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Connectivity Guide

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Table Of Contents
show hosts
Displays the host table and DNS configuration.
Syntax
show hosts [vrf vrf-name]
Parameters vrf vrf-name — Enter vrf then the name of the VRF to display DNS host information corresponding
to that VRF.
Default Not configured
Command Mode EXEC
Usage
Information
None
Example
OS10# show hosts
Default Domain Name : dell.com
Domain List : abc.com
Name Servers : 1.1.1.1 20::2
=============================================
Static Host to IP mapping Table
=============================================
Host IP-Address
---------------------------------------------
dell-pc1 20.1.1.1
Supported
Releases
10.2.0E or later
IPv4 DHCP limitations
This section lists the DHCP limitations.
IPv4 DHCP asymmetric routing
OS10 does not support DHCP relay with IPv4 asymmetric routing. OS10 supports DHCP relay with IPv6 asymmetric routing.
The DHCP relay agent listens on the best DHCP server path. If the DHCP OFFER packet is sent through a path that the DHCP
relay agent is not listening on, the DHCP OFFER packet drops. In this case, the DHCP client-enabled interface does not receive
the IPv4 address.
For example, in the following topology, the DHCP DISCOVER packet is sent by the relay agent (R4) on link 2. The relay agent
routing table points only to link 2 to reach the DHCP server. However, the DHCP server sends the DHCP OFFER packet to relay
agent (R4) on a different path and the DHCP OFFER packet drops.
This issue occurs because the relay agent listens only on the best path uplink interfaces where the DHCP server is reachable.
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System management