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no neighbor {<ip-address>|<TAG>} enforce-multihop
Function:
Enforce the multihop connection to the neighbor. The “
no neighbor
{<ip-address>|<TAG>} enforce-multihop
” command cancels this configuration.
Parameter: <ip-address>
: Neighbor IP address.
<TAG>
: Name of peer group.
Default:
Not enforced.
Command Mode:
BGP route mode and address-family mode.
Usage Guide:
In fact the direct route can not be enforced to multihop, however will be treated as
a multihop connection with this configuration, namely the check originally only performed on
IBGP and EBGP of non-direct routes will be performed on all after this attribute set. The nexthop
direct connected check will not be performed at exit in enforce multihop conditions.
Example:
Switch(config-router)#neighbor 10.1.1.66 enforce-multihop
1.8.3.50 neighbor filter-list
Command: neighbor {<ip-address>|<TAG>} filter-list <.LINE> {<in>|<out>}
no neighbor {<ip-address>|<TAG>} filter-list <.LINE> {<in>|<out>}
Function:
Access-list control for AS-PATH. The “
no neighbor {<ip-address>|<TAG>} filter-list
<.LINE> {<in>|<out>}
” cancels the AS-PATH access-list control.
Parameter: <ip-address>
: Neighbor IP address.
<TAG>
: Name of peer group.
<LINE>
: AS-PATH access-list name configured through ip as-path access-list
<.LINE>
<permit|deny> <LINE>.
Default:
Not configured.
Command Mode:
BGP route mode and address list mode.
Usage Guide:
After first configured the IP AS-PATH access-list, apply this option to specified
neighbor will be able to send/receive routes with specified AS numbers in the AS list. Accepting
or denying depends on the configuration of the access-list, while sending and receiving are
configured by this command.
Example:
Configure the AS-PATH access control list, “ASPF” is the name of the access-list. The route with
AS number of 100 will not be able to update to the partner due to the filter table control.
Switch(config)#ip as-path access-list ASPF deny 100
Switch(config)#router bgp 100
Switch(config-router)# redistribute static
Switch(config-router)neighbor 10.1.1.66 filter-list aspf out
Relevant Commands: ip as-path access-list