# update-source

#### Syntax

For OSPF:

[ no ] update-source loopback interfaceSpecifier

For PIM:

update-source interfaceType interfaceSpecifier

no update-source [ interfaceType interfaceSpecifier ]

For RIP:

[ no ] update-source interfaceType interfaceSpecifier

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Specifies the loopback interface whose local address is used as the source address for the OSPF, PIM, or RIP connection to a remote neighbor. The no version deletes the source address from the connection.

| Note: For PIM, this command is typically used when you configure PIM remote neighbors to run multicast services over BGP/MPLS VPNs. That functionality is no longer supported.

#### Options

- interfaceSpecifier—Integer, in the range 1–4294967293, identifying the loopback interface
- interfaceType—Interface type; see Interface Types and Specifiers
- interfaceSpecifier—Particular interface; format varies according to interface type; see Interface Types and Specifiers

#### Mode

Remote Neighbor Configuration