Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual Page 97
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ServerIron ADX NAT64 Configuration Guide 85
53-1002444-02
Dropping all fragments that exactly match a flow-based ACL
5
DRAFT: BROCADE CONFIDENTIAL
• IGMP
• IGRP
• IP
• OSPF
• TCP
• UDP
• Protocol number, if an ACL is configured for a protocol not listed above
For TCP and UDP, a separate set of statistics is listed for each application port.
Clearing flow-based ACL statistics
To clear the ACL statistics, enter the following command at the Privileged EXEC level of the CLI.
ServerIronADX(config)# clear ip acl-traffic
Syntax: clear ip acl-traffic
Dropping all fragments that exactly match a flow-based ACL
For a packet fragment that is sent to the CPU for processing, the device compares the fragment’s
source and destination IP addresses against the interface’s ACL entries. By default, if the
fragment’s source and destination IP addresses exactly match an ACL entry that also has Layer 4
information (source and destination TCP or UDP application ports), the device permits or denies the
fragment according to the ACL.
On an individual interface basis, you can configure an IronCore device to automatically drop a
fragment whose source and destination IP addresses exactly match an ACL entry that has Layer 4
information, even if that ACL entry’s action is permit. To do so, enter the following command at the
configuration level for an interface.
ServerIronADX(config-if-1/1)# ip access-group frag deny
Syntax: [no] ip access-group frag deny
Clearing the ACL statistics
Statistics on the ACL account report can be cleared:
• When a software reload occurs
• When the ACL is bound to or unbound from an interface
• When you enter the clear access-list command, as in the following example.
ServerIronADX(config)# clear access-list all
Syntax: clear access-list all | ethernet <slot>/<port>
Enter all to clear all statistics for all ACLs.
Use ethernet <slot>/<port> to clear statistics for ACLs a physical port.
- ServerIron ADX 1
- Document History 2
- Contents 3
- About This Document 9
- Command syntax conventions 10
- Notice to the reader 11
- Related publications 11
- Getting technical help 11
- NAT64 and NAT46 Overview 13
- Stateless NAT46 translation 14
- Protocol support 15
- NAT64 fragmentation support 17
- References 18
- Stateful NAT64 Configuration 19
- Operation of stateful NAT64 20
- 53-1002444-02 23
- Enabling connection logging 28
- Displaying NAT64 information 31
- Displaying NAT64 translations 32
- Displaying NAT64 statistics 33
- Displaying NAT64 resources 37
- Stateless NAT64 Configuration 39
- Operation of stateless NAT64 40
- High availability for NAT64 52
- Clearing NAT64 information 53
- Stateless NAT46 Configuration 55
- Operation of stateless NAT46 56
- High availability for NAT46 67
- Displaying NAT46 information 68
- Clearing NAT46 information 69
- Access Control Lists 71
- Rule-based ACLs 72
- Default ACL action 74
- ACL IDs and entries 74
- Configuring rule-based ACLs 77
- Modifying rule-based ACLs 85
- Reordering ACLs 86
- Applying ACLs to interfaces 87
- Adding comments to named ACLs 89
- ACL logging 94
- Displaying ACL log entries 95
- Clearing the ACL statistics 97
- Throttling the fragment rate 98
- DRAFT: BROCADE CONFIDENTIAL 100
- Enabling strict TCP mode 101
- Enabling strict UDP mode 102
- ACLs and ICMP 103
- Numbered ACLs 104
- Named ACLs 105
- • Enable the strict TCP mode 107
- IPv6 Access Control Lists 109
- Configuration notes 110
- Processing of IPv6 ACLs 110
- Configuring IPv6 ACLs 111
- IPv6 ACL syntax 114
- Syntax Description 116
- Displaying IPv6 ACLs 118
- Logging IPv6 ACLs 119
- Network Address Translation 121
- Configuring NAT 122
- Configuring static NAT 123
- Configuring dynamic NAT 123
- Enabling IP NAT 124
- NAT configuration examples 125
- IP NAT with VIP overlap 129
- Translation timeouts 130
- Stateless static IP NAT 132
- IP NAT redundancy 133
- Displaying NAT information 144
- Displaying NAT translation 147
- Displaying VRRPE information 148
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