Routing

I have a question on the ISR 4451. Customer would like 10GE and ISR 4451 does support 10GE for the SFP module but in terms of performance, it support 1Gbps and upgradeable to 2Ggps.   See this chart for the performance information on the 4451:https:/...

Hi, Have an unusual problem with prefix redistribution using route-map and PL The supernet prefix for some reason is not being tagged with communities, and so, isnt being redistributed to our RR's - Smaller prefixes within the supernet are being tagg...

Hello Folks, Greeting! My friend and I were discussing about the host-to-host communication in OSI layer perspective there this question was raised in our mind Why CRC, IP checksum and TCP checksum required in each layer., Is CRC error detection met...

Hi folks, I'm in a big hurry rigt now. I have a link to ISP-A (4Gbps), using static routes and advertising my own public ip block (170.X.X.0/22). Gateway for the ISP-A is 208.X.X.181. Yesterday ISP-A had an accident (fiber cut) and will be several da...

I have a 100 MB ethernet link to AT&T with my Cisco router. I have applied a few ACLs to my inteface that connects to AT&T (fa 0/0). Here are my ACLs:!interface FastEthernet0/0 ip address < omited =) > ip access-group 110 in duplex auto speed auto!in...

Hi, I am doing a network simulation using Cisco Packet Tracer. I could not solve how to do CHAP over TACACS+ server. The situation is as follow: Configure PPP Authentication Protocol on the following devices as listed herewith :- Hostname         PPP...

 Hi, We are planning to implement DMVPN (phase 3)  through internet to connect 100 plus locations (including business critical locations) . These locations are located around the globe including embargoed countries. However , while browsing through v...

Hi I have main HQ and 7 branches and these branches connected to HQ over MPLS . I want to apply backup soulution over internet . what is the best way to do that and i have one router in each branch face to the internet and MPLS .