Examples

The following examples show different ways that the List of IP addresses can be defined.

• The following example allows all IP addresses, with the exception of one specific address (81.50.1.241) and a range of addresses (80.56.241.0-80.56.241.255).

  ALLOW  *       First statement allows any IP

  FORBID 81.50.1.241

  FORBID 80.56.241.*

  Alternatively, you can write the last line as
  FORBID 80.56.241.0,MASK=255.255.255.0

• The following example forbids all IP addresses, with the exception of two specific addresses (172.16.241.128 and 81.50.1.241) and a range of addresses (80.56.241.0-80.56.241.255).

  FORBID *       First statement forbids any IP

  ALLOW  172.16.241.128

  ALLOW  81.50.1.241

  ALLOW  80.56.241.*

• The following example allows 2 short ranges (172.16.241.0 -172.16.241.127) and (172.16.241.129-172.16.241.255) to communicate with IOAGATE.

  FORBID *

  ALLOW  172.16.241.*

  FORBID 172.16.241.128

• The following example uses a subnet mask to permit a range of addresses. The permitted range is 172.16.240.0 to 172.16.255.255.

  FORBID *

  ALLOW 172.16.240.0,MASK=255.255.240.000