200 Cellular Router Instruction Manual |
| Make | Advantech |
| Language | English |
| Filetype | PDF (Download) |
| File size | 3.17 MB |
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