WireGuard will perform much better than the GRE Tunnel thanks to their kernel driver.
Packets per seconds on small packets (1-5 Bytes):
#GRE TUNNEL DOWNLOAD#
Saturating Upload & Download speeds in both cases (no differences here).The GRE server was running Linux on the same hardware/network.(CIDR: Optional, Default: 30) (Adapter name: Optional).EAPoL (Extensible Authentication Protocol over LAN).Authentication, Authorization, Accounting.GRE Tunnel Configuration with Cisco Packet Tracer.Cisco Virtual Routing and Forwarding (VRF).Local SPAN Configuration on Packet Tracer.Remote SPAN Configuration on Packet Tracer.VRRP (Virtual Router Redundancy Protocol).VLAN Configuration on Cisco Packet Tracer.VLAN Port Assignment and VLAN Port Types.Inter VLAN Routing with Router on Stick Topology.Inter VLAN Routing Configuration Example.Inter VLAN Routing Configuration on GNS3.STP Configuration on Cisco Packet Tracer.RSTP Configuration on Cisco Packet Tracer.STP Portfast Configuration on Cisco Packet Tracer.PVST+ and Rapid PVST+Configuration on Packet Tracer.Basic Cisco Router Security Configuration.DHCP Snooping Configuration on Packet Tracer.Standard ACL Configuration With Packet Tracer.Access Control Lists for Traffic Control.Dynamic NAT Configuration with Packet Tracer.Static NAT Configuration with Packet Tracer.Etherchannel Cisco PAgP Configuration on GNS3.Cisco DHCP Relay Agent Configuration with GNS3.Point-to-Point Protocol over Ethernet (PPPoE).
Frame Relay Point-to-Point Configuration. Frame-Relay Configuration with both Inverse-ARP and Frame-Relay Map. BGP Configuration Example on Packet Tracer. Cisco BGP Route Reflector Configuration on GNS3. OSPF(Open Shortest Path First) Overview. OSPFv3 (Open Shortest Path First Version 3). OSPFv3 Configuration Example on Cisco IOS. OSPF Standard Area and Backbone Area on Cisco Packet Tracer. OSPF External Routes on Cisco Packet Tracer. OSPF Stub Area and Totally-Stub Area on Cisco Packet Tracer. OSPF NSSA and Totally NSSA on Cisco Packet Tracer. OSPF Virtual-Link Configuration On Packet Tracer. EIGRP For IPv6 Configuration On Cisco IOS. EIGRP (Enhanced Interior Gateway Routing Protocol). RIPng Configuration Example on Cisco IOS. Static Route Configuration on Cisco Routers. IPv6 Static Route Configuration on Cisco IOS. ICMP (Internet Control Message Protocol). Generally we can divide this usage into two. In this header, 1 Byte is main part and 4 bytes are more optional parts.įor detailed information about GRE Header, you can check Cisco’s Support Forum. As you can see below, GRE Header is between two IP Header. This GRE Header is inserted with new IP Address (Tunnel IP Address) after the IP Header. These IPs are:įor Tunnel building, a GRE Header is inserted into the packet. To do this, we will give the real interface IP’s of Tunnel start and end points.Īs you can see above, for a GRE Tunnel, there are two important IPs and you must not mix them. After configuring passenger IP, we need to define physical source and destination of our Tunnel. This IP can also be called as passenger IP. This address will be our Tunnel’s one end IP address. In thsese routers, firstly, we need to create a Tunnel interface and then we add Tunnel IP Address to this interface. To configure GRE, we need two routers that we want to communicate. GRE Configuration is a very simple configuration. With this tunnels, a virtual network is build over a public physical network and different branches of the same company, can cummunicate eachother. Tunnel End Points know this passenger protocol but between the end points, the tranportation is done with transport protocol. This Tunnel means that there is a transport protocol and a passenger protocol. GRE provides this communication over a Tunnel. A Service Provider Network or Internet is used for GRE (Generic Routing Encapsulation). GRE (Generic Routing Encapsulation), GRE Tunnel is the mechanism that encapsulate one protocol in another protocol and provides connection between the nodes.
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