Question : Cisco 2950 24 port - VLANs configured, ports added, they even work - but config tells me VLAN2 is administratively down??

Hi, as mentioned above, I have created two VLANs on a 2950 switch and added ports to port VLANS. I have tested this and it works, I can ping within the VLANs but not between them. Excellent. What I also want to do is assign both VLANs a management IP address so that I can telnet to them and access them when they're on the remote site. I've assigned an IP to VLAN 2 but when I look at the VLAN's properties it says it's administratively down. What haven't I done?

sh int vlan 2

VLAN2 is administratively down, line protocol is down
  Hardware is CPU Interface, address is 0030.8028.7440 (bia 0030.8028.7440)
  Internet address is 192.168.0.253/24
  MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
     reliability 255
  Encapsulation ARPA
  ARP type: ARPA, ARP Timeout 04:00:00

sh vlan

VLAN Name                             Status    Ports
---- -------------------------------- --------- -------------------------------
1    default                          active
2    internal                         active
             Fa0/5, Fa0/6, Fa0/7, Fa0/8,
                                                Fa0/9, Fa0/10, Fa0/11, Fa0/12,
                                                Fa0/13, Fa0/14, Fa0/15, Fa0/16
3     active    Fa0/17, Fa0/18, Fa0/19, Fa0/20,
                                                Fa0/21, Fa0/22, Fa0/23, Fa0/24
1002 fddi-default                     active
1003 token-ring-default               active
1004 fddinet
1005 trnet-default                    active

VLAN Type  SAID       MTU   Parent RingNo BridgeNo Stp  BrdgMode Trans1 Trans2
---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------
1    enet  100001       -        0      0
2    enet  100002     1500  -      -      -        -    -        0      0
3    enet  100003     1500  -      -      -        -    -        0      0
1002 fddi  101002     1500  -      -      -        -     101003     1500  -
 -      -        -    -        0      0
1004 fdnet 101004     1500  -      -      -        ieee -        0      0
1005 trnet 101005     1500  -      -      -        ibm  -        0      0
Switch#

(I know it looks like not all of the first bunch of ports are in VLAN 2, but they are, my terminal software is being buggy). Can anyone recommend some freeware terminal software by the way?

Also, last couple of questions, can I configure the switch to authenticate telnet/ssh sessions by RADIUS? How do I set the telnet/enable passwords?

Thanks.

George

Answer : Cisco 2950 24 port - VLANs configured, ports added, they even work - but config tells me VLAN2 is administratively down??

switch#config t
switch(config)#interface vlan2
switch(config)#no shut
switch(config)#exit
switch#

Additionally, any one of the actual physical ports in vlan2 must be plugged into something.