Routing

Hi i have problem with my cisco 1841 my network cannot connect to the internet but my cisco 877 have internet what configuration i need to do in my cisco 1841 so my network can connect to the internet

Hello all, I have a curious situation in which I have a 4503 acting as my campus core switch/router. In one of my buildings I have several servers and clients participating in multicast communications. At the moment all of these systems are communica...

I have an ISP providing a redundant internet circuit through Ethernet handoff, and I need to route their border network to my firewall which will hold the public IP address block.  The handoffs will go into 2 3750 switches stacked, which in turn will...

Hey folks, I'm having an issue setting up multiple crypto isakmp policies on my 1921 router. Whenever I have only one crypto isakmp policy set up like so:crypto isakmp policy 1 encr aes 256 group 5 It works perfectly fine with my certificate tunnel g...

Hi all,  I am facing issue with Etherchannel detects a physical link down. I have two sites connected by Layer 2 VPN controlled by the service provider (they are using huwawi equipment's). i am using 2960s stacked switches and i configured port chann...

Hi All,Does any-one know about passive-optical networks?If so, Can any one explain in detail?Thanks in advance!!

Hi All,I have a great confusion between PIM Dense and Sparse Mode. In PIM Dense Mode do they have the Concept of DR router?If so, DR router functions same for both dense and sparse mode i,e to forward the PIM join request?Can some give a detailed exp...

I'm having a bit of a brain fart.... I see that you can create an "unified" uplink from the 6248s to an upstream Nexus 5k.  Can I use this single uplink for both VSAN and VLAN traffic, or si the best practice to separare them into an Ethernet uplink ...

I'm configuring an 887VA router's fastethernet0 interface.  What I want to do is trunk all VLAN's from this router to a cisco 2960 switch (or any other access layer switch really).I'm seeing that there's a limitation on this 887VA of only being able ...

What is the best practice for inserting a gateway (default-route) into my ospf network.  I'm currently connected with three Internet connections from two different ISPs on two different routers.  These two routers talk to my internal network via ospf...

Hi, We are expanding our office to another floor (2 floors down) in the same building. We will be needing 8 switches on the new floor office which will connect to the existing office's switch (Catalyst 4500).I need suggestions on the switches.The swi...