Huawei Quidway S3900 Series Command Manual

Command Manual – Routing Protocol
Quidway S3900 Series Ethernet Switches-Release 1510
Chapter 4 IP Routing Policy Configuration
Commands
Huawei Technologies Proprietary
4-9
index-number: Identifier of an item in the prefix address list. The item with a smaller
index-number will be tested first.
permit: Specifies the match mode of the defined address prefix list items as permit
mode. If the permit mode is specified and the IP address to be filtered is in the ip-prefix
range specified by the item, the item is filtered through and the next item is not tested. If
the IP address to be filtered is not in the ip-prefix range specified by the item, the next
item is tested
deny: Specifies the match mode of the defined address prefix list items as deny mode.
If the deny mode is specified and the IP address to be filtered is in the ip-prefix range
specified by the item, the item is not filtered through and the next item is not tested;
otherwise, the next item is tested.
network: IP address prefix range (IP address). If it is specified as 0.0.0.0 0, all the IP
addresses are matched.
len: IP address prefix range (mask length). If it is specified as 0.0.0.0 0, all the IP
addresses are matched.
greater-equal, less-equal: Address prefix range [greater-equal, less-equal] to be
matched after the address prefix network len has been matched. The meaning of
greater-equal is "greater than or equal to" , and the meaning of less-equal is "less
than or equal to". The range is len <= greater-equal <= less-equal <= 32. When only
greater-equal is used, it denotes the prefix range [greater-equal, 32]. When only
less-equal is used, it denotes the prefix range [len, less-equal].
Description
Use the ip ip-prefix command to configure an address prefix list or one of its items.
Use the undo ip ip-prefix command to delete an address prefix list or one of its items.
An address prefix list is used for IP address filtering. An address prefix list may contain
several items, and each item specifies one address prefix range. The inter-item filtering
relation is "OR". That is, passing an item means filtering through this address prefix list.
Not filtering through any item means not filtering through this prefix address list.
The address prefix range may contain two parts, which are determined by len and
[greater-equal, less-equal], respectively. If the prefix ranges of these two parts are both
specified, the IP to be filtered must match the prefix ranges of these two parts.
If you specify network len as 0.0.0.0 0, it matches the default route only.
Example
# Define an ip-prefix named p1 to permit only the routes whose mask lengths are 17 or
18 on network segment 10.0.192.0 8 to pass.
<Quidway> system-view
System View: return to User View with Ctrl+Z.
[Quidway] ip ip-prefix p1 permit 10.0.192.0 8 greater-equal 17 less-equal 18

Huawei Quidway S3900 Series Specifications

General

Brand	Huawei
Model	Quidway S3900 Series
Category	Switch
Language	English