37
Syntax
ipv6 dhcp server forbidden-prefix
start-prefix/prefix-len
[
end-prefix/prefix-len
]
[
vpn-instance
vpn-instance-name
]
undo ipv6 dhcp server forbidden-prefix
start-prefix/prefix-len
[
end-prefix/prefix-len
]
[
vpn-instance
vpn-instance-name
]
Default
No IPv6 prefixes in the DHCPv6 prefix pool are excluded from dynamic allocation.
Views
System view
Predefined user roles
network-admin
Parameters
start-prefix/prefix-len
: Specifies the start IPv6 prefix. The
prefix-len
argument
specifies the prefix length in the range of 1 to 128.
end-prefix/prefix-len
: Specifies the end IPv6 prefix. The
prefix-len
argument specifies
the prefix length in the range of 1 to 128. The value for
end-prefix
cannot be lower than that for
start-prefix
. If you do not specify this argument, only the
start-prefix/prefix-len
is
excluded from dynamic allocation. If you specify this argument, the prefixes from
start-prefix/prefix-len
to
end-prefix/prefix-len
are all excluded.
vpn-instance
vpn-instance-name
: Specifies an MPLS L3VPN instance by its name, a
case-sensitive string of 1 to 31 characters. If the excluded IPv6 prefixes belong to the public network,
do not specify this option.
Usage guidelines
If the excluded IPv6 prefix is in a static binding, the prefix can still be assigned to the client.
The prefix or prefix range specified in the
undo
form of the command must be the same as the prefix
or prefix range specified in the command. To remove a prefix that has been specified as part of a
prefix range, you must remove the entire prefix range.
You can execute this command multiple times to exclude multiple IPv6 prefix ranges from dynamic
allocation.
Examples
# Exclude IPv6 prefixes from 2001:3e11::/32 through 2001:3eff::/32 from dynamic allocation.
<Sysname> system-view
[Sysname] ipv6 dhcp server forbidden-prefix 2001:3e11::/32 2001:3eff::/32
Related commands
ipv6 dhcp server forbidden-address
static-bind
network
Use
network
to specify an IPv6 subnet for dynamic allocation in a DHCPv6 address pool.
Use
undo network
to restore the default.
Summary of Contents for SOHO IE4300
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Page 288: ...i Contents Python commands 1 exit 1 python 1 python filename 2...
Page 291: ...i Contents Automatic configuration commands 1 autodeploy udisk enable 1...
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Page 465: ...ii stp vlan enable 55 vlan mapping modulo 55...
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Page 609: ...i Contents VLAN mapping commands 1 display vlan mapping 1 vlan mapping 2...
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Page 1770: ...i Contents Time range commands 1 display time range 1 time range 1...
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Page 2308: ...61 ipsec transform set...
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Page 2534: ...3 Sysname ipv6 savi strict Related commands ipv6 verify source...
Page 2791: ...14 Sysname track 1 Related commands delay display track...
Page 2939: ...9 sntp authentication keyid sntp reliable authentication keyid...
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