Other Network Architecture Subjects

Hello all Can someone tell me if you can have a network of e.g 172.19.55.0 with a mask of 255.255.252.0Also when subnetting what ip address would you put your router on and what mask, would it have to be in the range you applied and the same mask ?th...

I was setting up two VLAN interfaces for my 3550. I had two VLAN interfaces. One for VLAN 10 and one for VLAN 15. After configuring each VLAN Interface, VLAN 15 was down and wouldnt come up. VLAN 10 was up however. After issuing the no shutdown ...

I'm facing strange problem in our NEW network , when users moves from VLAN 16 to VLAN 17 they still getting IPs from DHCP scope of VLAN 16 . Same for other VLANs.DHCP server---- win 2003Switch ---------cat3560Core cat6509When I give the us...

Dear all,Need your comment in this problem. Yesterday , while users were connected to the network,suddenly they experienced a drop of connection ; i.e they were disconnected from the network.Upon observation, we realised that the 2950 catalyst switch...

Experienced a power loss while remotely uploading a new configuration to a WS-C2924-XL (running IOS 12.0(5)WC8). I am unable to authenticate since the device reloaded.I know that part of the config was successfully uploaded because I am being prompte...

We are building country-wide fiber-optical network and I am seeking for advise regarding building core network for telecom and ISP network providing Internet access via Dialup, PPPoE, xDSL over IP, VoIP, VPN and other services with respect of SLAs/Qo...

I have a Cisco 2950 on which I have configured vlan3 and vlan4. I've assigned half the ports to vlan3 and the other half to vlan4. When I do a "show int vlan3" and "show int vlan4", one of the vlans is up and other is down. I go to the interface t...

I have been looking at 802.1x and Voice VLANs and I can see what I think is a bit of a security hole.If a user has no authentication details to gain access via 802.1x - i.e. they have not been given a User ID or the PC doesn't have a certificate etc....

Hello,We have a Cat4503 with sup4 and ios 12.2.25EWA1 installed.The switch is configured with a lot of vlans (176) and big acl's.Even with the command access-list hardware entries scattered applied, i got the following error messages:%C4K_HWACLMAN-4-...

I have several segments routed by several Catalysts 3550. In one of the segments i start multicast TV streamer. I use IGMP and PIM to route the multicast. But how to restrict the clients only to receive multicast TV stream not to send multicast traff...

We'll use 2 subnets on Cat3550 switch.(192.168.1.0/24 and 192.168.2.0/24)The switch has 2 VLANs and each VLANs have 12 physical ports.I'd like use DHCP relay on each VLAN.for example,service dhcpinterface fa0/1swichportswitch mode accessswitch access...

i need to know regarding to logging:i want to see when i do show logging ,who try to connect to my router or who try to connect to my router and make mistake with the password.is it the command "logging buffered 10000 debugging" and "logging consol"w...

Hi,I am facing a problem with port security in 2950 & 3550 switch. I have configured port security as below.interface FastEthernet0/6 port security max-mac-count 1 port security action shutdown port storm-control broadcast action shutdown port storm-...