Administrator Guide
CONFIGURATION mode
ip name-server ip-address [ip-address2 ... ip-address6]
The order you entered the servers determines the order of their use.
• When you enter the traceroute command without specifying an IP address (Extended Traceroute), you are prompted for a
target and source IP address, timeout in seconds (default is 5), a probe count (default is 3), minimum TTL (default is 1), maximum TTL
(default is 30), and port number (default is 33434).
CONFIGURATION mode
traceroute [host | ip-address]
To keep the default setting for these parameters, press the ENTER key.
The following text is example output of DNS using the traceroute command.
DellEMC#traceroute www.force10networks.com
Translating "www.force10networks.com"...domain server (10.11.0.1) [OK]
Type Ctrl-C to abort.
----------------------------------------------------------------------
Tracing the route to www.force10networks.com (10.11.84.18), 30 hops max, 40 byte packets
----------------------------------------------------------------------
TTL Hostname Probe1 Probe2 Probe3
1 10.11.199.190 001.000 ms 001.000 ms 002.000 ms
2 gwegress-sjc-02.force10networks.com (10.11.30.126) 005.000 ms 001.000 ms 001.000 ms
3 fw-sjc-01.force10networks.com (10.11.127.254) 000.000 ms 000.000 ms 000.000 ms
4 www.dell.com (10.11.84.18) 000.000 ms 000.000 ms 000.000 ms
DellEMC#
ARP
Dell EMC Networking OS uses two forms of address resolution: address resolution protocol (ARP) and Proxy ARP.
ARP runs over Ethernet and enables endstations to learn the MAC addresses of neighbors on an IP network. Over time, Dell EMC
Networking OS creates a forwarding table mapping the MAC addresses to their corresponding IP address. This table is called the ARP
Cache and dynamically learned addresses are removed after a defined period of time.
For more information about ARP, refer to RFC 826, An Ethernet Address Resolution Protocol.
In Dell EMC Networking OS, Proxy ARP enables hosts with knowledge of the network to accept and forward packets from hosts that
contain no knowledge of the network. Proxy ARP makes it possible for hosts to be ignorant of the network, including subnetting.
For more information about Proxy ARP, refer to RFC 925, Multi-LAN Address Resolution, and RFC 1027, Using ARP to Implement
Transparent Subnet Gateways.
Configuration Tasks for ARP
For a complete listing of all ARP-related commands, refer to the Dell EMC Networking OS Command Line Reference Guide.
Configuration tasks for ARP include:
• Configuring Static ARP Entries (optional)
• Enabling Proxy ARP (optional)
• Clearing ARP Cache (optional)
• ARP Learning via Gratuitous ARP
• ARP Learning via ARP Request
• Configuring ARP Retries
Configuring Static ARP Entries
ARP dynamically maps the MAC and IP addresses, and while most network host support dynamic mapping, you can configure an ARP
entry (called a static ARP) for the ARP cache.
To configure a static ARP entry, use the following command.
• Configure an IP address and MAC address mapping for an interface.
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IPv4 Routing