Add an IP rule called
allow_ping_outbound
to allow ICMP pings to pass:
Device:/> add IPRule name=allow_ping_outbound
Action=NAT
SourceInterface=G3
SourceNetwork=InterfaceAddresses/G3_net
DestinationInterface=G2
DestinationNetwork=all-nets
Service=ping-outbound
The IP rule again has the
NAT
action and this is necessary if the protected local hosts have private
IPv4 addresses. The ICMP requests will be sent out from the Clavister Security Gateway with the
IP address of the interface connected to the ISP as the source interface. Responding hosts will
send back ICMP responses to this single IP and cOS Core will then forward the response to the
correct private IP address.
Adding a Drop All Rule
Scanning of the IP rule set is done in a top-down fashion. If no matching IP rule is found for a
new connection then the
default rule
is triggered. This rule is hidden and cannot be changed and
its action is to drop all such traffic as well as generate a log message for the drop.
In order to gain control over the logging of dropped traffic, it is recommended to create a drop
all rule as the last rule in the
main
IP rule set. This rule has an
Action
of
Drop
with the source and
destination network set to
all-nets
and the source and destination interface set to
any
.
The service for this rule must also be specified and this should be set to
all_services
in order to
capture all types of traffic. The command for creating this rule is:
Device:/main> add IPRule name=drop_all
Action=Drop
SourceInterface=any
SourceNetwork=any
DestinationInterface=any
DestinationNetwork=all-nets
Service=all_services
A valid license should now be installed to remove the cOS Core 2 hour demonstration mode
limitation. Doing this is described in
Section 3.5, “Installing a License”
.
Chapter 3: cOS Core Configuration
58
Содержание Eagle E7
Страница 11: ...Chapter 1 Product Overview 11...
Страница 23: ...Chapter 2 Installation 23...
Страница 50: ...limitation Doing this is described in Section 3 5 Installing a License Chapter 3 cOS Core Configuration 50...
Страница 65: ...Chapter 3 cOS Core Configuration 65...
Страница 72: ...Appendix B Declarations of Conformity 72...
Страница 73: ...Appendix B Declarations of Conformity 73...
Страница 76: ...Clavister AB Sj gatan 6J SE 89160 rnsk ldsvik SWEDEN Phone 46 660 299200 www clavister com...