IP Access Control List - Non-Cloud - CLI

In this section:

IP Access Control Lists (IP ACLs) are the packet filtering objects applied to incoming IP packets on the SBC Core. These objects protect the system from a variety of network-borne attacks.

Use IP ACLs to specify rules to permit or deny packets into the SBC. The IP ACL can optionally pass the traffic but at only a certain policed rate.

When you create an IP ACL rule, its state defaults to "disabled". Change the state to "enabled" to active the rule.

The default IP ACL supports 20 Record-Routes.

Note

When a user creates a new management group the user must add user defined ACL rules to get the equivalent rules that are set up for the default management group.

Note

The SBC 52x0 and SBC 7000 systems support creating IP Interface Groups containing sets of IP interfaces that are not "processor friendly" (i.e. carried on physical Ethernet ports served by separate processors). However, restrictions exist regarding the usage of such Interface Groups.

(This ability does not apply to the SBC 51x0 and SBC 5400 systems which have only two physical media ports. IP interfaces from the two physical ports may be configured within the same IP Interface Groups without restriction.)

For complete details, refer to Configuring IP Interface Groups and Interfaces.

Refer to SBC Provisioning Limits for the maximum number of IP ACLs allowed on the SBC.

The SBC 5xx0/7000/SWe CLI syntax, parameter descriptions and command examples is provided below. Refer to IP Access Control List - Cloud - CLI for Cloud-equivalent CLI.

Command Syntax

% set addressContext <addressContext_name> ipAccessControlList...

// Mandatory parameters.

rule <rule_name> 
precedence <1-65535>

// Non-mandatory parameters.

action <accept | discard> 
bucketSize <bucket_size> 
destinationAddressPrefixLength <length> 
destinationIpAddress <IPv4/IPv6 Address> 
destinationPort <port number> 
fillRate <#> 
ipInterface <ipInterface name> 
ipInterfaceGroup <ipInterfaceGroup name> 
mgmtIpInterface <mgmtIpInterface name> 
mgmtIpInterfaceGroup <mgmtIpInterfaceGroup name>
minTTL <0-255>
protocol <any|0-255> 
sourceAddressPrefixLength <0-128> 
sourceIpAddress <IPv4/IPv6 Address> 
sourcePort <port number> 
state <disbled | enabled> 
vmAppName <VM application name>

Command Parameters

Note

The following conditions apply:

sourceIpAddress and sourcePort belong to the entity that sends packets to the SBC.
destinationIpAddress and destinationPort belong to the SBC that receives the packets.
ACLs is applicable only when an instance is receiving the packets and not when sending out the packets.

IP Access Control List Parameters (Non-Cloud)

Parameter	Length/Range	Description
Mandatory parameters:
`addressContext`	1-23	The name of the address context. The address context is a container of objects that correspond to a specific IP Addressing domain.
`rule`	N/A	Access Control List rule name.
`action`	N/A	Action to take when this rule is matched. `accept` – (default) Incoming packets matching this ACL rule are accepted into the system. `discard` – Incoming packets matching this ACL rule are discarded (not allowed into system).
`bucketSize`	1-255, or unlimited	The policing bucket size (in packets). A "bucketSize" represents a credit balance that should be consumed before the packets are discarded. The consumed credits reside in the bucket and gets reduced for every packet received on the Network Interface (NI). If a packet is received when the credit balance is less than the size of the packet, the packet is discarded subjected to the discard rate set in the IP Policing Alarm profile or in the Policer Alarm monitoring this Media Port. A setting of 'unlimited' allows continuous policing. (default = 50)
`destinationAddressPrefixLength`	N/A	The length of destination IP address prefix which must match the protocol. (default = 0).
`destinationIpAddress`	N/A	The destination IPv4 or IPv6 address to match. (default = 0.0.0.0). NOTE: When configuring a `destinationIpAddress`, the `destinationAddressPrefixLength` must also be specified.
`destinationPort`	0-65535	Destination port to match..
`fillRate`	1-10000, or unlimited	The number of packets to add to the bucket credit balance (in packets/second). If a packet is received at a rate exceeding this fill rate, it is discarded subjected to the discard rate set in the IP Policing Alarm profile or in the Policer Alarm monitoring this Media Port. The bucket credit balance is always less than the configured bucket size regardless of the size of this increment. A setting of 'unlimited' passes packets unconditionally. (default = 50).
`ipInterface`	N/A	Enter IP interface name to match, or "any" to match any IP interface. (See Invalid Characters table below for a list of invalid characters)
`ipInterfaceGroup`	N/A	Enter IP interface group name to match. (See Invalid Characters table below for a list of invalid characters)
`mgmtIpInterface`	N/A	Enter MGMT IP interface name to match, or "any" to match any MGMT IP interface. (*See Invalid Characters table below for a list of invalid characters)
`mgmtIpInterfaceGroup`	N/A	Enter MGMT IP interface group name to match, or "any" to match any MGMT IP interface group. (See Invalid Characters table below for a list of invalid characters)
`minTTL`	<0-255>	Use this paramenter for BFD traffic submisstion to specify the minimum TTL value allowed. For single-hop BFD traffic, set the value to 255. Default is 0.
`precedence`	1-65535	Use this parameter to specify the rule precedence to control which ACL rule is applied when multiple rules match a given packet. If an incoming packet matches multiple rules, the IP ACL rule with the highest precedence (lowest numerical precedence value) is applied to that packet. Each IP ACL rule must use a unique precedence value.
`protocol`	N/A	Enter IP protocol type for use as a criterion of the IP input match. Choices are 0-255, or one of the following: `any` – (default) filter all protocols `icmp` – filter ICMP only `icmpv6` – filter ICMPv6 only `ospf` – filter OSPF only `tcp` – filter TCP only `udp` – filter UDP only These protocols are typically associated with particular logical port values.
`sourceAddressPrefixLength`	N/A	The length of source IP address prefix which must match the protocol (default = 0).
`sourceIpAddress`	N/A	The source IPv4 or IPv6 address to match. (default = 0.0.0.0). NOTE: When configuring a `sourceIpAddress`, the `sourceAddressPrefixLength` must also be specified.
`sourcePort`	0-65535, or any	The source IP port to match. (default = 'any')
`state`	N/A	Administrative state of the IP access control list rule. `enabled` – All incoming packets are matched against this ACL rule. `disabled` – (default) The ACL rule is not used for any incoming packet matching.
`vmAppName`	N/A	The virtual machine application name against which to apply this ACL rule. If no name is specified, the rule is applied to the SBC application.

Invalid Characters

#

%

^

&

(

)

{

}

<

>

,

/

;

[

]

=

!

$

*

?

|

~

<space>

'

"

Command Examples

set addressContext default ipAccessControlList rule 2 action accept bucketSize unlimited destinationAddressPrefixLength 2 destinationIpAddress 10.34.25.153 destinationPort any fillRate 33 ipInterface ipInterface1 
ipInterfaceGroup INTERNAL_IPIG precedence 22 protocol any sourceAddressPrefixLength 1 sourceIpAddress 10.32.22.145 sourcePort any state disabled
 
show addressContext default ipAccessControlList
	rule 2 {
		precedence 22;
	protocol any;
	ipInterfaceGroup INTERNAL_IPIG;
	ipInterface ipInterface1;
	sourceIpAddress 10.32.22.145;
	sourceAddressPrefixLength 1;
	destinationIpAddress 10.34.25.153;
	destinationAddressPrefixLength 2;
	sourcePort any;
	destinationPort any;
	action accept;
	fillRate 33;
	bucketSize unlimited;
	state disabled;
 }

To display the IP access control list details with display level set to 1:

show addressContext default ipAccessControlList displaylevel 1
 rule RULE1;
 rule rule1;

To display the IP access control list details with display level set to 3:

show addressContext default ipAccessControlList displaylevel 3
	rule RULE1 {
		precedence 4;
	}
	rule rule1 {
		precedence 1;
		protocol any;
		sourceIpAddress 0.0.0.0;
		sourceAddressPrefixLength 0;
		destinationIpAddress 0.0.0.0;
		destinationAddressPrefixLength 0;
		sourcePort any;
		destinationPort any;
		action accept;	
		fillRate unlimited;
		bucketSize unlimited;
		state disabled;
	}

To view the configured rules and precedence from System-level CLI:

show table addressContext default ipAccessControlList rule
 
show table addressContext default ipAccessControlList ipAclRulesByPrecedence

To view statistics from System-level CLI:

show table addressContext default ipAccessControlList ipAclOverallStatistics
 
show table addressContext a1 ipAccessControlList ipAclRuleStatistics

If using a management interface group other than the default, adding a set of ACL rules as shown below will replicate the defaulted ACL rules the system provides for the default management interface group. In this example, a management interface group mgmtGroup1 has been previously created.

set addressContext default ipAccessControlList rule mgmt2_22 destinationPort 22 mgmtIpInterfaceGroup mgmtGroup1 protocol tcp bucketSize 10 fillRate 100 precedence 200 action accept state enabled
set addressContext default ipAccessControlList rule mgmt2_80 destinationPort 80 mgmtIpInterfaceGroup mgmtGroup1 protocol tcp bucketSize 10 fillRate 100 precedence 201 action accept state enabled
set addressContext default ipAccessControlList rule mgmt2_161 destinationPort 161 mgmtIpInterfaceGroup mgmtGroup1 protocol udp bucketSize 10 fillRate 50 precedence 202 action accept state enabled
set addressContext default ipAccessControlList rule mgmt2_123 sourcePort 123 mgmtIpInterfaceGroup mgmtGroup1 protocol udp bucketSize 4 fillRate 4 precedence 103 state enabled
set addressContext default ipAccessControlList rule mgmt2_162 sourcePort 162 mgmtIpInterfaceGroup mgmtGroup1 protocol udp bucketSize fillRate 10 precedence 104 state enabled
set addressContext default ipAccessControlList rule mgmt2_1812 sourcePort 1812 mgmtIpInterfaceGroup mgmtGroup1 protocol udp bucketSize 4 fillRate 4 precedence 105 state enabled
set addressContext default ipAccessControlList rule mgmt2_2022 destinationPort 2022 mgmtIpInterfaceGroup mgmtGroup1 protocol tcp bucketSize 10 fillRate 10 precedence 206 action accept state enabled
set addressContext default ipAccessControlList rule mgmt2_443 destinationPort 443 mgmtIpInterfaceGroup mgmtGroup1 protocol tcp bucketSize 10 fillRate 100 precedence 208 action accept state enabled
set addressContext default ipAccessControlList rule mgmt2_2024 destinationPort 2024 mgmtIpInterfaceGroup mgmtGroup1 protocol tcp bucketSize 250 fillRate 2500 precedence 209 action accept state enabled
set addressContext default ipAccessControlList rule mgmt2_1813 sourcePort 1813 mgmtIpInterfaceGroup mgmtGroup1 protocol udp bucketSize 250 fillRate 1200 precedence 110 state enabled
commit

To view the default system IP ACL statistics:

show table addressContext default ipAccessControlList defaultAclStatistics
                                  ADDRESS  LIF                                                                                                                                   VM
ACL                               CONTEXT  GRP  SOURCE IP          DESTINATION IP        POLICING     BUCKET                  POL  POL       PACKET  PACKET                      GUEST
ID   PROTOCOL  APPLICATION        ID       ID   ADDRESS            ADDRESS               MODE         SIZE       CREDIT RATE  ID   PRIORITY  ACCEPT  DISCARD  AGG POL   OWNER    ID
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
9    UDP       dns_udp_guest      *        *    * (53)             * (0)                 PktRate      50 pkt     1000 pkt/s   0    0         0       0        none      vm       anyVm
10   TCP       dns_tcp_guest      *        *    * (53)             * (0)                 PktRate      50 pkt     1000 pkt/s   0    0         0       0        none      vm       anyVm
11   TCP       sftp_guest         *        *    * (0)              * (2024)              DataPktRate  50000 pkt  50000 pkt/s  0    0         0       0        none      vm       anyVm
12   TCP       ssh_guest          *        *    * (0)              * (22)                DataPktRate  50000 pkt  50000 pkt/s  0    0         1       0        none      vm       anyVm
13   ICMPv4    icmpv4_guest       *        *    * (0)              * (0)                 DataPktRate  10 pkt     50 pkt/s     18   1         0       0        pol_icmp  vm       anyVm
14   ICMPv6    icmpv6_guest       *        *    * (0)              * (0)                 DataPktRate  10 pkt     400 pkt/s    18   1         0       0        pol_icmp  vm       anyVm
18   ICMPv4    icmpv4             *        *    * (0)              * (0)                 PktRate      50 pkt     50 pkt/s     22   1         66      0        ICMP      SBX5000  host
19   ICMPv6    icmpv6             *        *    * (0)              * (0)                 PktRate      50 pkt     50 pkt/s     22   1         0       0        ICMP      SBX5000  host
20   TCP       ssh                1        1    * (0)              10.6.82.35/32 (22)    PktRate      50 pkt     1000 pkt/s   19   1         118     0        OAM       SBX5000  host
21   TCP       web-client         1        1    * (0)              10.6.82.35/32 (80)    PktRate      50 pkt     10 pkt/s     19   1         31      0        OAM       SBX5000  host
22   UDP       snmp               1        1    * (0)              10.6.82.35/32 (161)   PktRate      50 pkt     1000 pkt/s   19   1         0       0        OAM       SBX5000  host
23   TCP       confd              1        1    * (0)              10.6.82.35/32 (2022)  PktRate      50 pkt     100 pkt/s    19   1         0       0        OAM       SBX5000  host
24   TCP       secure-web-client  1        1    * (0)              10.6.82.35/32 (443)   PktRate      50 pkt     20000 pkt/s  20   1         5583    0        SFTP      SBX5000  host
25   TCP       sftp               1        1    * (0)              10.6.82.35/32 (2024)  PktRate      50 pkt     20000 pkt/s  20   1         0       0        SFTP      SBX5000  host
26   TCP       connexIp-manager   1        1    * (0)              10.6.82.35/32 (444)   PktRate      50 pkt     20000 pkt/s  20   1         0       0        SFTP      SBX5000  host
27   TCP       secure-LI-client   1        1    * (0)              10.6.82.35/32 (1099)  PktRate      50 pkt     10 pkt/s     19   1         0       0        OAM       SBX5000  host
28   TCP       ssreq-tcp          1        1    * (0)              10.6.82.35/32 (3091)  PktRate      50 pkt     10 pkt/s     19   1         0       0        OAM       SBX5000  host
29   UDP       ssreq-udp          1        1    * (0)              10.6.82.35/32 (3090)  PktRate      50 pkt     10 pkt/s     19   1         0       0        OAM       SBX5000  host
30   TCP       ssh                1        1    * (0)              10.6.83.35/32 (22)    PktRate      50 pkt     1000 pkt/s   19   1         0       0        OAM       SBX5000  host
31   TCP       web-client         1        1    * (0)              10.6.83.35/32 (80)    PktRate      50 pkt     10 pkt/s     19   1         0       0        OAM       SBX5000  host
32   UDP       snmp               1        1    * (0)              10.6.83.35/32 (161)   PktRate      50 pkt     1000 pkt/s   19   1         0       0        OAM       SBX5000  host
33   TCP       confd              1        1    * (0)              10.6.83.35/32 (2022)  PktRate      50 pkt     100 pkt/s    19   1         0       0        OAM       SBX5000  host
34   TCP       secure-web-client  1        1    * (0)              10.6.83.35/32 (443)   PktRate      50 pkt     20000 pkt/s  20   1         0       0        SFTP      SBX5000  host
35   TCP       sftp               1        1    * (0)              10.6.83.35/32 (2024)  PktRate      50 pkt     20000 pkt/s  20   1         0       0        SFTP      SBX5000  host
36   TCP       connexIp-manager   1        1    * (0)              10.6.83.35/32 (444)   PktRate      50 pkt     20000 pkt/s  20   1         0       0        SFTP      SBX5000  host
37   TCP       secure-LI-client   1        1    * (0)              10.6.83.35/32 (1099)  PktRate      50 pkt     10 pkt/s     19   1         0       0        OAM       SBX5000  host
38   TCP       ssreq-tcp          1        1    * (0)              10.6.83.35/32 (3091)  PktRate      50 pkt     10 pkt/s     19   1         0       0        OAM       SBX5000  host
39   UDP       ssreq-udp          1        1    * (0)              10.6.83.35/32 (3090)  PktRate      50 pkt     10 pkt/s     19   1         0       0        OAM       SBX5000  host
40   UDP       ntp                1        1    10.1.1.2/32 (123)  * (0)                 PktRate      50 pkt     10 pkt/s     21   1         267     0        RBA       SBX5000  host

The following example CLI ipAccessControlList commands define ACL rules to allow SSReq to receive packets on ports 3090 and 3091:

Port 3090 is used by SSReq Server to receive XML requests over UDP from a SSReq Client.
Port 3091 is used by SSReq Server to receive XML requests over TCP from a SSREeq Client.

set addressContext default ipAcessControlList rule ssrequdp precedence 2 destinationPort 3090 state enabled
set addressContext default ipAcessControlList rule ssreqtcp precedence 3 destionationPort 3091 state enabled

Note

System ACLs are displayed only for default AddressContext.

System ACL Command Parameters

System ACL Parameters

Parameter	Description
`addressContextID`	Displays the address context ID of the ACL rule.
`application`	Displays the application that uses the ACL rule.
`bucketSize`	Displays the policer bucket size.
`creditRate`	Displays the allowed packet rate.
`destinationIpAddress`	Displays the destination IP address, Port Number and Prefix length.
`lifGrpId`	Displays the management group ID.
`packetAccpet`	Displays the number of packets accepted by the rule.
`packetDiscard`	Displays the number of packets discarded by the ACL policer.
`polId`	Displays the aggregator policer ID.
`polPriority`	Displays the aggregator policer priority.
`policingMode`	Displays the policing mode in packets per second.
`protocol`	Displays the protocol type of the rule.
`sourceIpAddress`	Displays the source IP address, Port Number and Prefix length.

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Command Parameters

Command Examples

System ACL Command Parameters