1941W (or any ISR G2 Router) with 4esg ethernet configuration example
I have a very simple setup I am trying to get with my 1941W.
Gig0/0 is my WAN port tied to a Comcast Business connection - No issues
Gig0/1 is my internal LAN connection, private IP, dhcp - No issues
Gig0/1 is connected to a 24 port PoE switch via ethernet cable.
The switch connects to a Linksys E4200V2.
What I want to do is get rid of my big PoE switch (which is powering one phone) and my Linksys E4200v2 and use just the 1941W.
OK, I guess I am old school and like it when a router is a router and a switch is a switch.....
Unfortunately there is, from what I can tell, a complete lack of configuration examples. I found many snippets and one entire configuration complete with ppt slides that does not actually work with the 1941W I have (the example shows Interface Gigabit0, while my 1941W has them listed as interface Gigabit0/0)
And I HATE asking for help. I would much rather find a few working examples, read about any command I don't know about, and muddle through getting something to work: It may not be secure or the 'best' way to do it, but they did work.
Comcast Cable Gateway--->Static IP<--- Gig0/0 1941W----Gig0/1, Gig0/0/0 to Gig0/0/3--dhcp pool1----------->>>> to wired devices.
1941W---wlan-gig0/0----accesspoint-------------------------------->>>> to wireless devices.
I would prefer to have my wireless and wired links share one DHCP pool, but they do not have to. At this point I would take anything I can get. I do have a working AP configuration from work that connects the AP to devices using WAP, allocating DHCP from a second DHCP pool but can't get the wireless to route outside the box.
I thought it was as simple as assigning a VLAN with a DHCP pool to the 4esg ethernet ports, but that does not quite work. A computer plugged directly into 4esg port gig0/0/0 does correctly obtain a DHCP IP address, but it will not ping anywhere outside the local network. In this case the computer can ping 172.20.40.1, the gig0/1 interface or any other IP on that network, but not anything outside. Interesting enough, if I do an extended ping from 172.20.40.1 I CAN ping outside locations from the inside nat interface of the router.
Do I have to do routing table profiles or something? I am very appreciatve of any help and will gladly give you login to my router....
Current configuration : 2595 bytes ! ! Last configuration change at 00:52:02 UTC Mon Feb 27 2012 ! NVRAM config last updated at 00:52:18 UTC Mon Feb 27 2012 ! NVRAM config last updated at 00:52:18 UTC Mon Feb 27 2012 version 15.2 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname Router ! boot-start-marker boot-end-marker ! ! logging buffered 9999999 no logging console enable secret 5 password gone for security enable password password gone for security ! no aaa new-model service-module wlan-ap 0 bootimage autonomous ! no ipv6 cef ! ! ! no ip dhcp use vrf connected ip dhcp excluded-address 172.20.40.1 172.20.40.100 ! ip dhcp pool pool1 network 172.20.40.0 255.255.255.0 default-router 172.20.40.1 option 150 ip 126.96.36.199 dns-server 188.8.131.52 ! ! ip cef multilink bundle-name authenticated ! crypto pki token default removal timeout 0 ! ! license udi pid CISCO1941W-A/K9 sn FTX15240336 hw-module ism 0 ! ! ! ! ! ! ! ! ! interface Embedded-Service-Engine0/0 no ip address
! interface GigabitEthernet0/0 description $ETH-LAN$$ETH-SW-LAUNCH$$INTF-INFO-GE 0/ex0$ ip address 184.108.40.206 255.255.255.248 ip nat outside ip virtual-reassembly in duplex auto speed auto ! interface wlan-ap0 description Service module interface to manage the embedded AP no ip address arp timeout 0 no mop enabled no mop sysid ! interface GigabitEthernet0/1 ip address 172.20.40.1 255.255.255.0 ip nat inside ip virtual-reassembly in duplex auto speed auto ! interface Wlan-GigabitEthernet0/0 description Internal switch interface connecting to the embedded AP no ip address ! interface GigabitEthernet0/0/0 no ip address ! interface GigabitEthernet0/0/1 no ip address ! interface GigabitEthernet0/0/2 no ip address ! interface GigabitEthernet0/0/3 no ip address ! interface Vlan1
ip address pool pool1 ! ip default-gateway 220.127.116.11 ip forward-protocol nd ! no ip http server no ip http secure-server ! ip nat inside source list 1 interface GigabitEthernet0/0 overload ip route 0.0.0.0 0.0.0.0 18.104.22.168 ! access-list 1 permit 172.20.40.0 0.0.0.255 ! ! ! control-plane ! ! ! line con 0 line aux 0 line 2 no activation-character no exec transport preferred none transport input all transport output pad telnet rlogin lapb-ta mop udptn v120 ssh stopbits 1 line 67 no activation-character no exec transport preferred none transport input all transport output pad telnet rlogin lapb-ta mop udptn v120 ssh line vty 0 4 password password gone for security login transport input all transport output all ! scheduler allocate 20000 1000 ! end
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