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Add Audited Standard IPv6 Default Actions

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Signed-off-by: Tom Eastep <teastep@shorewall.net>
This commit is contained in:
Tom Eastep 2011-05-24 07:17:25 -07:00
parent c333368243
commit c5b38de69c
4 changed files with 145 additions and 0 deletions
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40
Shorewall6/action.AAllowICMPs Normal file
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#
# Shorewall6 version 4 - Audited AllowICMPs Action
#
# /usr/share/shorewall6/action.AAllowICMPs
#
# This action A_ACCEPTs needed ICMP types
#
###############################################################################
#TARGET SOURCE DEST PROTO DEST
# PORT(S)
COMMENT Needed ICMP types (RFC4890)
A_ACCEPT - - ipv6-icmp destination-unreachable
A_ACCEPT - - ipv6-icmp packet-too-big
A_ACCEPT - - ipv6-icmp time-exceeded
A_ACCEPT - - ipv6-icmp parameter-problem
# The following should have a ttl of 255 and must be allowed to transit a bridge
A_ACCEPT - - ipv6-icmp router-solicitation
A_ACCEPT - - ipv6-icmp router-advertisement
A_ACCEPT - - ipv6-icmp neighbour-solicitation
A_ACCEPT - - ipv6-icmp neighbour-advertisement
A_ACCEPT - - ipv6-icmp 137 # Redirect
A_ACCEPT - - ipv6-icmp 141 # Inverse neighbour discovery solicitation
A_ACCEPT - - ipv6-icmp 142 # Inverse neighbour discovery advertisement
# The following should have a link local source address and must be allowed to transit a bridge
A_ACCEPT fe80::/10 - ipv6-icmp 130 # Listener query
A_ACCEPT fe80::/10 - ipv6-icmp 131 # Listener report
A_ACCEPT fe80::/10 - ipv6-icmp 132 # Listener done
A_ACCEPT fe80::/10 - ipv6-icmp 143 # Listener report v2
# The following should be received with a ttl of 255 and must be allowed to transit a bridge
A_ACCEPT - - ipv6-icmp 148 # Certificate path solicitation
A_ACCEPT - - ipv6-icmp 149 # Certificate path advertisement
# The following should have a link local source address and a ttl of 1 and must be allowed to transit abridge
A_ACCEPT fe80::/10 - ipv6-icmp 151 # Multicast router advertisement
A_ACCEPT fe80::/10 - ipv6-icmp 152 # Multicast router solicitation
A_ACCEPT fe80::/10 - ipv6-icmp 153 # Multicast router termination

52
Shorewall6/action.ADrop Normal file
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#
# Shorewall6 version 4 - Audited Drop Action
#
# /usr/share/shorewall6/action.ADrop
#
# The Audited default DROP common rules
#
# This action is invoked before a DROP policy is enforced. The purpose
# of the action is:
#
# a) Avoid logging lots of useless cruft.
# b) Ensure that 'auth' requests are rejected, even if the policy is
# DROP. Otherwise, you may experience problems establishing
# connections with servers that use auth.
# c) Ensure that certain ICMP packets that are necessary for successful
# internet operation are always ACCEPTed.
#
# IF YOU ARE HAVING CONNECTION PROBLEMS, CHANGING THIS FILE WON'T HELP!!!!!!!!!
#
###############################################################################
#TARGET SOURCE DEST PROTO DPORT SPORT
#
# Reject 'auth'
#
Auth(A_REJECT)
#
# ACCEPT critical ICMP types
#
AAllowICMPs - - ipv6-icmp
#
# Drop Broadcasts so they don't clutter up the log
# (broadcasts must *not* be rejected).
#
dropBcast(audit)
#
# Drop packets that are in the INVALID state -- these are usually ICMP packets
# and just confuse people when they appear in the log.
#
dropInvalid(audit)
#
# Drop Microsoft noise so that it doesn't clutter up the log.
#
SMB(A_DROP)
#
# Drop 'newnotsyn' traffic so that it doesn't get logged.
#
dropNotSyn(audit) - - tcp
#
# Drop late-arriving DNS replies. These are just a nuisance and clutter up
# the log.
#
ADropDNSrep

50
Shorewall6/action.AReject Normal file
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#
# Shorewall6 version 4 - Audited Reject Action
#
# /usr/share/shorewall6/action.AReject
#
# The audited default REJECT action common rules
#
# This action is invoked before a REJECT policy is enforced. The purpose
# of the action is:
#
# a) Avoid logging lots of useless cruft.
# b) Ensure that certain ICMP packets that are necessary for successful
# internet operation are always ACCEPTed.
#
# IF YOU ARE HAVING CONNECTION PROBLEMS, CHANGING THIS FILE WON'T HELP!!!!!!!!!
###############################################################################
#TARGET SOURCE DEST PROTO
#
# Don't log 'auth' -- REJECT
#
Auth(A_REJECT)
#
# Drop Multicasts so they don't clutter up the log
# (broadcasts must *not* be rejected).
#
AAllowICMPs - - ipv6-icmp
#
# Drop Broadcasts so they don't clutter up the log
# (broadcasts must *not* be rejected).
#
dropBcast(audit)
#
# Drop packets that are in the INVALID state -- these are usually ICMP packets
# and just confuse people when they appear in the log (these ICMPs cannot be
# rejected).
#
dropInvalid(audit)
#
# Reject Microsoft noise so that it doesn't clutter up the log.
#
SMB(A_REJECT)
#
# Drop 'newnotsyn' traffic so that it doesn't get logged.
#
dropNotSyn(audit) - - tcp
#
# Drop late-arriving DNS replies. These are just a nuisance and clutter up
# the log.
#
ADropDNSrep

3
Shorewall6/actions.std
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#
###############################################################################
#ACTION
ADrop # Audited Default Action for DROP policy
AReject # Audited Default Action for REJECT policy
AAllowICMPs # Audited Accept needed ICMP6 types
AllowICMPs # Accept needed ICMP6 types
Drop # Default Action for DROP policy
Reject # Default Action for REJECT policy