I've installed a 2950 into my domestic LAN from a site that was no longer using it. I've removed the existing config, it was working in conjunction with an Allied Teleysn AR-440 router for handling the incoming WAN connection and DHCP requirements. I have a Linksys router at home and have run out of wired ports so I'm hoping to replace it with the 2950.
I have a static address from my ISP in the range 80.249.x.x with a subnet of 255.255.255.224. I then have a 192.168.1.x local LAN with several devices also assigned static addresses. Is there a way of configuring say FastEthernet 24 to the required static IP on VLAN 1 and then have the switch provide correct local LAN addresses with access to VLAN 1?
If you want to assign a static IP for the switch in Vlan1, use the ip address command in interface configuration mode for interface Vlan1 as follows.
ip address x.x.x.x y.y.y.y
By default, all ports should be in vlan 1 already, however, you can change it per-port by using the switchport mode access command in conjunction with the switchport access vlan 1 command under interface FastEthernet0/24 configuration.
Please note that the 2950 is not capable of IP routing nor IP NAT (Network Address Translation), therefore it cannot provide internet connection on it's own to clients with a private (192.168.x.x) IP range without a router in your network.
A DHCP server is basically allocating IP addresses to clients on the subnet. Simplified, it is just a running process/application which is monitoring broadcast packets on the network and sending replies which contain the allocatable IP address. The DHCP server does not route packets, it's not the default router usually. The 2950 switch is still a L2 device and cannot route packets but can act as a simple DHCP server for your subnet.
In SOHO and small home routers, usually the DHCP server and router itself is integrated in the same device. In those cases, the DHCP server is still just an application and when it allocates an IP address, it sets the default router IP to be the device itself.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.