networking:cisco-1841-config-nat
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ADSL 1841 NAT config
Almost nothing yet
DNS server
configure terminal ip dns server ip domain lookup ip name-server 1.1.1.1 ip host printer.int.domain.com 192.168.1.41 end
Current configuration : 3678 bytes ! ! Last configuration change at 20:35:55 BST Tue May 12 2026 ! NVRAM config last updated at 12:24:03 BST Mon Apr 20 2026 ! NVRAM config last updated at 12:24:03 BST Mon Apr 20 2026 version 15.1 service timestamps debug datetime msec service timestamps log datetime msec service password-encryption ! hostname 1841-isp ! boot-start-marker boot system flash:c1841-advipservicesk9-mz.151-4.M6.bin boot-end-marker ! ! logging buffered 51200 warnings enable secret 5 $T0P_Secret ! no aaa new-model ! clock timezone GMT 0 0 clock summer-time BST recurring 4 Sun Mar 1:00 4 Sun Oct 2:00 dot11 syslog ip source-route ! ! ip dhcp excluded-address 192.168.58.1 192.168.58.100 ! ip dhcp pool lan network 192.168.58.0 255.255.255.0 default-router 192.168.58.1 dns-server 1.1.1.1 domain-name rainsbrook.co.uk ! ! ! ip cef ip domain list rainsbrook.co.uk ip domain name rainsbrook.co.uk ip name-server 1.1.1.1 ipv6 source-route ipv6 unicast-routing ipv6 cef ipv6 multicast-routing ! multilink bundle-name authenticated ! crypto pki token default removal timeout 0 ! ! ! ! license udi pid CISCO1841 sn FCZ14096XXX username admin password 7 not_quite_so_secret ! redundancy ! ! ip ssh time-out 60 ! ! interface FastEthernet0/0 description LAN ip address 192.168.123.1 255.255.255.0 ip nat inside ip virtual-reassembly in duplex auto speed auto ! interface FastEthernet0/1 description WAN to ISP no ip address duplex auto speed auto pppoe enable group global pppoe-client dial-pool-number 1 ! interface Dialer0 description WAN link to ISP ip address negotiated ip nat outside ip virtual-reassembly in encapsulation ppp dialer pool 1 dialer idle-timeout 0 dialer persistent dialer-group 1 ipv6 enable ipv6 traffic-filter adsl-ipv6 in ppp chap hostname user1234@a.1 ppp chap password 7 1234abcd1234abcd ! ip forward-protocol nd no ip http server no ip http secure-server ! ! ip dns server ip dns spoofing ip nat inside source list 1 interface Dialer0 overload ip route 0.0.0.0 0.0.0.0 Dialer0 ! ip access-list standard snmpv4 permit 123.123.123.123 ! access-list 1 permit 192.168.123.0 0.0.0.255 access-list 22 permit 234.234.234.234 log access-list 22 deny any log dialer-list 1 protocol ip permit ipv6 route ::/0 Dialer0 ! ! ! ! snmp-server community xxxx RO 22 snmp-server community secret123 RO snmpv4 snmp-server ifindex persist snmp-server location 50 TLS snmp-server contact goaway@rainsbrook.co.uk ! ! control-plane ! ! banner exec ^CC Session established to $(hostname) on line $(line)^C banner login ^CC +-------------------------------------------------------+ | This is a private system and | | is only for the use of authorized personnel. | | | +-------------------------------------------------------+ | | | If you are allowed access, you will have been told. | | If you have to ask anyone if you are authorized, | | | | -*YOU AREN'T*- | | | +-------------------------------------------------------+ ^C banner motd ^CCx^C ! line con 0 password 7 12341234abcd login line aux 0 line vty 0 4 access-class 22 in password 7 12341234abcd login transport input all ! scheduler allocate 20000 1000 ntp server 216.239.35.0 ntp server 1.1.1.1 ntp server 216.239.35.4 end 1841-isp#
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networking/cisco-1841-config-nat.1778885488.txt.gz · Last modified: by andrew
