Post Views: 5,350 For those of you who love Wireshark and are supporting BGP, we would like to offer a great default profile for basic BGP. Consider for a moment what would be important in your network administration in basic BGP: All this would be a great starting point. Profiles are one of the most
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Post Views: 7,163 Check out these additional IPv6 Resources: Our IPv6 overview course at Udemy Our IPv6 Custom Profiles for Wireshark Our IPv6 classes at the Online School For those of you who love Wireshark and are supporting IPv6, we would like to offer a great default profile for IPv6. Consider for a moment what
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Post Views: 3,815 In this article, I will explain steps to correct a CONFIG_RESOLVE_FAILURE error in Cisco IOS. \If you are like many users of the latest IOS, you may find your routers constantly outputting a message like this: cell_pe1# %Error opening tftp://255.255.255.255/cisconet.cfg (Timed out) 19:20:43: %SYS-4-CONFIG_RESOLVE_FAILURE: System config parse from (tftp://255.255.255.255/cisconet.cfg) failed The reason
CONFIG_RESOLVE_FAILURE error Quick Fix in Cisco IOS Read More »
Post Views: 1,396 Sometimes, we need to transfer IOS from one router/platform to another. Other times, we can end up in Rommon> prompt because an IOS download failed of similar issue. Let’s start with a stranded router. It is strongly suggested that you get a PCMCIA memory card, insert it into a good router. From
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Post Views: 3,517 Anyone who has network admin access can make changes to the running configuration on a router or switch at any time. If you are running a large IT shop or in charge of just a few folks, this feature will enable you to control the concurrent changes to your running configuration. Exclusive
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Post Views: 3,202 This How To discusses how to set up one Cisco Router as a PKI Server and one Cisco Router as a client. That’s right, you can set up a Cisco router as a Certificate Authority (CA) and then set up other routers as clients to use that CA to authenticate on your
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Post Views: 2,154 CAR — or “rate limiting” — is a method for managing unwanted traffic on your network and making sure it doesn’t affect important traffic. Essentially, CAR controls the bandwidth of a certain type of traffic, and an access control list (ACL) defines which traffic it controls. Once you’ve created the ACL, you
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Post Views: 2,287 As VoIP becomes more widely used in the enterprise, the number of voice calls traversing the enterprise WAN becomes larger and larger. Typically the use of a proper codec is implemented to reduce the amount of bandwidth a voice call requires. The most commonly used codec for WAN voice traffic is called
Compressed Real Time Protocol (cRTP) to Streamline Voice in Cisco IOS Read More »
Post Views: 2,165 Show Version is a great command for routers, switches or PIX firewalls. Here is a look at all the things you can verify with the show version command: On Routers Cisco switches PIX firewalls We hope this helps and saves you time finding all this information by putting it in one place!
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Post Views: 2,156 This How To will describe the most common configuration needed for Cisco IOS to create a DHCP (IPv4) server on your switch or router. Before You Start Before you configure the DHCP address pool, you need to: •Identify DHCP options for devices where necessary, including the following: –Default boot image name –Default
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Post Views: 1,611 This short and sweet How To explains how to configure the DHCP Client in IOS. This is done using a single command. Go to the interface configuration: Router(config-if)#ip address dhcp Some service providers might ask you to use a client-id and/or a hostname of their own choice. This can be done by
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Post Views: 1,958 When a router learns multiple routes to a specific network via multiple routing processes (or routing protocols, such as RIP, RIPv2, IGRP, EIGRP, and OSPF), it installs the route with the lowest administrative distance in the routing table. Load balancing is a standard functionality of the router software, and is available across
Post Views: 1,757 The Border Gateway Protocol (BGP) allows internal and external networks or autonomous systems (AS’s) to exchange routes. BGP is a path-vector routing protocol, which simply means that its job is to exchange routing information between autonomous systems to find the most efficient path for your data to the Internet. Each BGP router
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Post Views: 1,987 A common question folks ask is “How do you check the bandwidth utilization on a router?” It is a great question and the answer is not as easy as you would expect. There are tools that accomplish this (i.e. NetFlow and there is another mentioned at the end of this page). However,
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Post Views: 2,499 In this article we will define and discuss Default and Static Routes. We often see the incorrect implementation and understanding of ‘default routes’. The default route is a “gateway of last resort.” This special route tells computers or other routers to contact the defined next hop of the default router if they
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