Routing

Routing for new WAN design

Hi, We are about to change to a new WAN design for 4 site.Currently, 4 site is connected using leased line.We have opted to change WAN to MetroE / IPVPN. The ISP gave us the information and ask to configure BGP. Currently we are using static route. I...

Routing and Switching Essentials Companion Guide activity wizard password? I can't edit them to create new files for curriculum.

Normally I use source files to make minor changes to challenge my students. However, with the new book "Routing and Switching Essentials Companion Guide" .. I can't seem to use the activity wizard in way I previously did. Did the log-in methods chang...

Local DNS with NAT NVI Failing

I'm having an issue with my cisco 1921 router not forwarding DNS requests to our local DNS server. I recently set up NAT NVI and after doing so DNS is no longer being passed between the few VLANS that are in place.The DNS server for this domain is lo...

Resolved! 3750 high drops on port facing WAN

I have been seeing drops on my port facing my WAN lately. We have a 50mbps pipe going out. I realize the port is set to 100 (hard set for ISP device) but I would think the drops spiking over 50mbps would be on the ISP's equipment. QOS is enabled on t...

BGP as-path prepend using route map and ip prefix-list causing issues

HI,At my location B, I want to advertise Location A subnets but prepend to make less preferred. I start having issues on Location B WAN circuit when apply config route-map BGP_Filter_Out_MPLS permit 10 match ip address prefix-list LocationA-Subne...

Interested Traffic ACL in Tunnel Protection Config

Hi Experts - Generally I configure IPSEC Site-Site VPN using Crypto map, defining the peer and match address (ACL for Interested Traffic) and finally binding the Crypto-map in the Tunnel or Interface Now, i am configuring the IPSEC site-site VPN usin...

EIGRP auto summary problem

Hi,If R1<-----> R2<-------> R3 are running EIGRP.R1- configured with no-auto-summaryR2 and R3 : auto-summary (default).R1 is publishing 10.1.1.0/24 , 10.1.2.0/24 and 192.168.1.0 / 26 , 192.168.1.64 /26 networks on R3 it was expeted that routing tab...

DPC3925 no CPC signal

Been using DPC3925 provided by my service provider here in Singapore (Starhub). Have used 3 different telephone brands but still have the same issue: the line remains connected (with busy signal) even after the other party hangs-up already. I suspect...

QOS Setup

Dear All, Client was asking us to enable the port 55001 and 55002 to run on QOS on the WAN Link. Kindly advise how to configure and enable the port. Thank You. policy-map QOS class SilverAF31-Map set ip dscp af31 police cir percent 50 bc 300 ms pi...

ISR 4451 memory allocation

Hi All, I want to use ISR-4451 as an Internet CPE for dual-homed Full BGP customer. There are two IPv4 and two IPv6 Full BGP sessions and it consumes significant amount of memory.There is memory extended to 8GB in this router but IOS XE is using just...

Resolved! (Etherchannel)Can I bundle two different type of interface a fastethernet with gigabitethernet?

(Etherchannel)Can I bundle two different type of interface a fastethernet with gigabitethernet?

888 Router, Universal image en BGP support

Hello, we have a customer with a 888 SDSL router at one of the branches. The router initially ran 15.1(4)M5 with only the basic license (adv. security) but that version lacks BGP support which is needed for the private VPN of the customer. After some...

does debug ip OSPF adjacency will cause high CPU

Hello All,We are finding a OSPF flapping issue on Cisco 3750x switches. To isolate the issue TAC has suggested "debug ip ospf adj" Does this command will cause high CPU utilization? There are 12 OSPF neighbours connected to that switch and we have th...

iBGP over external channel is it possible

Hello,Help me pls,is it possible to connect over iBGP some geo-sites over external link without dedicated internal link between locations?Let there is three sites and each site connected to Internet but threre is no connection over WAN link between s...

After Flexlink Active link down, why other PC or network devices can send ARP packet?

Hello allI have a question about basic Flexlink. I appreciate any related information.Here is the network topology below.############################################################################# (FlexLink...