LAB SIMULATION Configure individual VRFs for each customer according to the topology to achieve these goals : R1 R2 SW1 SW2 SW3
Correct Answer:
Use cu-red under interfaces facing SW1 & SW3: On R1: interface Ethernet0/0 ip vrf forwarding cu-red ip address 192.168.1.254 255.255.255.0 Check reachability to SW1: R1#ping vrf cu-red 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.2.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms On R2: interface Ethernet0/0 ip vrf forwarding cu-red ip address 192.168.2.254 255.255.255.0 Check reachability to SW3: R2#ping vrf cu-red 192.168.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Use vrf cu-green for SW2 & SW4: On R1: interface Ethernet0/1 ip vrf forwarding cu-green ip address 192.168.20.254 255.255.255.0 Test reachability to SW2: R1#ping vrf cu-green 192.168.20.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.22.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms On R2: interface Ethernet0/1 ip vrf forwarding cu-green ip address 192.168.22.254 255.255.255.0 Test reachability to SW4: R2#ping vrf cu-green 192.168.22.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.20.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms On R1: interface Ethernet0/2.100 mpls ip ! interface Ethernet0/2.200 mpls ip ! Configure BGP: router bgp 65000 neighbor 10.10.10.2 remote-as 65000 neighbor 10.10.20.2 remote-as 65000 ! address-family vpnv4 neighbor 10.10.10.2 activate neighbor 10.10.20.2 activate exit-address-family ! address-family ipv4 vrf cu-green redistribute connected exit-address-family ! address-family ipv4 vrf cu-red redistribute connected exit-address-family ! R1(config)#ip vrf cu-red R1(config-vrf)#route-target both 65000:100 ! R1(config)#ip vrf cu-green R1(config-vrf)#route-target both 65000:200 On R2: interface Ethernet0/2.100 mpls ip ! interface Ethernet0/2.200 mpls ip ! router bgp 65000 neighbor 10.10.10.1 remote-as 65000 neighbor 10.10.20.1 remote-as 65000 ! address-family vpnv4 neighbor 10.10.10.1 activate neighbor 10.10.20.1 activate exit-address-family ! address-family ipv4 vrf cu-green redistribute connected exit-address-family ! address-family ipv4 vrf cu-red redistribute connected exit-address-family R2(config)#ip vrf cu-red R2(config-vrf)#route-target both 65000:100 ! R2(config)#ip vrf cu-green R2(config-vrf)#route-target both 65000:200 Verification: From SW1 to SW3: SW1#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms But can't Reach SW2 or SW4 in VRF cu-green: SW1#ping 192.168.22.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.22.1, timeout is 2 seconds: U. U.U Success rate is 0 percent (0/5) SW1#ping 192.168.20.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.20.1, timeout is 2 seconds: U. U.U Success rate is 0 percent (0/5) Same Test for SW2: From SW2 to SW4: SW2#ping 192.168.20.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.20.1, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms But can't Reach SW3 or SW1 in VRF cu-red: SW2#ping 192.168.1.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds: U. U.U Success rate is 0 percent (0/5) SW2#ping 192.168.2.1 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.2.1, timeout is 2 seconds: U. U.U Success rate is 0 percent (0/5) Both R1 & R2 has separate tables for VRFs cu-red and cu-green.
Question 447
What is a function of the IPv6 DHCP Guard feature for DHCP messages?
Correct Answer: B
Question 448
An engineer must override the normal routing behavior of a router for Telnet traffic that is destined to 10.10.10.10 from 10.10.1.0/24 via a next hop of 10.4.4.4. which is directly connected to the router that is connected to the 10.1.1.0/24 subnet Which configuration reroutes traffic according to this requirement?
Correct Answer: D
Question 449
Refer to the exhibit. Which configuration configures a policy on R1 to forward any traffic that is sourced from the 192.168.130.0/24 network to R2?
Correct Answer: B
Question 450
Refer to the exhibit. A network administrator is troubleshooting IPv6 address assignment for a DHCP client that is not getting an IPv6 address from the server. Which configuration retrieves the client IPv6 address from the DHCP server?
