November 22, 2008 12:56 PM
Posted by: Yasir Irfan
802.1 Q,
CCNP,
Cisco,
Cisco 2950,
Cisco 2960,
Cisco 3560,
Cisco 3560-E,
Cisco 3750-E,
Cisco 6500,
Cisco 6500 Series Catalyst Switch,
Cisco 6503,
Cisco Catalyst 6503-E Switch,
Cisco Catalyst 6506-E Switch,
Cisco Catalyst 6509-E Switch,
Cisco Catalyst 6509-V-E Switch,
Cisco Catalyst 6513 Switch,
Cisco IOS,
Cisco Learning,
Cisco Systems,
Cisco Tips,
Configuring DHCP Snooping,
DHCP,
DHCP Snooping,
HSRP,
IOS commands,
Networking,
Routing and Switching,
Server Security,
Switches,
Switching,
Trunk Ports So here we go, with the configuration of DHCP snooping on a Cisco Switch. This feature protects the network by allowing the Cisco Switches to accept DHCP response message only from the authorized servers connected to the trusted interfaces in a Cisco...
November 20, 2008 7:54 AM
Posted by: Yasir Irfan
Cisco,
Cisco 2960,
Cisco 3560,
Cisco 3745,
Cisco 6500,
Cisco 6500 Series Catalyst Switch,
Cisco 6503,
Cisco Catalyst 6503-E Switch,
Cisco Catalyst 6506-E Switch,
Cisco Catalyst 6509-E Switch,
Cisco Catalyst 6509-V-E Switch,
Cisco Catalyst 6513 Switch,
Cisco Systems,
Cisco Tips,
DHCP,
DHCP Snooping,
Network Security,
Security,
Switches,
SwitchingDynamic Host Configuration Protocol (DHCP) Snooping is a security feature which filters untrusted DHCP messages, this security feature can protects the devices on the network from associating with an unauthorized DHCP server. When the Dynamic Host Configuration Protocol...
November 9, 2008 6:51 AM
Posted by: Yasir Irfan
Cisco,
Cisco 6500,
Cisco 6500 Series Catalyst Switch,
Cisco 6503,
Cisco Catalyst 6503-E Switch,
Cisco Catalyst 6506-E Switch,
Cisco Catalyst 6509-E Switch,
Cisco Catalyst 6509-V-E Switch,
Cisco Catalyst 6513 Switch,
Cisco Systems,
Cisco Tips,
Hot Standby Router Protocol,
HSRP,
Network Troubleshooting,
Networking,
Routing and Switching,
Switches,
Switching,
Trojan
If you are running HSRP and one of your VLAN is down and the following errors are generated in your Switch don’t panic. All this happens due the Trojans in the network.