Ubiquiti EdgeRouter Инструкция по эксплуатации онлайн [25/57] 67411

Ubiquiti EdgeRouter Инструкция по эксплуатации онлайн [25/57] 67411
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Chapter 5: Security TabEdgeOS
User Guide
Ubiquiti Networks, Inc.
Copy Rule To create a duplicate, click Copy Rule. The
duplicate rule appears at the bottom of the list.
Delete Rule Remove the rule.
Add or Configure a Rule
The Rule Configuration for _ screen appears. You have five
tabs available:
Basic (see below)
Advanced (see the next column)
”Source” on page 23
”Destination” on page 23
”Time” on page 23
Basic
Description Enter keywords to describe this rule.
Enable Check the box to enable this rule.
Action Select the action for packets that match this
rule’s criteria.
- Drop Packets are blocked with no message.
- Reject Packets are blocked, and an ICMP (Internet
Control Message Protocol) message is sent saying the
destination is unreachable.
- Accept Packets are allowed.
Protocol
- All protocols Match packets of all protocols.
- TCP Match TCP packets.
- UDP Match UDP packets.
- Both TCP and UDP Match TCP and UDP packets.
- Choose a protocol by name Select the protocol from
the drop-down list. Match packets of this protocol.
Match all protocols except for this Match packets
of all protocols except for the selected protocol.
- Enter a protocol number Enter the port number of
the protocol. Match packets of this protocol.
Match all protocols except for this Match packets
of all protocols except for the selected protocol.
Logging Check this box to log instances when the rule
is matched.
Click Save to apply your changes, or click Cancel.
Advanced
State This describes the connection state of a packet.
- Established Match packets that are part of a two-way
connection.
- Invalid Match packets that cannot be identified.
- New Match packets creating a new connection.
- Related Match packets related to established
connections.
Recent Time Enter the number of seconds to monitor
for attempts to connect from the same source.
Recent Count Enter the number of times the same
source is detected within the Recent Time duration.
This helps thwart attacks using continual attempts to
connect.
IPsec IPsec (Internet Protocol security) helps secure
packet routing.
- Don’t match on IPsec packets Do not match any
IPsec packets.
- Match inbound IPsec packets Match IPsec packets
that are entering the EdgeRouter.
- Match inbound non-IPsec packets Match non-IPsec
packets that are entering the EdgeRouter.

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