![]() ![]() Hint: for default route in Ipv4 we use 0.0.0.0 0.0.0.0 but for Ipv6 we will use ::/0 Step 4) Now I will do Default route on R10 and I will use next hop address Step 3) Hint: remember to enable IPV6 unicast-routing on R10 I go to R4 and create one Loopback address on R4# Success rate is 100 percent (5/5), round-trip min/avg/max = 0/1/8 msīut if I had some loopback address on the R4, then R10 can not ping that loopback address, we can use same concept as above or I Can show you the concept of Default route. Sending 5, 100-byte ICMP Echos to FEC0:1000::4, timeout is 2 seconds: Sending 5, 100-byte ICMP Echos to FEC0:1000::3, timeout is 2 seconds: Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/1 ms Sending 5, 100-byte ICMP Echos to FEC0:1000::2, timeout is 2 seconds: Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 ms Sending 5, 100-byte ICMP Echos to FEC0:1000::1, timeout is 2 seconds: Now If I try to ping from R4 to the loopback address of R10, it will work. Now I will just use up arrow key and put the rest of loopback network GigabitEthernet GigabitEthernet IEEE 802.3z Now we will configure it on R4 (using the ? mark) Most IP implementations support a loopback interface (lo0) to represent the loopback facility. I should be able to ping all loopback address located on R10 We must do above commands for all Loopback address, since the goal is that seated at R4 Step 2) Now I will configure Static Route, in here I need to put the destination Network inside my R4 router Inspect Context-based Access Control Engine The default prefix/128 applies automatically. When you configure an IPv6 address for a loopback interface, you do not specify a prefix. General-prefix Configure a general IPv6 prefix To configure an IPv6 address for the loopback interface, enter the ipv6 addressip-address command at the loopback interface configuration level, as shown in the following example. What are they fe80::fa1e:dfff:fee3:2adfen1 is a link local address which is valid only on the interface en1. Hint: on global Configuration start with IPV6?Įnter configuration commands, one per line. That’s 9 ipv6 addresses all going at once. So remember you need enable unicast-routing ON1 – OSPF NSSA ext 1, ON2 – OSPF NSSA ext 2 O – OSPF intra, OI – OSPF inter, OE1 – OSPF ext 1, OE2 – OSPF ext 2 I1 – ISIS L1, I2 – ISIS L2, IA – ISIS interarea, IS – ISIS summary Right now when i go to R4#show ipv6 route i do not see the loopback from R10 why?Ĭodes: C – Connected, L – Local, S – Static, R – RIP, B – BGP Here is R10 with so many loopback address: Ipv6 loopback address how to#Click the below links to learn more about how to simplify and shorten an IPv6 address.In here we have R4 and R10 with the following: This unspecified address is so lengthy and can be further simplified as ::/0. IPv4 and IPv6 routers will not forward packets with the unspecified address. (Example, the Operating System is configured to obtain an IP address dynamically using DHCP, and the machine is in the process of obtaining an IP address from the DHCP server) Unspecified address is used by an Operating System, before an IPv4 address or IPv6 address is configured on it. It must not be assigned to a physical or virtual interface. In IPv4, the IPv4 address used as Unspecified address is 0.0.0.0/0. The loopback address may be used by a node to send an IPv6 packet to itself. Unspecified address in IPv6 is the IPv6 address with all binary bits set to "0". Click the below links to learn more about how to simplify and shorten an IPv6 address. This loopback address is so lengthy and can be further simplified as ::1/128. Rest of the addresses in 127.0.0.0/8 are not widely used. But almost all leading operating systems use the name "localhost" to represent an IPv4 loopback address 127.0.0.1. In IPv4, we have an entire network (127.0.0.0/8) reserved as loopback addresses. The loopback addresses are typically used by programmers for development and testing of network applications without even having network configurations. ![]() Whenever we communicate to a loopback address (both in IPv4 and IPv6) the TCP/IP protocol stack will loop the packets back on the same interface, without even leaving the interface. The loopback addresses (both in IPv4 and IPv6) is an address which represents the same interface of a computer. ![]()
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