16.2.1 Packet Tracer - Configure GRE

configure GRE W generic routing encapsulation addressing table router ra with two physical interfaces and one virtual interface router ra with two physical interfaces and one virtual interface router RB to physical interfaces router RB to physical interfaces one virtual interface the tunnel one virtual interface and two pieces PCI and PCB and internet the cloud you are the network administrator for a company which wants to set up a GRE tunnel to a remote office both networks are locally configured you need to configure the tunnel and study routes verify router connectivity pink RI from RB yes your IP interface with command all right to determine the IP address of the serial 0 ports okay on this router ra click enter enable show IP interface brief and you can verify the serial zero zero zero IP address 64 103 211 too from our vipings the IP serial zero zero zero address of Ra okay from RB being the serial interface on ra click on RV enable config and pink pink and click on ra if this IP address 64 103 2112 64 103 211 to enter success so the first requirement is the connectivity between serial interfaces on the routers so this pink should be successful being PCA from PCB attempt to paint the IP address of PCA from PCB okay go to PCB command prompt and pinch the IP address of PCA the IP address of PCA is 1816812 go to PCB 182 16812 other request a timeout we will repeat this test after configuring the year eternal what were the pink results the pings failed explain okay go to RB show running config space space interface configured serial interface configured default study route to reach internet and other networks using serial interface okay using serial interface to reach internet and other networks go to array show running config Enter space space or a gigabit interface configure serial interface configure default static route to reach internet and other networks using serial interface using serial interface to reach internet and other networks PCB the pings failed because the internet cloud has no roots to reach the local networks of the R8 and RB routers so you can configure router array and router RB and you are not able to configure internet okay so configure year eternals configure the tunnel 0 interface of Ra okay first [Music] configure the interface tunnel zero a virtual interface set an IP address on the virtual Network on this virtual Network is the the IP address is one go to array enter and configure terminal interface tunnel 0. and set the IP address create ipls and subnet mask okay this set the source and destination for endpoints of tunnel zero okay for r a the souls is the serial zero zero zero okay serial zero zero zero the destination is the IP address of the another side the IP address of Serial zero zero zero on RB okay the IP address of Serial zero zero zero on RB 209 165 122 2. 2091 165 122. we go to r a donor source is the serial zero zero zero the local interface and the destination tunnel destination is the IP address or on the another side on rbcl000 IP address 209 165 122. create this [Music] enter configure tunnel zero to compare ibe traffic over GRE okay tunnel mode greip tunnel mode greip enter the tunnel 0 interface should already be active in the event that it is not treated like any other interface so not shut down okay tunnel zero change stay to up so not shut down is not necessary but anyway I will do it no shutdown enter exit configure tunnel zero interface of RB repeat the steps 1A e with RV from a to e repeat steps be sure to change the IP addressing the prepaid okay the same steps but the IP addresses are different if you go to RB configure terminal interface tunnel zero type the others this case is the another side 10 10 10 2. 2 same subnet Mass to V divided V5 divided by 25 to 52 enter downloads holes the local interface on RB is serial zero zero zero the souls serial zero zero zero and internal this the destination the another side the IP address of Serial zero zero zero on array serial zero zero zero only ra 64 103 2112 okay go to RB 64 103 211 to be careful with numbers enter okay configure tunnel 0 to compare IP traffic over GRE shut down thanks configure a route for private IP traffic establish a route between the 18168 networks using the 1010 zero prefix 3D network is the destination okay you configure the virtual interfaces for the tunnel but configure the routing in this case static routing okay go to ra and you can use a show IP Show run space space the tunnel the virtual interface gigabit interface serial interface this is a study rule to reach internet and other networks try to pay from PCB to PCA go to PCB ing to PCA 1916812 okay from PCB PCA enter okay request timeout go to RB for example and pink the another side of the tunnel 10 10 21 success okay the GRE tunnel is established but you need to use this tunnel to communicate the local area network of RV and the local area network of Ra so that's why you will create roots to reach the local area networks but using the tunnel so that's why you will use the IB addresses of the tunnel okay so first go to array Dot View terminal IP roots the destination if you will configure array the destination is this Network 180 168.20 prefix 24 182 168.20 refuse 24 to be divided with divided by zero and the net hop IP address for array using the tunnel is 10 10 10 2. 10 10 10 and go to RV configure terminal IP root IP root if you are configuring RB the destination is 18168.10 2 16810 so we divide 25 divided by zero but for RB using the tunnel the net Hub is 10 10 10 1. 10 very good pink PCA from PCB okay from PCB PCA go to PCB CA success the Ping should be successful tries the path from PCA to PCB attempt to trace the path from PCA to PCB okay you can trace apart from PCA to PCB or from PCB to PCA the same I will use three thirds from tricer from PCB to PCI enter only three hops the first Hub is RB the first Hub is RB the second Hub is RA using the tunnel notice this IP address 10.1 [Music] is r a the second half is RA using the virtual tunnel and the third hop is PCA so virtually internet is ignored virtually so note the lack of public IP addresses in the outputs compression 100 thank you very much

Channel: Christian Augusto Romero Goyzueta

Views: 1,446

Keywords: ccnp, ccnp enterprise, Core Networking, CCNP ENCOR v8, encor, v8, version 8, gre, generic routing encapsulation, tunnel, source, destination, mode

Id: 2TvX3DUW91k

Length: 16min 53sec (1013 seconds)

Published: Fri Mar 17 2023