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Resolved! why subnet was not used in past

Hi every bodyI   am wondering why  the subnet 0 was not used in past even when classless routing protocol was in use. My book gives the following reason which i don't agree with." For example for class b network 150.150.0.0/16, the zero subnet would ...

sarahr202 by • Level 5
  • 997 Views
  • 4 replies
  • 0 Helpful votes

Resolved! NAT Issue

Hello All Experts,We have Cisco 877 w router, I plugged Polycom video Conferencing unit  into Cisco, & gave Static IP 10.10.10.2,  I am able to access this unit on browser by http://10.10.10.2, we have Public Ip address 203.X.X.X as soon someone dial...

ISR G2 3900 and Port-channels

We have a 3900 series G2 running 15.0(1)M4. It seems there are alot of differences with the 15.0 code. I was intrigued by the ability to do a port-channel on the router instead of having to use something like HSRP or GLBP for HA.  The router is going...

2960 ingress forwarding

Hi,I tested obtain IP through 2950 and 2960 model. My PC connected to interface g0/19 which configured be mirror port.My configured on both models are identicalmonitor session 1 source interface g0/11monitor session 1 destination interface g0/19 ingr...

Rojer-bkk by • Level 1
  • 1109 Views
  • 6 replies
  • 0 Helpful votes

Resolved! boot up process and config-register router.

Hi every body.My book says  the value of config-register is stored in nvram.  Let say our config register value is( boot field) is 1, which means  load the ios from first ios file in flash.  Let say we power on our router( cold start) ,following sequ...

sarahr202 by • Level 5
  • 1624 Views
  • 1 replies
  • 0 Helpful votes

Sup720 ios upgrade

i have Cisco 6509-E series sup 720 with ios version. I want upgrade same sup 720 in different 6506 (without E)  and put in 6509-E. Is it possible?

cssam by • Level 1
  • 819 Views
  • 1 replies
  • 0 Helpful votes

3750 pumping error messege.

Hi Team,               I was configuring 3750 stack, I am supposed to run bgp on it. after making a VLAN , i got an err messege as below.PSECURE: Assert failure: 0: ../switch/psecure/psecure_ifc.c: 291: psecure_get_vlanid-Traceback= 7BCADC 7C149C 7BA...

Resolved! 6513 flash and IOS requirements

Hello All- Upgrading IOS image on our 6513s from 12.2(18)SXF7 to SXI4a or SXI5. Memory requirements are512MB DRAM and 512 MB Flash. Appears we have 512/64:System image file is "disk0:s72033-advipservicesk9_wan-mz.122-18.SXF7.bin"cisco Catalyst 6000 (...

7613 High CPU utilization

We have a Cisco 7613 router and we are using it to aggregate the customer on through ethernet and E1s. The CPU utilization reached 84 % since the last couple of weeks. Below is the " show proc cpu sorted" command.CPU utilization for five seconds: 80%...

Intermittent Issue

Hi,My network consists of 2 sites (A & B). Both sites each have 2 units of Cisco 6506 switches. Between Core1 & Core 2 both  are running HSRP.All the active gateways are at Core 1 & standby at Core 2. Both sites are connected via DWDM which physicall...

ganeshp by • Level 1
  • 597 Views
  • 1 replies
  • 0 Helpful votes
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