Switching

Hi, I wonder if you can help me, I am getting this error on both my edge switches - 10 16:09:04: %SW_MATM-4-MACFLAP_NOTIF: Host 000e.d771.089e in vlan 12 is flapping between port Gi1/0/23 and port Gi1/0/25 - see below.Both switches are connected toge...

Hello ExpertsMy home broadband has just been upgraded to ADSL2 and my cisco 857 doesn't recognise the ADSL line anymore.Its got 12.4(6). The wan interface is reads ATMoPOTS.Some forums say that the Firmware needs upgrading. Some say the IOS needs upg...

Is it possible to define only this range of hosts: 192.168.80.200-254 /24 in standard ACL without entering each host per line?Thank you.ip access-list standard PAT permit 192.168.80.200 permit 192.168.80.201.. permit 192.168.80.254Any other ways?

I am installing a 2600 Router, after configuring the router's fa0/0 for LAN with a private ip address and configure interface fa0/1 for WAN, the router cannot route packets from LAN to WAN. My ISP is using a modem that assigns dynamic private ip addr...

Hello,I have 2 routers in my lab connected together via the serial ports, on Router 1 I want any IP from 192.168.100.192/27 (Fas0/0) to get NAT'ed to 172.16.1.2-254 when going over the WAN.If I use my laptop on 192.168.100.194 and ping 192.168.100.97...

Hii Everybody,I am new to the VLANS , so i would like to have suggestions from you people .I have a 10 MB Internet >> connected to Firewall >> connected to L3 Switch >> There are about 40 L2 switches beneath this L3 Switch with no STP as the physical...

Which do you prefer and why? We utilize Engineer's Toolset 9.2, but in my limited exposure to OpUtils I am impressed with some of the features. An example would be the ability to schedule regular config downloads in the Config File Manager. I don't s...

I am currently studying 802.1D and 802.1w, I have a few questions:1. STP election is in the sequence of electing root bridge, root ports and than designated ports.how does BPDUS are sent when the port at initial state is in blocking state ?2.does thi...

what is the use of learning state in rstp, since rstp does not use timers to forward a port after being in learning state for 15 secs

Does anyone know the link to the SRND site. I am trying to get some network design ideas for a project. Thanks.Mario

I have 2 Access switch (6513) having multtiple VLAN , All are enabled for DHCP , But only sigle VLAN i am not getting DHCP IP , But Same time my reduntant switch same vlan i am able to get DHCP.

Hello Everyone,Currently in our data center, we have a Cisco 6513 as the core ,a single Dell m1000e blade center containing a pair of Cisco 3130G switches, and a pair of Cat 3550 switches for the DMZ (plus a load of other stuff not needing to be ment...