Brocade Communications Systems ServerIron ADX 12.4.00 Service Manual Page 105

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ServerIron ADX NAT64 Configuration Guide 93
53-1002444-02
ACLs and ICMP
5
DRAFT: BROCADE CONFIDENTIAL
Named ACLs
For example, to deny the administratively-prohibited message type in a named ACL, enter
commands such as the following.
ServerIronADX(config)# ip access-list extended melon
ServerIronADX(config-ext-nacl)# deny ICMP any any
or
ServerIronADX(config)# ip access-list extended melon
ServerIronADX(config-ext-nacl)# deny ICMP any any 3 13
Syntax: [no] ip access-list extended <acl-num> | <acl-name>
Syntax: deny | permit icmp <source-ip-address> | <source-ip-address/subnet-mask> | any | host
<source-host>
<destination-ip-address> | destination-ip-address/subnet-mask> | any | host
<destination-host>
<icmp-type> | <icmp-type-number> <icmp-code-number>
The extended parameter indicates the ACL entry is an extended ACL.
The <acl-name> | <acl-num> parameter allows you to specify an ACL name or number. If using a
name, specify a string of up to 256 alphanumeric characters. You can use blanks in the ACL name
if you enclose the name in quotation marks (for example, “ACL for Net1”). The <acl-num>
parameter allows you to specify an ACL number if you prefer. If you specify a number, enter a
number from 100 through 199 for extended ACLs.
The deny | permit parameter indicates whether packets that match the policy are dropped or
forwarded.
You can either use the <icmp-type> and enter the name of the message type or use the
<icmp-type-number> <icmp-ode-number> parameter and enter the type number and code number
of the message. Refer to Table 12 for valid values.
NOTE
“X” in the Type-Number or Code-Number column in Table 12 means the device filters any traffic of
that ICMP message type.
TABLE 12 ICMP message types and codes
ICMP message type Type Code
administratively-prohibited 3 13
any-icmp-type x x
destination-host-prohibited 3 10
destination-host-unknown 3 7
destination-net-prohibited 3 9
destination-network-unknown 3 6
echo 8 0
echo-reply 0 0
general-parameter-problem
NOTE: This message type indicates that required
option is missing.
12 1
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