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222 Fabric OS Administrator’s Guide
53-1002745-02
IP Filter policy
7
Traffic type and destination IP
The traffic type and destination IP elements allow an IP policy rule to specify filter enforcement for
IP forwarding. The INPUT traffic type is the default and restricts rules to manage traffic on IP
management interfaces,
The FORWARD traffic type allows management of bidirectional traffic between the external
management interface and the inband management interface. In this case, the destination IP
element should also be specified.
Implicit filter rules
For every IP Filter policy, the two rules listed in Table 38 are always assumed to be appended
implicitly to the end of the policy. This ensures that TCP and UDP traffic to dynamic port ranges is
allowed, so that management IP traffic initiated from a switch, such as syslog, radius and ftp, is not
affected.
Default policy rules
A switch with Fabric OS v6.2.0 or later will have a default IP Filter policy for IPv4 and IPv6. The
default IP Filter policy cannot be deleted or changed. When an alternative IP Filter policy is
activated, the default IP Filter policy becomes deactivated. Table 39 lists the rules of the default IP
Filter policy.
TABLE 38 Implicit IP Filter rules
Source address Destination port Protocol Action
Any 1024-65535 TCP Permit
Any 1024-65535 UDP Permit
TABLE 39 Default IP policy rules
Rule number Source address Destination port Protocol Action
1Any22TCPPermit
2Any23TCPPermit
3Any897TCPPermit
4 Any 898 TCP Permit
5Any111TCPPermit
6Any80TCPPermit
7Any443TCPPermit
8 Any 161 UDP Permit
9Any111UDPPermit
10 Any 123 UDP Permit
11 Any 600-1023 TCP Permit
12 Any 600-1023 UDP Permit