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CCNP TSHOOT 6.0 - Cisco Learning Home

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<strong>CCNP</strong>v6 <strong>TSHOOT</strong><br />

R2#debug ip icmp<br />

Nov 18 18:29:31.381: ICMP: echo reply sent, src 192.168.2.1, dst 10.1.10.1<br />

Nov 18 18:29:36.737: ICMP: echo reply sent, src 192.168.2.1, dst 10.1.10.1<br />

Nov 18 18:29:41.745: ICMP: echo reply sent, src 192.168.2.1, dst 10.1.10.1<br />

Nov 18 18:29:46.753: ICMP: echo reply sent, src 192.168.2.1, dst 10.1.10.1<br />

The above output shows R2 sending replies to PC-B at the internal private address because of the lack of NAT<br />

translation.<br />

DHCP-Related Commands<br />

DLS2#show ip dhcp server statistics<br />

Memory usage 15668<br />

Address pools 1<br />

Database agents 0<br />

Automatic bindings 1<br />

Manual bindings 0<br />

Expired bindings 0<br />

Malformed messages 0<br />

Secure arp entries 0<br />

Renew messages 2<br />

Message Received<br />

BOOTREQUEST 0<br />

DHCPDISCOVER 4<br />

DHCPREQUEST 4<br />

DHCPDECLINE 0<br />

DHCPRELEASE 1<br />

DHCPINFORM 0<br />

Message Sent<br />

BOOTREPLY 0<br />

DHCPOFFER 2<br />

DHCPACK 4<br />

DHCPNAK 0<br />

The above output displays DHCP pool activity from hosts requesting IP addressing.<br />

DLS2#show ip dhcp pool<br />

Pool BRO3 :<br />

Utilization mark (high/low) : 100 / 0<br />

Subnet size (first/next) : 0 / 0<br />

Total addresses : 254<br />

Leased addresses : 1<br />

Excluded addresses : 3<br />

Pending event : none<br />

1 subnet is currently in the pool :<br />

Current index IP address range Leased/Excluded/Total<br />

10.1.80.1 10.1.80.1 - 10.1.80.254 1 / 3 / 254<br />

The above output displays DHCP pool information, including the address range, number of excluded addresses,<br />

and lease activity.<br />

DLS2#show ip dhcp conflict<br />

IP address Detection method Detection time VRF<br />

10.1.80.1 Gratuitous ARP Nov 20 2009 06:09 PM<br />

All contents are Copyright © 1992–2010 <strong>Cisco</strong> Systems, Inc. All rights reserved. This document is <strong>Cisco</strong> Public Information. Page 16 of 20

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