Routing

Hi, I am a little confused as to what the difference is with a router and a firewall. Here is my issue... I understand a router, is for routing, but you can also use a router as a firewall, so what is the use of a firewall such as a Cisco ASA or a So...

HI all, we have two CGS-2520-16S-8PC with links in different directions. All SFP Ports are UP but only the half of it forwarding Traffic. We need all Ports . In one of the Cisco documents I found this hind : "The100BASE-FX SFP ports and the 10/100 Po...

Any idea why I get this error when running backup commands on a 2811 router.  Works on GNS3 with the same exact IOS and router type. switch(config-subif)# description XX-VoIPswitch(config-subif)# encapsulation dot1Q 6switch(config-subif)# no cdp enab...

I have a 2951 routers with 3 T1's connected to controller cards/serial interfaces.  How does the router determine which serial interface to use?  

When there is a GRE/IPSec tunnel off G0/0, and a service policy applied outbound on G0/0 for specific traffic, say IP based ACL, or port based ACL to assign bandwidth limits, and all traffic other than basic routing for the GRE tunnel, flows through ...

Hi All,I am facing the issue in my network where the server using more of our internet bandwidth, so we are planning to apply shaping for the specific servers which are using more bw, but i am confused on how to apply shaping on my WAN interface  sin...

Hi guys . This may sound like stupid questions :) but we have what we have . We have enterprise company with sites around country and sites are connected with L3 MPLS with BGP on the customer edge routers , no any MPLS settings on customer edge route...

Hi everyone,I have a Comcast wireless gateway, a Cisco 2851 router, HP DL380 (used for VMware and UC applications), and a 3750 switch.  I want to be able to run Call Manager and other voice applications, but I think my Comcast wireless gateway is lim...

Hello All,I'm trying to find the QoS dscp value of the source and destination using the sh ip cache flow output. Could you please help me to find the DSCP value used by the source/destination from sh ip cache flow output? Is there any command which w...

We have eight remote sites across the country.  They are currently all interconnected with VPN tunnels.  I'd like to convert these sites to an MPLS cloud.  I've applied for and received our own ASN through ARIN with a /24 public block.  I have a few ...

Hi guys,I am having few days battle with strange and annoying problem. I am hoping someone here can help me.First of all - after all investigation I think problem is in my ADSL Router (Cisco DPC3928) and Internet provider, but they keep telling me th...