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Thursday, August 19, 2010

Monday, August 16, 2010

*Fundamental Techniques in Handling People

1. Don't criticize, condemn, or complain.
2. Give honest and sincere appreciation.
3. Arouse in the other person an eager want.

*Six Ways to Make People Like You

1. Become genuinely interested in other people.
2. Smile.
3. Remember that a man's Name is to him the sweetest and most important sound in any language.
4. Be a good listener. Encourage others to talk about themselves.
5. Talk in the terms of the other man's interest.
6. Make the other person feel important and do it sincerely.

*Twelve Ways to Win People to Your Way of Thinking

1. Avoid arguments.
2. Show respect for the other person's opinions. Never tell someone they are wrong.
3. If you're wrong, admit it quickly and emphatically.
4. Begin in a friendly way.
5. Start with questions the other person will answer yes to.
6. Let the other person do the talking.
7. Let the other person feel the idea is his/hers.
8. Try honestly to see things from the other person's point of view.
9. Sympathize with the other person.
10. Appeal to noble motives.
11. Dramatize your ideas.
12. Throw down a challenge & don't talk negative when the person is absent, talk about only positive.

*Be a Leader: How to Change People Without Giving Offense or Arousing Resentment

1. Begin with praise and honest appreciation.
2. Call attention to other people's mistakes indirectly.
3. Talk about your own mistakes first.
4. Ask questions instead of directly giving orders.
5. Let the other person save face.
6. Praise every improvement.
7. Give them a fine reputation to live up to.
8. Encourage them by making their faults seem easy to correct.
9. Make the other person happy about doing what you suggest.

Friday, July 30, 2010

How to configure DHCP Relay on Cisco ASA Firewall

The ASA 5500 series firewall can work as DHCP relay agent which means that it receives DHCP requests from clients on one interface and forwards the requests to a DHCP server on another interface. Usually the DHCP server is located in the same layer 3 subnet with its clients. There are situations however where we have only one DHCP server but several layer 3 networks exist (on different security zones on a Cisco ASA) and dynamic IP allocation is required for those networks as well. With the DHCP relay feature, we can connect the DHCP server on one network zone and have the firewall forward all DHCP requests from the other network zones to the DHCP server.

The diagram below illustrates a simple network scenario with three security zones (network interfaces) and a single DHCP server. The three network zones are inside, outside and DMZ. The DHCP clients are connected to the inside network and the DHCP server on the DMZ network. The DHCP requests from the clients on the inside network will be relayed to the server on the DMZ network. The server will assign IP addresses in the range 192.168.1.0/24 to the clients.

Configuration

!First identify the DHCP server and the interface it Is connected to
ciscoasa# conf t
ciscoasa(config)# dhcprelay server 10.1.1.100 DMZ
ciscoasa(config)# dhcprelay timeout 90

!Now enable the DHCP relay on the inside interface
ciscoasa(config)# dhcprelay enable inside

!Assign the ASA inside interface IP as default gateway for the clients
ciscoasa(config)# dhcprelay setroute inside

Usage Guidelines

You can add up to four DHCP relay servers per interface. You must add at least one dhcprelay server command to the ASA Firewall configuration before you can enter the dhcprelay enable command. You cannot configure a DHCP client on an interface that has a DHCP relay server configured.

You cannot enable DHCP relay under the following conditions:
• You cannot enable DHCP relay and the DHCP relay server on the same interface.
• You cannot enable DCHP relay and a DHCP server (dhcpd enable) on the same interface.