Hello,   I have a huge network issue that I am hoping someone smarter than me will be able to solve. I recently lost my configuration when attempting to reset the password for our Cisco 3560g switch, the switch connects to a Cisco 4506 switch via fiber back to our main office. I have the switch temporarily routing all traffic to our 4506 by using the default route of 0.0.0.0 0.0.0.0 10.10.10.254 but the same switch is connected to a cisco 2600 router that is on a 10.10.20.0 network and the 3560g is on a 10.0.0.0 network. Host computers sit on the 10.0.0.0 network, but they need to go to the 10.10.10.0 network for internet, domain, etc the same computers need to go to the 10.10.10.20 for remote connections and other services. The address of the 3560g is: 10.0.0.254 The address of the 2600 is 10.10.20.2 When the default route is set to 0.0.0.0 0.0.0.0 10.10.10.254 (4560 switch) domain browsing works perfectly When the default route is set to 0.0.0.0 0.0.0.0 10.10.20.2 (3560G) switch I can ping any ip address in that range and the address on the other interface ip adresses on the 2600 (eg. 10.10.30.1 / eth2, 10.10.40.1/ eth3 etc.) So I know the router is working, and it's configuration hasn't changed at all. I have tried to weight the routes after adding them both to the configuration, but that doesn't seem to help at all. The switch connects back to the office via vlan1 (10.10.10.253) The 2600 is connected to port 1, which belongs to Vlan2 (10.10.20.1) And client computers sit on ports 2-12 belonging to Vlan10 (10.0.0.240) So in a nut shell, how would I go about setting it up so the machines on 10.0.0.0 can connect to 10.10.20.0 and 10.10.10.0 and vice versa at the same time? Everything was working fine until I rebooted the switch (3560g), which makes me think the person that configured this before me didn't save the running config to the start up config. ... View more

Hello,   Thanks to jon.marshall's help, I was able to get a secondary ip address on Vlan1 of my router. I have assigned secondary ip addresses to my servers (DNS, WINS) and I can ping them on the old class C subnet and on the new class B subnet. But I can't seem to be able to get out to the internet. My plan is essentially to drop the old class C subnet once I get the new class B subnet up and running. But I seem to be missing something, I can't ping my PIX firewall once I manually assign a class B address to my computer. I can ping the router and the HSRP on the old and new address schemes, but traffic stops dead trying to get out of the router. I have a static route set as  0.0.0.0 / 0.0.0.0 / 10.10.10.250 (pix) so that should allow all traffic out of the router to the PIX regardless of the address, correct? I'm sure it's something simple, but I fear I might be in over my head for the time being. Any help or advice would be appreciated. ... View more

First let me preface this by saying that I am still in the process of becoming familiar with Cisco equipment, I am trying to consume as much information as I can but I still need some assistance from people that are smarter than I am to ensure I don't find myself in a situation that I can't get out of. I am running out of addresses on our network, a network that I just inherited. I need to resubnet the devices in our network but I would like to keep traffic from our old ip addresses / subnets going while I do this. I am assuming that I need to create two address on our vlans, is this correct? My network currently looks like this: Vlan 1: 10.10.10.X / 255.255.255.0 Vlan 3: 10.10.3.X / 255.255.255.0 Vlan 10: 10.0.0.X / 255.255.255.0 Vlan 45: 192.168.45.X / 255.255.255.0 Vlan 50: 192.168.50.X / 255.255.255.0 I am running a Cisco 4506 Switch that points to a Cisco PIX firewall. I would like to jump to another subnet, but I don't want to be hunted down in the street by my fellow employees for taking down the network. So, if I can add the second subnet and ip address scheme to the vlan, how would I go about properly doing this? Or if I can't, would someone have a sugestion on what I can do to resubnet, but keep the existing network running in the mean time? Also, would anyone have any ideas on a suitable cisco produced replacement for the small 3550 switches we have? Thanks for the help. ... View more