Cisco 2921 for home use

[benjamingrimm87]

I'm having problems setting up my home network using Cisco2921 for the first time. It has the basic licenses only. Below is the running config followed by my adapter settings. Any assistance would be greatly appreciated. Thank you.

Current configuration : 1450 bytes
!
version 15.7
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
!
!
!
!
!
!
!
!
!
ip dhcp excluded-address 192.168.1.1
!
ip dhcp pool LAN
network 192.168.1.0 255.255.255.0
default-router 192.168.1.1
dns-server 8.8.8.8
!
!
!
ip cef
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
license udi pid CISCO2921/K9 sn FJC1937A1U1
!
!
!
redundancy
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
interface Embedded-Service-Engine0/0
no ip address
shutdown
!
interface GigabitEthernet0/0
description To ISP
ip address dhcp
ip nat outside
ip virtual-reassembly in
duplex auto
speed auto
!
interface GigabitEthernet0/1
description To Me
ip address 192.168.1.1 255.255.255.0
ip nat inside
no ip virtual-reassembly in
duplex auto
speed auto
!
interface GigabitEthernet0/2
no ip address
shutdown
duplex auto
speed auto
!
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 GigabitEthernet0/0 dhcp
!
!
!
!
control-plane
!
!
vstack
!
line con 0
line aux 0
line 2
no activation-character
no exec
transport preferred none
transport output pad telnet rlogin lapb-ta mop udptn v120 ssh
stopbits 1
line vty 0 4
login
transport input none
--More-- !
scheduler allocate 20000 1000
ntp server 34.202.215.187
!
end

Ethernet adapter Ethernet:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) Ethernet Controller (3) I225-V
Physical Address. . . . . . . . . : FC-34-97-A0-CD-EB
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::8c62:eac9:e59c:426f%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.119(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Lease Obtained. . . . . . . . . . : Wednesday, April 17, 2024 6:09:11 AM
Lease Expires . . . . . . . . . . : Thursday, April 18, 2024 6:09:08 AM
Default Gateway . . . . . . . . . : 192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DHCPv6 IAID . . . . . . . . . . . : 217855127
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-25-9E-17-A4-FC-34-97-A0-CD-EB
DNS Servers . . . . . . . . . . . : 192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

[liviu.gheorghe]

Hello @benjamingrimm87 ,

you access-list 1 is missing from the configuration. It should be something like:

access-list 1 permit 192.168.1.0 0.0.0.255

That should take care of the NAT.

[benjamingrimm87]

My g0/0 still is not getting an IP address assigned to it, no connectivity.

[liviu.gheorghe]

Have you talked to your ISP? Is this the way your Internet connectivity is supplied by the ISP? The reason I ask is maybe your ISP provides the Internet connection via PPPoE which is a lot different from direct IP connectivity with DHCP IP address assignment.

[benjamingrimm87]

I thought that was only for DSL type connections. This apartment uses Spectrum as the ISP. Thanks for the help

[liviu.gheorghe]

No, it's not only for DSL connections. Many ISP offer physical ethernet connectivity to their customers and the configuration is done using PPPoE. Has your ISP supplied a username/password for the internet service? This could be an indication for configuring PPPoE.

[benjamingrimm87]

I'm going to gather the credentials and try setting up the new connection. Ty

[Georg Pauwen]

Hello,

I would shut/no shut the GigabitEthernet0/0 interface and run 'debug ip dhcp server events', that might give you an indication of what is going. Shut GigabitEthernet0/1, since that is only local DHCP related traffic.

[Richard Burts]

I agree with @liviu.gheorghe that the missing acl 1 will be a major issue. But that does not come into play until the issue about connecting the router to the ISP is resolved.

Can you ask the apartment management if they have any guidelines for connecting to the Spectrum Internet? If you connect your PC directly to the Spectrum does it receive an IP address?

[benjamingrimm87]

The apartment I live in is sharing a fiber connection with other businesses that the building is attached too. The property manager didn't know and wasn't able to help. Looks like its going to the back burner. I will just practice setting a virtual router up on some VMs or something. Thanks for the help anyways.

[Richard Burts]

Thanks for the update. Sorry you have not made much progress. Hope your continuing practice works well.