Routing

Recently, we’ve experienced some flapping on our internet facing interface. I noticed the “Lost Carrier” counter increasing. After swapping our cable and the ISP testing their equipment and cabling, no problems found, they suggested I needed to put a...

Hi all, I am missing something really stupid here I think, I have an asa 5505 running 9.1 software, I am trying to use BT infinity broadband with it using an openreach modem connected on port 0. I have tested a direct connect with the openreach modem...

Hi I have a Cisco 1921 Router The Gig 0/0 interface is been sub interfaced for 2 vlans  Gig 0/1 is the WAN interface  I want to have a redundancy for the WAN link which i am planning to achieve by having another Cisco 877 router with an ADSL link. I...

Is not working ?  Pleas advise Executed the following on the ISR 4331.    ntmhomes#configure tEnter configuration commands, one per line. End with CNTL/Z.ntmhomes(config)#service timestamps log datetime localtimentmhomes(config)#ntmhomes(config)#ntmh...

Hello world,What does the "(DNA)" in the below output stand for? The link were originaly being advertised over a virtual-link that I terminated.Also is there anyway to remove those entries from the database?   Thanks in advance.R7#sh ip ospf database...

Since a ping packet doesn't need a default gateway over a pppoe link at L2, how does the communication look like between a local device and a remote device let's say google dns server ?

Hello guys, As far as i know, the gateway of a certain public ip address should be in the range of the ip addres itself. for instance: ip: x.x.x.2 , gw: x.x.x.1 However I've heard from our senior that in case of L2 connections, the gateway isn't real...

Hi Two routers are connected with T1 0/1/1 port through RJ48 cable. The configuration in the two routers is same. but the output of show isdn status is abnormal. Do you think if something is wrong? Please see below relevant configuration: network-cl...