GNS3 is a good simulator, and many people use it. B Haines has written a post about the GNS3, maybe useful for you! I wanted a reference to get GNS3 installed and…
Month: June 2009
Simple configuration of Context-Based Access Control
Technical characteristics: 1. Traffic filtering CBAC checks not only the information of the network layer and the transport layer but also the information of the application layer. It can also filter the…
EIGRP Stub Routers
Enhanced Interior Gateway Routing Protocol (EIGRP), Cisco’s proprietary yet hugely successful and widely deployed routing protocol, is known to behave disappointingly in inadequately designed networks. Cisco has improved EIGRP’s behavior dramatically with…
R&S Quick Notes – Frame-Relay/PPP
Frame-Relay DHCP on a frame interface : “frame-relay interface-dlci 555 protocol ip 166.166.166.2″ When asked to disable INARP, be sure to do so on physical interfaces any multipoint sub-interfaces. If you see…
IPv6 EUI-64 interface addressing
One of IPv6’s key benefits over IPv4 is its capability for automatic interface addressing. By implementing the IEEE’s 64-bit Extended Unique Identifier (EUI-64) format, a host can automatically assign itself a unique…
How to configure PPPoE?
PPPoE provides an emulated (and optionally authenticated) point-to-point link across a shared medium, typically a broadband aggregation network such as those found in DSL service providers. In fact, a very common scenario…
Few Words – IP Prefix Lists
Ip prefix-list provides the most powerful prefix based filtering mechanism Here is a quick little tutorial on Prefix-lists for you. A normal access-list CANNOT check the subnet mask of a network. It…
CCIE R&S Core Knowledge Question(10)
1. R1#show frame pvc interface serial 1/0 PVC Statistics for interface Serial1/0 (Frame Relay DTE) Active Inactive Deleted Static Local 1 0 0 0 Switched 0 0 0 0 Unused 0 0 …