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티스토리 뷰

3DES
Tripple DES is much more secure than normal DES

AES

Automatic IPSec

DES
DES is one of the crypto algorithms used by Halon

DHCP
Dynamic Host Configuration Protocol, distributes IP addresses to clients as they connect to the network, unlike static IP-addresses, where the client already know what IP it will use.

DNS
Domain Name System resolves hostnames to ip-addresses.

Gateway

HEX
Is a number system from 0-F (A=10,B=11,C=12,D=13,E=14,F=15).

ICMP

ICMP Code
The ICMP Code extends the ICMP Type as it sets a "return code" for the packet, eg. Type:3 Code:1 means that "the destination is unreachable because (and it's here the code comes in) the host is unreachable. See ICMP Type.

ICMP Type
A ICMP Type defines the type of ICMP packet being sent, eg. Type:3 are "Destination Unreachable", Type:0 is a ICMP Reply and a Type:6 is a ICMP Request.

ICMPv6

IP

IPSec

IPv4
See IP.

IPv6
IPv6 works similar to IP, but the address-space is much bigger and the address is made by 8 semicolon separated HEX-string from 00 to FF. like F0:FF:12:00:DA:45:11:31.

MAC

MTU
Maximum Transmission Unit specifies the largest size for a datagram that will be passed through the firewall.

Manual IPSec

Mobile IPSec

Network Types
You can optimize your network for you type of connects, normal suites any type of network, high-latency are good for satellite connections, aggressive are for highly access firewall as it drops old states quickly while conservative hold on to old states for as long as possible.

PPS
Pings for second, sets the maximums pings the firewall will respond to, this is a good protection for ping attacks.

PPTP

QoS
QoS stands for Quality of Service, it enables you to set the (QoS) Priority and amount of (QoS) Bandwidth different services will be using.

QoS Bandwidth

QoS Bandwidth Default
Sets the default bandwidth for that interface, to be used when there is no available queues for the matching firewall policy.

QoS Bandwidth Maximum
Sets the maximum bandwidth for that interface.

QoS Borrow

QoS ECN
Explicit Congestion Notification, which implies (QoS) RED, tells compatible clients to hold back traffic as the queue length increases.

QoS Priority
Specifies the priority of a given queue, this is not the same as (QoS) Bandwidth, a higher Priority lets the packet jump ahead in the queue, so this doesn't affect the amount of packets, just the delay unlike (QoS) Bandwidth.

QoS RED
Random Early Detection avoids network congestion.

RIJNDAEL

TCP Destination Port
This is the port the packet have for its destination. eg. port 80 for a http server.

TCP Forward Port
The port the packet will be forwarded to, this gives you the possibility to have different internal and external ports and a service. This only applies to packet forwards.

TCP Source Port
This is the port the packet comes from, this is often on the client side a random port from 1024 to 65535.

Timeout Frags
Sets the time until unassembled fragment expires.

Timeout Interval
How often the firewall will clean up packet fragments and expired states.

Timeout Source Track
The seconds to keep a source tracking entry in memory after the last state expires.

VLAN

VLAN Tag

VPN
Virtual Private Network enables clients to dial-in to a already existing network from a remote place making himself a part of the network.
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