Здравствуйте, подскажите в какую сторону смотреть есть cisco 881 конфиг простой:
Building configuration...

Current configuration : 1040 bytes
!
! Last configuration change at 08:07:58 UTC Thu Jun 15 2023
!
version 15.5
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Cisco_881_PVO
!
boot-start-marker
boot-end-marker
!
!
no logging console
!
no aaa new-model
ethernet lmi ce
memory-size iomem 10
!
!
ip cef
no ipv6 cef
!
!
license udi pid C881-K9 sn FCZ194293Q7
!
!
interface FastEthernet0
switchport mode trunk
no ip address
!
interface FastEthernet1
no ip address
!
interface FastEthernet2
no ip address
!
interface FastEthernet3
no ip address
!
interface FastEthernet4
no ip address
duplex auto
speed auto
!
interface Vlan1
no ip address
!
interface Vlan703
no ip address
!
interface Vlan707
no ip address
!
interface Vlan708
ip address 20.10.4.239 255.255.255.0
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
!
!
!
!
line con 0
no modem enable
line aux 0
line vty 0 4
login
transport input none
!
scheduler allocate 20000 1000
!
end

Cisco_881_PVO# tada dase
                ^
% Invalid input detected at '^' marker.

Cisco_881_PVO#data base
               ^
% Invalid input detected at '^' marker.

Cisco_881_PVO#vtp domain autotest
                  ^
% Invalid input detected at '^' marker.

Cisco_881_PVO#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
Cisco_881_PVO(config)#vtp domain autotest
Changing VTP domain name from NULL to autotest
Cisco_881_PVO(config)#vtp mode transparent
Setting device to VTP TRANSPARENT mode.
Cisco_881_PVO(config)#Setting device to VTP TRANSPARENT mode.
Cisco_881_PVO#sh run
Building configuration...

Current configuration : 1148 bytes
!
! Last configuration change at 08:20:50 UTC Thu Jun 15 2023
!
version 15.5
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Cisco_881_PVO
!
boot-start-marker
boot-end-marker
!
!
no logging console
!
no aaa new-model
ethernet lmi ce
memory-size iomem 10
!
!
ip cef
no ipv6 cef
!
!
license udi pid C881-K9 sn FCZ194293Q7
!
!
vtp domain autotest
vtp mode transparent
!
!
vlan 703
name LAN_TEU
!
vlan 707
name CAM
!
vlan 708
name LAN
!
!
interface FastEthernet0
switchport mode trunk
no ip address
!
interface FastEthernet1
no ip address
!
interface FastEthernet2
no ip address
!
interface FastEthernet3
no ip address
!
interface FastEthernet4
no ip address
duplex auto
speed auto
!
interface Vlan1
no ip address
!
interface Vlan703
no ip address
!
interface Vlan707
no ip address
!
interface Vlan708
ip address 20.10.4.239 255.255.255.0
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
line con 0
no modem enable
line aux 0
line vty 0 4
login
transport input none
!
scheduler allocate 20000 1000
!
end\
Ноутом (20.10.4.239) встаем на interface FastEthernet0 пинга нет, но пишет 100% отправлено пакетов. по telnet  то же зайти не дает(