300-410 Cisco Exam Lab Questions

The configuration on NY router is good for OSPF authentication. So we must enable OSPF

authentication on LA router with the following commands:

router ospf 1

area 0 authentication message-digest

interface E0/0

ip ospf message-digest-key 1 md5 Cisco123

We need to use Policy Based Routing (PBR) here on Bangkok router to match the traffic from 192.168.3.0/24 & 192.168.4.0/24 and “set ip next-hop” to HongKong router(172.18.1.2 in this case).

Note: Please notice that we have to apply the PBR on incoming interface e0/3 to receive traffic from 192.168.3.0/24 and 192.168.4.0/24.

https://community.cisco.com/t5/other-network-architecture/out-of-band-router-access/td-p/333295

The “transport output none” command prevents any protocol connection made from R1.

Therefore our SSH connection to 192.168.12.2 was refused. In order to fix this problem we can

configure “transport output ssh” under “line console 0” of R1.

Note: The parameter “-l” specifies the username to log in as on the remote machine.

Diagram Description automatically generated

The MPLS LDP Inbound Label Binding Filtering feature can be used to control the amount of

memory used to store Label Distribution Protocol (LDP) label bindings advertised by other

devices. For example, in a simple Multiprotocol Label Switching (MPLS) Virtual Private Network

(VPN) environment, the VPN provider edge (PE) devices might require label switched paths

(LSPs) only to their peer PE devices (that is, they do not need LSPs to core devices). Inbound

label binding filtering enables a PE device to accept labels only from other PE devices.