Version 5.8 61 September 2009
SIP User's Manual 3. Web-Based Management
Parameter Description
At least one IPv4 interface with Media must be configured.
This can be combined with OAMP and Control.
Web/EMS: IP Address
[InterfaceTable_IPAddres]
The IPv4 IP address in dotted-decimal notation.
Notes:
Each interface must be assigned a unique IP address.
When booting using BootP/DHCP protocols, an IP address
is obtained from the server. This address is used as the
OAMP address for the initial session, overriding the
address configured using the InterfaceTable. The address
configured for OAMP applications in this table becomes
available when booting from flash again. This enables the
device to operate with a temporary address for initial
management and configuration while retaining the address
to be used for deployment.
Web/EMS: Prefix Length
[InterfaceTable_PrefixLength]
Defines the Classless Inter-Domain Routing (CIDR)-style
representation of a dotted decimal subnet notation. The
CIDR-style representation uses a suffix indicating the number
of bits which are set in the dotted decimal format (e.g.
192.168.0.0/16 is synonymous with 192.168.0.0 and a subnet
of 255.255.0.0. Defines the number of ‘1’ bits in the subnet
mask (i.e., replaces the standard dotted-decimal
representation of the subnet mask for IPv4 interfaces). For
example: A subnet mask of 255.0.0.0 is represented by a
prefix length of 8 (i.e., 11111111 00000000 00000000
00000000), and a subnet mask of 255.255.255.252 is
represented by a prefix length of 30 (i.e., 11111111 11111111
11111111 11111100).
The prefix length is a Classless Inter-Domain Routing (CIDR)
style presentation of a dotted-decimal subnet notation. The
CIDR-style presentation is the latest method for interpretation
of IP addresses. Specifically, instead of using eight-bit
address blocks, it uses the variable-length subnet masking
technique to allow allocation on arbitrary-length prefixes (refer
to http://en.wikipedia.org/wiki/Classless_Inter-
Domain_Routing for more information).
For IPv4 Interfaces, the prefix length values range from 0 to
31.
Note: Subnets of different interfaces must not overlap in any
way (e.g., defining two interfaces with 10.0.0.1/8 and
10.50.10.1/24 is invalid). Each interface must have its own
address space.
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