Switching

I have three routers, connected in series, as shown in the attached picture: R3->R2->R1->Mintbox(emulated pc)All routers have eigrp configured, all routes advertised.The problem is, I can't ping the pc from either R3 or R2. However, pc can ping all o...

Hi Everyone, I am trying to configure a setup so that my Mitel i.p phone will connect to Vlan 11 and then Be able to connect my laptop in the pass through port mon the back of the i.p phone and connect to Vlan 10, I will explain a little more below.R...

Hello all,  I am trying to upgrade 2 switches and router.  one of the switches is a 48 port 2960-S and the other switch is a 24 port 2960-S .  They seem to have a different amount memory installed and I was wondering if I should upgrade the memory in...

Hi all, As the topic mentioned, I have a L3 switch which I have assigned fa0/1 as the trunk port and a L2 switch which I have also assigned fa0/1 as the trunk port. To play around, I set the switchport mode to access on the L2 fa0/1 and does the foll...

Hi all,   I have created a few loopback interfaces on my routers for simulating routes and has to started to google around for reasons on the usage of loopback interfaces. Some of the main reasons are that it can be use as an indication of the router...

hi i have a cisco c837 IOS version 12.4(15)T14and I've applied an access-list that have all facebook IP addresses which i denied  on e0 and every thing worked finethen i noticed that if i manually changed the dns on any machine to some dns's facebook...

Hi all,   Below is my network topology and i am trying to see how to simulate route summarization When doing a show ip protocols on Router5 , this is what i see (network summarization in effect) Router#show ip protocols Routing Protocol is "rip" S...

Hello Guys,I am configuring a cisco 4507 catalyst switch and have managed to create a few vlans for testing and i also have connectivity between the vlans and also the access switches. I have internet on the cisco 4507 and am able to ping outside too...