What is VRF also?

The “vrf-also” at the end of access-class will allow you to telnet/ssh in or out sourcing the VRF configured on the router. In other words if you did not have vrf-also at the end of the statement you can only telnet/ssh to the stuff on the global routing table.

What is VRF Cisco configuration?

Hi, VRF (Virtual Routing and Forwarding) is a technology that allows having more than one routing table on a single router. The concept of VRFs on routers is similar to VLANs on switches. VRFs are typically used in combination with MPLS VPNs.

What does access-class mean?

access-class is applied to line vty and controls who is able to remote access to the router or control who to remote access to from the router (depending on whether the access-class is applied inbound (the most common) or is applied outbound).

Which ACL method is used for enabling telnet and SSH communication?

Interface ACL – this ACL is the one that controls the traffic on a telnet and a SSH protocol.

What is RD value in VRF?

It is a unique number prepended to each route within a VRF to identify it as belonging to that particular VRF or customer. An RD is carried along with a route via MP-BGP when exchanging VPN routes with other PE routers. An RD is 64 bits in length comprising three fields: type (two bytes), administrator, and value.

What is RD in VRF?

As its name implies, a route distinguisher (RD) distinguishes one set of routes (one VRF) from another. It is a unique number prepended to each route within a VRF to identify it as belonging to that particular VRF or customer.

How many VRF can be created?

But remember one thing, you can’t have more than 30 OSPF process on a router, accordingly the maximum number of VRFs running OSPF would be 30 (router ospf id vrf vrf_name).

What are the two main types of access control lists ACLs?

There are two types of ACLs: Filesystem ACLs━filter access to files and/or directories. Filesystem ACLs tell operating systems which users can access the system, and what privileges the users are allowed. Networking ACLs━filter access to the network.

What is meant by class access modifiers?

A Java access modifier specifies which classes can access a given class and its fields, constructors and methods. Access modifiers can be specified separately for a class, its constructors, fields and methods.

What is the difference between standard ACL and extended ACL?

There are two types of IPv4 ACLs: Standard ACLs: These ACLs permit or deny packets based only on the source IPv4 address. Extended ACLs: These ACLs permit or deny packets based on the source IPv4 address and destination IPv4 address, protocol type, source and destination TCP or UDP ports, and more.

Can we configure ACL on switch?

Port ACL. Port ACLs are similar to Router ACLs but are supported on physical interfaces and configured on Layer 2 interfaces on a switch. Port ACL supports only inbound traffic filtering. Port ACL can be configured as three type access lists: standard, extended, and MAC-extended.