Extreme Networks ExtremeWare 7.2e, Инструкция по установке и эксплуатации

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150 ExtremeWare 7.2e Installation and User Guide
Security
Figure 25: ICMP packets are filtered out
Example 3: Rate-limiting Packets
This example creates a rate limit to limit the incoming traffic from the 10.10.10.x subnet to 10 Mbps on
ingress port 2. Ingress traffic on port 2 below the rate limit is sent to QoS profile qp1 with its DiffServ
code point set to 7. Ingress traffic on port 2 in excess of the rate limit will be dropped.
The commands to create this rate limit is as follows:
create access-mask port2_mask source-ip/24 ports precedence 100
create rate-limit port2_limit port2_mask source-ip 10.10.10.0/24 port 2 permit qp1 set
code-point 7 limit 10 exceed-action drop
Network Login
Network Login is a feature designed to control the admission of user packets into a network by giving
addresses only to users that have been properly authenticated. Network Login is controlled by an
administrator on a per port, per VLAN basis. When Network Login is enabled on a port in a VLAN,
that port will not forward any packets until authentication takes place.
Once Network Login has been enabled on a switch port, that port is placed in a non-forwarding state
until authentication takes place. To authenticate, a user (supplicant) must provide the appropriate
credentials. These credentials are either approved, in which case the port is placed in forwarding mode,
or not approved, and the port remains blocked. The user logout can be initiated by FDB aging or by
submitting a logout request.
There are two types of authentication available to use with Network Login: web-based or 802.1x. There
are also two different modes of operation available to use with Network Login: Campus mode and ISP
mode. The authentication types and modes of operation can be used in any combination. The following
sections describe these choices.
ES4K011
10.10.10.1
10.10.10.100 10.10.20.100
10.10.20.1
NET20 VLAN NET10 VLAN
ICMP