[FROG] LDP Cannot assign request address

Alessio Leonarduzzi alessio.leonarduzzi at gmail.com
Fri Jan 18 09:18:33 EST 2019


Hi all,

If I set loopback interface IP as discovery transport-address in MPLS
configuration the DEBUG output is:
[CUT]
2019/01/17 12:05:19 LDP: nbr_establish_connection: error while binding
socket to 1.1.1.1: Cannot assign requested address
2019/01/17 12:05:23 LDP: nbr_establish_connection: error while binding
socket to 1.1.1.1: Cannot assign requested address
2019/01/17 12:05:27 LDP: nbr_establish_connection: error while binding
socket to 1.1.1.1: Cannot assign requested address
2019/01/17 12:05:32 LDP: nbr_establish_connection: error while binding
socket to 1.1.1.1: Cannot assign requested address
2019/01/17 12:05:36 LDP: nbr_establish_connection: error while binding
socket to 1.1.1.1: Cannot assign requested address
2019/01/17 12:05:40 LDP: nbr_establish_connection: error while binding
socket to 1.1.1.1: Cannot assign requested address
[/CUT]


but if I use the physical interface all works good.

This is the configuration:

vrf VRF-PUBLIC
!
interface dummy0 vrf VRF-PUBLIC
 description Loopback0
 ip address 1.1.1.1/32
!
interface enp2s0f0 vrf VRF-PUBLIC
 description P2P01
 ip address 2.2.2.2/30
 ip ospf network point-to-point
!
interface enp2s0f2 vrf VRF-PUBLIC
 description P2P02
 ip address 3.3.3.3/30
 ip ospf network point-to-point
!
mpls ldp
 router-id 1.1.1.1
 dual-stack cisco-interop
 !
 address-family ipv4
  discovery transport-address 1.1.1.1
  label local advertise explicit-null
  !
  interface enp2s0f0
  interface enp2s0f1
  !
 exit-address-family
 !
!


The FRR version is 6.0.2 and I need to use MPLS on two interfaces (enp2s0f0
and enp2s0f1).

thank you for your help

regards

Alessio
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