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3.3.b Implement and troubleshoot default routing Default routes take advantage of the rule which says longest matching route wins. In the case where this is no specific matching route, the default route will be the route matched. Assume the ISP knows how to reach the 192.168.1.0 network, and assume all basic Ip addressing is …
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3.3.a Implement and troubleshoot static routing I will keep this section short and assume you know how static routing works. Here’s a quick lab to practice syntax Assume all IPs have been configured, everything except for static routing. Assume R1 is .1 for subnets. Assume R2 is .2 for subnets. Configure static routing such that …
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3.3 Fundamental routing concepts There are 3 steps to routing: 1. find outgoing interface 2. move the packet/switch between interfaces 3. rebuild the packet’s layer 2 headers In step 1, the router finds the longest match. Then the router does a recursive look up to find the outgoing interface. note: A route cannot be installed …
3.1.b (ix) DHCPv6 prefix delegation IPv6 prefix delegation is a way for upstream routers to assign subnets to downstream DHCP servers/routers. This has more of a use case in the ISP world where the ISP wants to assign specific public blocks to clients. Here is the configuration: ISP-R1: en conf t ipv6 …
3.1.b (viii) Stateful, stateless DHCPv6 Stateless: SLAAC and DHCPv6 can go hand in hand because SLAAC does not disseminate other information like DNS or other DHCP options. These are things that we no longer necessarily have to track so they can be stateless. However they still require a DHCPv6 server for. For example here’s a …
3.1.b (vii) SLAAC/DHCPv6 Interaction As stated in 3.1.b (viii) SLAAC and DHCPv6 can go hand in hand because SLAAC does not disseminate other information like DNS or other DHCP options. These are things that we no longer necessarily have to track so they can be stateless. However they still require a DHCPv6 server for. …