Routing

Hi All,  I have a 887VA ISR router with very poor ADSL performance. WAN throughput is around 1mbit/s and often drops below 100kbp/s! Testing I have done includes swapping the Cisco for a Huawei ADSL modem, connected to the same ADSL line. Throughput ...

Hi, What are the troubleshooting steps to troubleshoot a multicast issue? My host is both a source and receiver to a multicast group. While I am able to send data out (verified by looking at other hosts outside of my network) I cannot receive. What a...

Is there any way of using key chains for authentication with OSPF like you can do for EIGRP? I want to be able to age and introduce new passwords for one of my OSPF areas and without key chains I dont think I will be able to do it. Any help would b...

I have private community VLAN.  I am able to ping the gateway; however, I cannot ping any of the hosts within the community VLAN. Do I require VACLs to allow this?

I have private community VLAN.  I am able to ping the gateway; however, I cannot ping any of the hosts within the community VLAN. Do I require VACLs to allow this?

Hi, I am facing an issue while creating an Redundancy between 2 Cisco 3925 Router - CME. We have Cisco 7821, 7841 & 7861 Model Telephones which will support only SIP. When i create an HSRP in the router it is allowing only the TFTP packets not the S...

Hi all, I'm using a CISCO2911 with IOS c2900-universalk9-mz.SPA.154-3.M2.bin. I have two(2) Internet connections, and I have this issue: I am forced to use the "permanent" keyword, in my static route, so that the router can forward the packets to the...

Product documentation states that Cisco series 880 routers have a built-in Layer 2 switch. Does such documentation simply refer to the default configuration of the LAN interfaces or is it not possible to reconfigure the four LAN ports serving differe...

Hello, I currently have a 2911 router running NAT and CBAC protecting a guest wireless network.  the wireless network authenticates against an ISE server and grants guest users internet access thru the 2911.  The wireless traffic goes thru a 2504 wi...

Hi, I've recently upgraded two edge routers used for BGP, from 2921s on IOS 15.0(ar)M15 to 4451s on IOS-XE 03.13.02.S I use BGP prepending to influence inbound routing from my ISP (each router has a dedicated circuit to the same ISP). Using the old h...

I have router A connecting to ISP A and router B connecting to ISP B.I have 2 routers (prefixes) to be advertised.Under normal conditions, I want to have prefix A advertised to ISP A only and prefix B advertised to ISP B only.If router A or ISP A sho...