rapolicy

RAPOLICY(1)                 General Commands Manual                RAPOLICY(1)



NAME
       rapolicy - compare a argus(8) data file/stream against a Cisco Access
       Control List.

COPYRIGHT
       Copyright (c) 2000-2003 QoSient. All rights reserved.

SYNOPSIS
       rapolicy -r argus-file [ra options]

DESCRIPTION
       Rapolicy reads argus data from an argus-file list, and tests the argus
       data stream  against a Cisco access control list configuration file,
       printing out records that represent activity that would violate the
       policy.  Rapolicy can be used to indicate access control violations, as
       well as test new access control definitions prior to installing them in
       a router.

OPTIONS
       Rapolicy, like all ra based clients, supports a large number of
       options.  Options that have specific meaning to rapolicy are:

          -f <Cisco ACL file> Print records that violate the policy.
          -D 0 (default)      Print records that violate the policy.
          -D 1                Print records and the violated ruleset.
          -D 2                Print all records and the ruleset that matched.

       See ra(1) for a complete description of ra options.

EXAMPLE INVOCATION
       rapolicy -r argus.file

CISCO ACL SYNTAX
       There does not seem to be authoritative Cisco-ACL-Documentation, nor
       ACL syntax standardization.  Because Cisco has been know to improve its
       ACL rules syntax, rapolicy is known to work with Cisco ACL router
       defintions up to July, 2002.

       A Cisco ACL configuration file consists of a collection of any number
       of ACL statements, each on a separte line.  The syntax of an ACL
       statement is:

          ACL        = "access-list" ID ACTION PROTOCOL SRC DST NOTIFICATION

          ID         = Number
          ACTION     = permit | deny
          PROTO      = protocol name | protocol number

          SRC | DST  = ADDRESS [PORTMATCH]

          ADDRESS    = any | host HOSTADDR | HOSTADDR HOSTMASK
          HOSTADDR   = ipV4 address
          HOSTMASK   = matching-mask

          PORTMATCH  = PORTOP PORTNUM | range PORTRANGE
          PORTOP     = eq | lt | gt | neq | established

          PORTRANGE  =  PORTNUM PORTNUM
          PORTNUM    =  TCP or UDP port value (unsigned decimal from 0 to 65535)



EXAMPLE CONFIGURATION
       This example Cisco Access Control List configuration is provided as an
       example only.  No effort has been made to verify that this example
       Access Control List enforces a useful access control policy of any
       kind.

       #allow www-traffic to webserver
       access-list 102 permit tcp any 193.174.13.99 0.0.0.0 eq 80

       #allow ftp control connection to server
       access-list 102 permit tcp any 193.174.13.99 0.0.0.0 eq 21

       #allow normal ftp
       access-list 102 permit tcp any 193.174.13.99 0.0.0.0 eq 20

       #allow ftp passive conncetions in portrange 10000 to 10500
       access-list 102 permit tcp any host 193.174.13.99 range 10000 10500

       #dummy example
       access-list 102 permit tcp host 193.174.13.1 eq 12345 host 193.174.13.2 range 12345 23456

       #deny the rest
       access-list 102 deny tcp any any

       #same thing in other words:
       access-list 102 deny tcp 0.0.0.0 255.255.255.255 0.0.0.0 255.255.255.255


AUTHORS
       Carter Bullard (carter@qosient.com).
       Olaf Gellert (gellert@pca.dfn.de).

SEE ALSO
       ra(1), rarc(5), argus(8)



                                 22 July 2002                      RAPOLICY(1)