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Why does cisco 871 stop distributing internet after power failure?
Good afternoon!
I encountered strange behavior of the cisco 871 router. After setting it up, it worked as expected for a while. Then one day the lights went out. After turning on the light, the Internet in the internal network disappeared. The maximum that turned out was to resolve dns.
When I connected via ssh to the router, I saw that its interfaces were up, the Internet was connected. When you try to ping something from the router - everything goes fine. Those. Internet works, but is not distributed.
The first time I solved the problem by plugging the cable into another port. After that, the Internet in the local area began to be distributed. For some time (a month or two), the light was turned off several more times, and I continued to plug the cable into the next port. Today all the ports are over and I don't know what to do.
The ports themselves seem to be fine. At least from LAN, I connect to the router via ssh.
Reboot, of course, does not help.
Here
Interface IP-Address OK? Method Status Protocol
FastEthernet0 unassigned YES unset up up
FastEthernet1 unassigned YES unset up down
FastEthernet2 unassigned YES unset down down
FastEthernet3 unassigned YES unset down down
FastEthernet4 192.168.121.239 YES DHCP up up
Vlan1 10.1.1.1 YES NVRAM up up
NVI0 unassigned YES unset up up
Virtual-Template1 10.1.1.1 YES TFTP down down
Dialer0 94.195.136.246 YES IPCP up up
Virtual-Access1 unassigned YES unset up up
Virtual-Access2 unassigned YES unset down down
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 93.158.134.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 36/37/40 ms
Обмен пакетами с ya.ru [93.158.134.3] с 32 байт данных:
Превышен интервал ожидания для запроса.
Превышен интервал ожидания для запроса.
Превышен интервал ожидания для запроса.
Превышен интервал ожидания для запроса.
Статистика Ping для 93.158.134.3:
Пакетов: отправлено = 4, получено = 0, потеряно = 4
(100% потерь)
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
service internal
!
hostname router
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$HXfL$phmTiK2iUGfh7FJ3T0
!
no aaa new-model
!
resource policy
!
clock timezone Moscow 3
clock summer-time Moscow recurring last Sun Mar 2:00 last Sun Oct 2:00
ip subnet-zero
no ip gratuitous-arps
ip cef
!
!
no ip dhcp use vrf connected
ip dhcp excluded-address 10.1.1.1 10.1.1.99
ip dhcp excluded-address 10.1.1.200
!
ip dhcp pool LAN
network 10.1.1.0 255.255.255.0
dns-server 10.1.1.1
default-router 10.1.1.1
!
!
ip domain name domain.name
ip name-server 8.8.8.8
ip name-server 4.2.2.2
ip name-server 208.67.222.222
ip name-server 208.67.220.220
ip multicast-routing
ip ssh version 2
ip ddns update method DNSupdate
HTTP
add http://login:[email protected]/nic/update?hostname=<h>&myip=<a>
remove http://login:[email protected]/nic/update?hostname=<h>&myip=<a>
interval maximum 1 0 0 0
!
vpdn enable
!
vpdn-group 1
request-dialin
protocol pptp
rotary-group 0
initiate-to ip 192.168.117.249
!
vpdn-group VPN
! Default PPTP VPDN group
accept-dialin
protocol pptp
virtual-template 1
!
!
!
!
username admin secret 5 $1$JpfLO$al4Jzcs/KXRpL3U2As3K1
username remote privilege 0 password 0 password
archive
log config
logging enable
hidekeys
!
!
!
!
!
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface FastEthernet4
mac-address 0015.5898.dd6a
ip address dhcp client-id FastEthernet4
ip access-group RDP in
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
!
interface Virtual-Template1
ip unnumbered Vlan1
peer default ip address pool VPN
no keepalive
ppp encrypt mppe auto
ppp authentication pap chap ms-chap ms-chap-v2
!
interface Vlan1
ip address 10.1.1.1 255.255.255.0
ip nat inside
ip nat enable
ip virtual-reassembly
!
interface Dialer0
mtu 1440
ip ddns update hostname ddns.hostname.com
ip ddns update DNSupdate
ip address negotiated
ip pim dense-mode
ip nat outside
ip virtual-reassembly
encapsulation ppp
ip tcp adjust-mss 1400
dialer in-band
dialer idle-timeout 0
dialer string inter.net
dialer vpdn
dialer-group 1
no cdp enable
ppp chap hostname login
ppp chap password 0 password
!
ip local pool VPN 10.1.1.50 10.1.1.75
ip default-gateway 10.1.1.1
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer0
ip route 192.168.0.0 255.255.0.0 FastEthernet4 dhcp
!
ip dns server
!
no ip http server
no ip http secure-server
ip nat inside source static tcp 10.1.1.200 445 interface FastEthernet4 445
ip nat inside source static tcp 10.1.1.200 139 interface FastEthernet4 139
ip nat inside source static tcp 10.1.1.200 138 interface FastEthernet4 138
ip nat inside source static tcp 10.1.1.200 137 interface FastEthernet4 137
ip nat inside source route-map INTERNET interface Dialer0 overload
ip nat inside source route-map LOCAL interface FastEthernet4 overload
ip nat inside source static tcp 10.1.1.200 3389 interface FastEthernet4 3389
!
ip access-list standard INSIDE_NAT
permit 10.1.1.0 0.0.0.255
!
ip access-list extended RDP
permit tcp host 192.168.104.119 any eq 3389
permit tcp host 192.168.138.132 any eq 3389
permit tcp host 192.168.74.136 any eq 3389
permit tcp host 192.168.138.132 any range 137 139
permit tcp host 192.168.138.132 any eq 445
permit tcp host 192.168.74.119 any range 137 139
permit tcp host 192.168.74.119 any eq 445
deny tcp any any eq 3389 log
deny tcp any any range 137 139
deny tcp any any eq 445
permit ip any any
!
dialer-list 1 protocol ip permit
!
route-map INTERNET permit 10
match ip address INSIDE_NAT
match interface Dialer0
!
route-map LOCAL permit 10
match ip address INSIDE_NAT
match interface FastEthernet4
!
!
control-plane
!
!
line con 0
logging synchronous
no modem enable
line aux 0
line vty 0 4
login local
transport input ssh
!
scheduler max-task-time 5000
ntp clock-period 17175009
ntp master
ntp server 67.215.65.132
ntp server 91.236.251.12
end
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If it's under warranty take it to a service center.
Generally a strange situation. Your local network is working. WiFi I assume the same.
But from the local network you can not access the Internet. Connecting from the local network to the router, you can ping from this Yandex - we understand that the Internet is, as it were, but it does not reach local users ... and all this after power surges.
Try resetting everything to factory settings. And think about the uninterruptible.
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