648
Default
No maximum or minimum hop limit match criterion exists.
Views
RA guard policy view
Predefined user roles
network-admin
mdc-admin
Parameters
maximum
: Specifies the maximum advertised hop limit. An RA message passes the check if its
current hop limit is not higher than the maximum advertised hop limit.
minimum
: Specifies the minimum advertised hop limit. An RA message passes the check if its
current hop limit is not less than the minimum advertised hop limit.
limit
: Specifies the advertised hop limit in the range of 1 to 255.
Usage guidelines
If a hop limit match criterion is set, and the RA message's current hop limit is 0, the message will be
dropped.
Examples
# Set the maximum hop limit match criterion to 128 for the RA guard policy
policy1
.
<Sysname> system-view
[Sysname] ipv6 nd raguard policy policy1
[Sysname-raguard-policy-policy1] if-match hop-limit maximum 128
if-match prefix
Use
if-match prefix
to specify a prefix match criterion.
Use
undo if-match prefix
to delete the prefix match criterion.
Syntax
if-match prefix acl
{
ipv6-acl-number
|
name ipv6-acl-name
}
undo if-match prefix acl
Default
No prefix match criterion exists.
Views
RA guard policy view
Predefined user roles
network-admin
mdc-admin
Parameters
ipv6-acl-number
: Specifies an IPv6 basic ACL by its number in the range of 2000 to 2999.
name ipv6-acl-name
: Specifies an IPv6 basic ACL by its name, a case-insensitive string of 1 to 63
characters. The name must start with an English letter. To avoid confusion, the name cannot be
all
.
