Есть CIsco 1760 и доп. плата к ней WIC-4ESW. Настройка выглядит так:

version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname cisco1
!
boot-start-marker
boot-end-marker
!
enable password <removed>
!
aaa new-model
!
!
!
aaa session-id common
ip cef
!
!
!
!
!
!
!
bridge irb
!
!
interface FastEthernet0/0
ip address 192.44.4.102 255.255.255.0 secondary  // для Web'a
ip address 10.1.1.2 255.255.0.0                  // во внешний мир
speed auto
!
interface Serial0/0
no ip address
shutdown
!
interface FastEthernet1/1
switchport access vlan 100
!
interface FastEthernet1/2
switchport access vlan 200
!
interface FastEthernet1/3
switchport access vlan 300
!
interface FastEthernet1/4
switchport access vlan 400
!
interface Vlan1
no ip address
!
interface Vlan100
no ip address
bridge-group 100
bridge-group 100 spanning-disabled
!
interface BVI100
ip address 20.21.1.1 255.255.0.0   // от внутренней сети
!
ip route profile
ip route 20.20.0.0 255.255.0.0 10.1.0.0
!
ip http server
!
!
control-plane
!
!
line con 0
line aux 0
line vty 0 4
!
end

fa1/1 - up
vlan100 - up
BVI100 - up

Почему тогда не пингуется 20.21.1.1 ????? Что не так???
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