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abe0018d85
"deny=::" is equivalent to "::/128". In order to mean "deny everything by default" it must be "::/0".
81 lines
2.8 KiB
Plaintext
81 lines
2.8 KiB
Plaintext
;
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; Named Access Control Lists (ACLs)
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;
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; A convenient way to share acl definitions
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;
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; This configuration file is read on startup
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;
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; CLI Commands
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; -----------------------------------------------------------
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; acl show Show all named ACLs configured
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; acl show <name> Show contents of a particular named ACL
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; reload acl Reload configuration file
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;
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; Any configuration that uses ACLs which has been made to be able to use named
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; ACLs will specify a named ACL with the 'acl' option in its configuration in
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; a similar fashion to the usual 'permit' and 'deny' options. Example:
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; acl=my_named_acl
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;
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; Multiple named ACLs can be applied by either comma separating the arguments or
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; just by adding additional ACL lines. Example:
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; acl=my_named_acl
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; acl=my_named_acl2
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;
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; or
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;
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; acl=my_named_acl,my_named_acl2
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;
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; ACLs specified by name are evaluated independently from the ACL specified via
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; permit/deny. In order for an address to pass a given ACL, it must pass both
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; the ACL specified by permit/deny for a given item as well as any named ACLs
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; that were specified.
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;
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;[example_named_acl1]
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;deny=0.0.0.0/0.0.0.0
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;permit=209.16.236.0
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;permit=209.16.236.1
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;
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;[example_named_acl2]
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;permit=0.0.0.0/0.0.0.0
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;deny=10.24.20.171
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;deny=10.24.20.103
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;deny=209.16.236.1
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;
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; example_named_acl1 above shows an example of whitelisting. When whitelisting, the
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; named ACLs should follow a deny that blocks everything (like deny=0.0.0.0/0.0.0.0)
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; The following example explains how combining the ACLs works:
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; <in another configuration>
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; [example_item_with_acl]
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; acl=example_named_acl1
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; acl=example_named_acl2
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;
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; Suppose 209.16.236.0 tries to communicate and the ACL for that example is applied to it...
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; First, example_named_acl1 is evaluated. The address is allowed by that ACL.
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; Next, example_named_acl2 is evaluated. The address isn't blocked by example_named_acl2
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; either, so it passes.
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;
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; Suppose instead 209.16.236.1 tries to communicate and the same ACL is applied.
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; First, example_named_acl1 is evaluated and the address is allowed.
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; However, it is blocked by example_named_acl2, so the address is blocked from the combined
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; ACL.
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;
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; Similarly, the permits/denies in specific configurations that make up an ACL definition
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; are also treated as a separate ACL for evaluation. So if we change the example above to:
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; <in another configuration>
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; [example_item_with_acl]
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; acl=example_named_acl1
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; acl=example_named_acl2
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; deny=209.16.236.0
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;
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; Then 209.16.236.0 will be rejected by the non-named component of the combined ACL even
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; though it passes the two named components.
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;
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;
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; Named ACLs can use ipv6 addresses just like normal ACLs.
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;[ipv6_example_1]
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;deny = ::/0
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;permit = ::1/128
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;
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;[ipv6_example_2]
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;permit = fe80::21d:bad:fad:2323
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