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User Manual / IBR900/IBR950 1/5/17
• Password: Enable message digest5 (MD5) authentication on a TCP connection between BGP peers. The
same password must be used on both peers.
• Update Source: Specify the IPv4 source address or interface name to use for the BGP session to this
neighbor.
• Default Originate: Allow the local router to send the default route (0.0.0.0) to a neighbor for use as a
default route. Optionally, a route map can be specified to conditionally inject the default route.
• Don’t Send Community: Unless this option is selected, any defined communities attributes will be sent to
the BGP neighbor.
• eBGP Multihop: Accept and attempt BGP connections to external peers residing on networks that are not
directly connected. Mutually exclusive with TTL Security. Optionally specify Time To Live from 1 to 255
hops.
• TTL Security: Specify the number of hops to reach eBGP neighbors. Mutually exclusive with eBGP Multihop.
• Next Hop Self: Configure the router as the next hop for a BGP-speaking neighbor or peer group if it is
learned via eBGP. Select All to also apply this setting to routes learned via iBGP.
• Local AS Number: Enter the AS Number used locally as this neighbor’s prefix. It is prepended to the
received AS_PATH when receiving routing updates from the peer, and prepended to the outgoing AS_PATH
when transmitting local routes to the peer. Check
No Prepend to not prepend the local AS Number to either
the received or outgoing AS_PATH. Check Replace AS to prepend the local AS Number to just the outgoing
AS_PATH.
• Distribute-list In/Out: Specify a distribute-list for the peer in either or both directions. Lists are chosen
from the collection of access lists and prefix lists defined in Route Filters, Common tab. Access list and
prefix list names are prepended with ‘al’ and ‘pl’, respectively.
• Filter-list In/Out: Filter this neighbor’s incoming and/or outgoing advertisements according to the specified
as-path access list(s). Lists are chosen from the collection of as-path access lists defined in Route Filters,
BGP tab.
• Prefix-list In/Out: Filter this neighbor’s incoming and/or outgoing advertisements according to the
specified prefix list(s). Lists are chosen from the collection of prefix lists defined in Route Filters, Common
tab.
• Route Map In/Out: Apply a route map to incoming and/or outgoing routes. Maps are chosen from the
collection of route maps defined in Route Filters, Common tab.
• Route Reflector Client: Configures the router as a BGP route reflector and configures the neighbor as its
client.
• Capability Negotiation: Configure capability negotiation with the remote peer. Select Strict to completely
match capabilities. Select Disable to suppress sending a negotiation message to peers that are not
configured as IPv4 unicast. Select Override to ignore the remote peer’s capability value and use the local
value instead.
• Soft Reconfiguration: Configure the router to store updates.
• Advertisement Interval: Configure the interval for BGP routing updates, in seconds from 0 to 600.
• Timers Keepalive/Hold: Keepalive interval is the time between keepalive messages sent to peers. Hold
time is the timeout after the last keepalive message until the peer is declared dead. The Keepalive interval
must be set in order to set the Hold time . All times are in seconds from 1 to 65535. Set to 0 or empty to
disable (default).
Redistribute Routes
: Redistribute routes of the specified protocol or kind into BGP, with the metric type and
metric set if specified, filtering the routes using the given route map if specified. Redistributed routes may
also be filtered with distribute lists.
• Type : The type is the source of the route. Select from: Main, Connected, Static, RIP, and OSPF.
• Metric : Numerical priority of the route.
• Route Map : Route maps provide a means to filter and/or apply actions to routes, allowing policies to be
applied to routes.