Routing

Hello,   Could someone please help me understand why do we really need 2 interfaces at both ends of a GRE tunnel?Once we create a virtual tunnel interface, why is that interface not used as a source interface? Why we need to use another interface as ...

Hi,   After upgrading IOS from 12.4 to 15.1 version (2800 routers), we lost availability of receiving multicast packets on serial dial-up lines.   The serial config is simple: interface Serial0/0/0 physical-layer async ip unnumbered Loopback0 ip p...

Hi,I am using a EHWIC-4G-LTE-GB card with MC7304 4G-GB modem for a DMVPN solution. I have an issue, where one of my routers appears to be cell hoping. Is there a command to force it to a particular cell.   Network Information===================Curren...

Im having issues routing traffic using static multi-hop routing over layer 3 switches. Due to political reasons I'm limited to static routing rather than a dynamic protocol. Each site has a 3560 layer 3 switch. I currently have a topology of 3 sepera...

Hi all,   We are in the process of replacing a very old core router that works as the network's default gateway:     network: 10.1.0.0/16 (flat, no VLANs) ASA SSL VPN remotepool: 172.1.1.0/24   All the router does here is be the default gateway for ...

I am receiving routes via BGP from a cloud provider. The provider is sending overlapping routes.  For example, 10.0.0.0/8 and 10.1.0.0/16.  I would like to filter the component route as it's learned from the cloud provider.  So in my example, keep th...

Does the POE switches (ex.SF300-24PP) needed monthly reboot when do maintenance ?

Good Day, I have been searching for the best solution to combine 2 circuits for redundancy and to combine their bandwidth.   We have 2 sites currently connected via a provider circuit with 2 different paths. We would like to get another circuit from ...

Does the asr 9001 ship with a console cable ? The normal console cable does not seems to work ( used 115200 8N1 and No Flow).Did any one have difficulties connecting the asr 9001 for the first time ?  

I'm having a issue with IP SLA and TRACK, the IP SLA sometimes gets the status of timeout and TRACK stay down and returns only after I run a ping test, in my monitoring tool and testing a ping from my router I never see a ping fail, the strange is th...

Hi Everyone,   We're teaming between 2 4500 switches (it works as active-passive) that we deploy as backbone switches. we are teaming 2 ports from 4500 to edge switches are active while some VOIPs are done but some are not. But when we command shutdo...

Hello.   What I would like to have:     Border is used exclusively for IPv4 routing    Two peers with BGP Full View    Ports 100GB x 2; 10GB x 6; 1GB x 4    The total traffic is about 12Gbps    Redundancy (VSS, HSRP, VRRP, ???)   At the moment, these...

Hi everyone,   We are facing an issue with Multicast using PIM-SM (ASM). All devices seem to be configured correctly but the multicast streams do not work as expected. Bellow the description of the behavior using the information provided in the diagr...