Introduction: The article includes a video showing step by step procedure for the IOS upgrade on 6500 with single SUP720. Prerequisites: Basic understanding of:- -IOS CLI. -Architecture of 6500 and SUP720. -TFTP protocol. Requirements: TFTP server:- -The ip address of the TFTP server should be reachable from the 6500. -Download the required IOS image in TFTP root. Components Used: 6500 set up with SUP720-3B. Windows machine with TFTP server application. Configurations: Basic routing/ip addressing configurations, so that there is network connectivity between 6500 and TFTP server. IOS image file "s72033-adventerprisek9-mz.151-2.SY6.bin" copied to TFTP ROOT folder. Network Diagram:   ... View more

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    Hi Crazo,   Thanks for the reply and the rating. -- With best regards, Sandesh Sawant.   . ... View more

    Hi, Yes, you need to have different subnet for each vlan. Let us consider you are having 3 vlans 10, 20 and 30. Vlan 10 : 192.168.10.0/24 Vlan 20 : 192.168.20.0/24 Vlan 30 : 192.168.30.0/24 This switch interface vlan is the default gateway for the respective hosts in respective vlans.   Configuration :   Configure vlan 10, 20 and 30. ! interface Vlan10  ip address 192.168.10.1 255.255.255.0  no shut ! interface Vlan20  ip address 192.168.20.1 255.255.255.0  no shut ! interface Vlan30  ip address 192.168.30.1 255.255.255.0  no shut !   ! ip dhcp excluded-address 192.168.10.1 192.168.10.10 ip dhcp excluded-address 192.168.20.1 192.168.20.10 ip dhcp excluded-address 192.168.30.1 192.168.30.10 !          ip dhcp pool vlan10    network 192.168.10.0 255.255.255.0    default-router 192.168.10.1     lease infinite ! ip dhcp pool vlan20    network 192.168.20.0 255.255.255.0    default-router 192.168.20.1     lease infinite ! ip dhcp pool vlan30    network 192.168.30.0 255.255.255.0    default-router 192.168.30.1     lease infinite !   There are multiple options in DHCP configuration. Configure as per your requirement. e.g. Cisco-switch(config)#ip dhcp pool vlan10 Cisco-switch(dhcp-config)#? DHCP pool configuration commands:   accounting           Send Accounting Start/Stop messages   address              Configure a reserved address   bootfile             Boot file name   class                Specify a DHCP class   client-identifier    Client identifier   client-name          Client name   default-router       Default routers   dns-server           DNS servers   domain-name          Domain name   exit                 Exit from DHCP pool configuration mode   hardware-address     Client hardware address   host                 Client IP address and mask   import               Programatically importing DHCP option parameters   lease                Address lease time   netbios-name-server  NetBIOS (WINS) name servers   netbios-node-type    NetBIOS node type   network              Network number and mask   next-server          Next server in boot process   no                   Negate a command or set its defaults   option               Raw DHCP options   origin               Configure the origin of the pool   relay                Function as a DHCP relay   remember             Remember released bindings   renew                Configure renewal policy   reserved-only        Only allocate reserved addresses   server               Configure the server ID option value   subnet               Subnet allocation commands   update               Dynamic updates   utilization          Configure various utilization parameters   vrf                  Associate this pool with a VRF     To check if its working fine please use command below,   Cisco-switch#show  ip dhcp binding  Bindings from all pools not associated with VRF: IP address          Client-ID/             Lease expiration        Type             Hardware address/             User name !   Also refer the links below, https://supportforums.cisco.com/discussion/10791041/how-configure-cisco-switch-3750-dhcp-2-vlan http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12-2_52_se/configuration/guide/3750scg/swipaddr.html#wp1094520   Hope this helps. -- Sandesh Sawant.     . <rate if useful >   ... View more