最近一套新配的2811上有如下配置，不知道是返修件还是思科的刻意
R2#sh run
Building configuration...
Current configuration : 2384 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R2
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
!
!
ip cef
!
!
ip vrf ***-a
 rd 100:1
 route-target export 100:1
 route-target import 100:1
!
no ip domain lookup
ip multicast-routing
!
multilink bundle-name authenticated
mpls label protocol ldp
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!        
!
voice-card 0
 no dspfarm
!
!
!
!
!
!
!
vtp mode transparent
archive
 log config
 hidekeys
!
!
!
!
!
!
interface Loopback0
 ip address 192.168.0.2 255.255.255.255
!        
interface FastEthernet0/0
 ip address 172.16.0.6 255.255.255.252
 ip pim sparse-mode
 ip ospf authentication message-digest
 ip ospf message-digest-key 10 md5 cnc
 duplex full
 speed 100
 mpls label protocol ldp
 mpls ip
 no mop enabled
!
interface FastEthernet0/1
 no ip address
 duplex full
 speed 100
!
interface FastEthernet0/1.1
 encapsulation dot1Q 1 native
 ip address 172.16.2.5 255.255.255.252
!
interface FastEthernet0/1.20
 description To_PCA2
 encapsulation dot1Q 20
 ip address 10.10.3.1 255.255.255.0
 ip pim sparse-mode
!        
interface FastEthernet0/1.22
 description To_IAD2
 encapsulation dot1Q 22
 ip address 10.10.40.1 255.255.255.0
!        
interface FastEthernet0/1.44
 encapsulation dot1Q 44
 ip vrf forwarding ***-a
 ip address 10.10.44.1 255.255.255.0
!        
interface Serial0/0/0
 no ip address
 shutdown
 clock rate 2000000
!        
router ospf 100
 log-adjacency-changes
 network 10.10.3.0 0.0.0.255 area 22
 network 10.10.40.0 0.0.0.255 area 22
 network 172.16.0.6 0.0.0.0 area 0
 network 172.16.2.4 0.0.0.3 area 22
 network 192.168.0.2 0.0.0.0 area 22
!
router bgp 100
 no synchronization
 bgp log-neighbor-changes
 neighbor 192.168.0.4 remote-as 100
 neighbor 192.168.0.4 update-source Loopback0
 no auto-summary
 !
 address-family ***v4
 neighbor 192.168.0.4 activate
 neighbor 192.168.0.4 send-community extended
 exit-address-family
 !
 address-family ipv4 vrf ***-a
 neighbor 10.10.44.100 remote-as 2000
 neighbor 10.10.44.100 activate
 no synchronization
 network 10.10.44.0 mask 255.255.255.0
 exit-address-family
!
!
!
no ip http server
no ip http secure-server
ip pim rp-address 192.168.0.4
!
!
!
!
!
!
!
control-plane
!
!
!
!
!
!
!
!
!
!
line con 0
 privilege level 15
line aux 0
line vty 0 4
 privilege level 15
 no login
!
scheduler allocate 20000 1000
!
web*** cef
!
end
 
 
下面配置是最多的28的出厂配置，包括2821上都有点象：
 
yourname#sh run
Building configuration...
Current configuration : 1942 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname yourname
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
!
no aaa new-model
!
resource policy
!
no network-clock-participate wic 0
ip subnet-zero
!
!
ip cef   
!
!
ip domain name yourdomain.com
!
username cisco privilege 15 secret 5 $1$qetn$IpMysXtjMP.EWs5PS6luu/
!
!
controller E1 0/0/0
!
!
interface FastEthernet0/0
 description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-FE 0/0$
 ip address 10.10.10.1 255.255.255.248
 duplex auto
 speed auto
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
ip classless
!
ip http server
ip http access-class 23
ip http authentication local
ip http timeout-policy idle 60 life 86400 requests 10000
!
access-list 23 permit 10.10.10.0 0.0.0.7
!
control-plane
!
banner login ^C
-----------------------------------------------------------------------
Cisco Router and Security Device Manager (SDM) is installed on this device.
This feature requires the one-time use of the username "cisco"
with the password "cisco". The default username and password have a privilege level of 15.
Please change these publicly known initial credentials using SDM or the IOS CLI.
Here are the Cisco IOS commands.
username   privilege 15 secret 0
no username cisco
Replace and with the username and password you want to use.
For more information about SDM please follow the instructions in the QUICK START
GUIDE for your router or go to [url]http://www.cisco.com/go/sdm[/url]
-----------------------------------------------------------------------
^C
!
line con 0
 login local
line aux 0
line vty 0 4
 access-class 23 in
 privilege level 15
 login local
 transport input telnet
line vty 5 15
 access-class 23 in
 privilege level 15
 login local
 transport input telnet
!
scheduler allocate 20000 1000
!
end