Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 457

24 IPv4 Routing IPv4 routing and various IP addressing features are supported. This chapter describes the basics of domain name service (DNS), address resolution protocol (ARP), and routing principles and their implementation in the Dell Networking OS. IP Feature Default DNS Disabled Directed Broadcast Disabled Proxy ARP Enabled ICMP Unreachable Disabled ICMP Redirect Disabled Topics: • IP Addresses • Configuration Tasks for IP Addresses • Assigning IP Addresses to an Interface • Configuring Static Routes • Configure Static Routes for the Management Interface • Enabling Directed Broadcast • Resolution of Host Names • Enabling Dynamic Resolution of Host Names • Specifying the Local System Domain and a List of Domains • Configuring DNS with Traceroute • ARP • ICMP IP Addresses The Dell Networking OS supports IP version 4 (as described in RFC 791), classful routing, and variable length subnet masks (VLSM). With VLSM, you can configure one network with different masks. Supernetting, which increases the number of subnets, is also supported. To subnet, you add a mask to the IP address to separate the network and host portions of the IP address. At its most basic level, an IP address is 32-bits composed of network and host portions and represented in dotted decimal format. For example, 00001010110101100101011110000011 is represented as 10.214.87.131. For more information about IP addressing, refer to RFC 791, Internet Protocol. Implementation Information You can configure any IP address as a static route except IP addresses already assigned to interfaces. IPv4 Routing 457