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mbruno
join:2003-07-03
Salisbury, MD

mbruno to DocLarge

Member

to DocLarge

Re: [HELP] help with new router config Cisco 1921

said by DocLarge:

No question to made. More like a statement. I'm skimming through a document pertaining to your router...

EDIT

Okay, set up a management vlan on your 1921 similar to what you had on your 871:

int vlan 1
ip address 10.10.10.1 255.255.255.0
no shut
I don't recall it leting me do that.
DocLarge
Premium Member
join:2004-09-08

DocLarge

Premium Member

Try assigning the ip address to your gi0/1 interface:

int gi0/0
ip address 10.10.10.1 255.255.255.0
no shut
speed 100
duplex full
mbruno
join:2003-07-03
Salisbury, MD

mbruno

Member

said by mbruno:

said by DocLarge:

No question to made. More like a statement. I'm skimming through a document pertaining to your router...

EDIT

Okay, set up a management vlan on your 1921 similar to what you had on your 871:

int vlan 1
ip address 10.10.10.1 255.255.255.0
no shut
I don't recall it leting me do that.
Give me a couple of seconds while I try this. I mean more like 4 to 5 min so the cable modem will forget the mac address. k
DocLarge
Premium Member
join:2004-09-08

DocLarge

Premium Member

Sure thing...
mbruno
join:2003-07-03
Salisbury, MD

mbruno

Member

no same thing
here is my new config:

Current configuration : 1617 bytes
!
! Last configuration change at 22:14:16 UTC Sun Sep 5 2010
!
version 15.0
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname orion1
!
boot-start-marker
boot-end-marker
!
logging buffered 51200 warnings
no logging console
enable secret 5 ******
!
no aaa new-model
!
no ipv6 cef
no ip source-route
ip cef
!
!
ip dhcp excluded-address 10.10.10.1
ip dhcp excluded-address 10.10.10.200 10.10.10.220
!
ip dhcp pool sdm-pool
import all
network 10.10.10.0 255.255.255.248
default-router 10.10.10.1
lease 0 2
!
!
login on-failure log
login on-success log
multilink bundle-name authenticated
!
!
!
license udi pid CISCO1921/K9 sn *******
!
!
username *******
!
!
!
!
!
!
interface GigabitEthernet0/0
description (outside interface to Internet)
bandwidth 6000
ip address dhcp
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
no cdp enable
!
interface GigabitEthernet0/1
ip address 10.10.10.1 255.255.255.0
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
!
access-list 1 permit any
!
no cdp advertise-v2
no cdp run

!
snmp-server community ******
snmp-server community *******
!
control-plane
!
!
line con 0
password 7 ********
logging synchronous
login
transport preferred ssh
transport output all
line aux 0
line vty 0 4
password 7 *****
login
transport preferred ssh
transport input ssh
transport output ssh
!
scheduler allocate 20000 1000
end

orion1#
mbruno

mbruno

Member

so it seems now that I can ping my internal network but I still can not route to the outside (a.k.a Ping the internet from a pc) It looks like I am getting closer but something is still missing here.
DocLarge
Premium Member
join:2004-09-08

2 edits

DocLarge

Premium Member

Closer is good...

I'm taking a look at my config I was running before I switched my 871w over to a static ip to see what's still missing...

By the way, do you know the ip addresses of your ISPs DNS servers? If you're not going to use the command I mentioned before (ip dhcp client update dns), it might not hurt using this command:

ip name-server [ISP DNS Srvr IP Address Here]

It almost is starting to sound like there's an issue in your ip routing table (hmmm)
mbruno
join:2003-07-03
Salisbury, MD

mbruno

Member

yea it looks that way. I usually hard code the DNS servers on my machine. Don't ask me why i do that but it seems to work for me. The one thing I did notice is in the Sh ip Route table.

Look below :
new 921 route table

orion1#sh ip route
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, + - replicated route

Gateway of last resort is 71.200.56.1 to network 0.0.0.0

S* 0.0.0.0/0 [254/0] via 71.200.56.1
68.0.0.0/32 is subnetted, 1 subnets
S 68.87.64.10 [254/0] via 71.200.56.1, GigabitEthernet0/0
71.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
C 71.200.56.0/22 is directly connected, GigabitEthernet0/0
L 71.200.57.11/32 is directly connected, GigabitEthernet0/0

old route table:
Cisco 871

orion#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route

Gateway of last resort is 71.200.56.1 to network 0.0.0.0

68.0.0.0/32 is subnetted, 1 subnets
S 68.87.64.10 [254/0] via 71.200.56.1, FastEthernet4
71.0.0.0/22 is subnetted, 1 subnets
C 71.200.56.0 is directly connected, FastEthernet4
S* 0.0.0.0/0 [254/0] via 71.200.56.1

See where 71.0.0.0/8 has two 2 subnets (cisco 1921)

and 71.0.0.0/22 has 1 subnet (Cisco 871)

WHY?
DocLarge
Premium Member
join:2004-09-08

1 edit

DocLarge

Premium Member

I don't think I've ever seen that. For some reason, you're gi0/0 interface is finding another device (possibly latent entry from switching between your 871 and 1921??).

Try doing a "clear ip route *" and see if it drops off...
mbruno
join:2003-07-03
Salisbury, MD

mbruno

Member

said by DocLarge:

I don't think I've ever seen that. For some reason, you're gi0/0 interface is finding another device (possibly latent entry from switching between your 871 and 1921??).

Try doing a "clear ip route *" from and see if it drops off...
I can try but it will take at least 5 to 10 mins to switch over. If you want to stay here I will try it now.
DocLarge
Premium Member
join:2004-09-08

1 edit

DocLarge

Premium Member

No prob... I've got access from my I-phone...

EDIT

What I sometimes do in this instance is stick a consumer router on line (i.e, Linksys WRV200, Netgear FVS114), and set it up for DHCP. Then from there, I take a look at it's routing table entries for a comparison.

Oh, I forgot something; when you're back up, do a "sh ip int brief" and see if your gi0/0 is up and running...
mbruno
join:2003-07-03
Salisbury, MD

1 edit

mbruno

Member

no luck

I have cleared the ip route tables and I always do a sh ip int brief.