by Ted Haubein | Dec 23, 2014 | Cryptography, Routing
There is always the consideration for securing or authenticating the Control Plan between routing protocols and RIP is no exception. RIPv1 doesn’t support authentication, however RIPv2 supports both clear text and Message Digest 5 or MD5 authentication. Just to...
by Ted Haubein | Nov 1, 2014 | Routing
In most cases NAT translation is going to handled by the Corporate Firewall, but there certain situations or scenarios that lend themselves to creating NAT translations directly off a Router. One situation that comes to mind might call for the need to translate...
by Ted Haubein | Oct 14, 2014 | Voice
Cisco UP SIP Proxy The Cisco Unified Presence SIP Proxy service is responsible for providing the SIP registrar and proxy functionality. This includes request routing, requester identification, and transport interconnection. Cisco UP Presence Engine The...
by Ted Haubein | Oct 8, 2014 | Routing
OSPF EIGRP Administrative Distance = 110 Administrative Distance = 90 Routes advertised by multiple routing protocol lowest AD wins Routes advertised by multiple routing protocol lowest AD wins Layer 4 Protocol = 89 Layer 4 Protocol = 88 Process ID’s are...
by Ted Haubein | Oct 6, 2014 | Switching
The ability to enable or perform DHCP Snooping is one of those really cool and powerful features we find on Catalyst Switches such as 2900’s, 3500, and 3700’s Switches that often gets overlooked. This simple yet powerful feature can help prevent malicious,...
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