cisco 1721

[barryvp]

hi
i have configured my 1721 router as follows.
the info from the isp is External Interfaces:

WAN Interface: 207.250.206.142
Subnet mask: 255.255.255.252
This will be the interface that directly connects to the TWTC circuit

Default Route for Router: 207.250.206.141
This will be the path that all of your internet traffic takes to get out to the internet.

Internal Interfaces: We will migrate this /25 over on the due date when the upgrade occurs from IBL Internet to T1 Internet

Assigned LAN Netblock: 66.193.86.0/25
Subnet Mask 255.255.255.128
This will be the IP that is used as a default route or gateway for your LAN.

LAN Ethernet usable IP's: 66.193.86.1 to 66.193.86.126
You can use this on your LAN (PC, Workstation, Firewall, etc)


cisco configuration
Router>
Router>
Router>en
Password:
Router#show run
Building configuration...

Current configuration : 615 bytes
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
enable secret 5 $1$BpxF$pOJo7NC3vImwSqmk.56ir/
!
ip subnet-zero
!
!
!
!
!
!
!
interface FastEthernet0
ip address 66.193.86.1 255.255.255.128
speed auto
!
interface Serial0
ip address 207.250.206.142 255.255.255.252
encapsulation ppp
shutdown
service-module t1 clock source internal
service-module t1 timeslots 1-24
!
ip classless
ip route 0.0.0.0 0.0.0.0 207.250.206.141
no ip http server
!
!
line con 0
line aux 0
line vty 0 4
login
!
no scheduler allocate
!
end

i am not sure if this is correct and what do i do about the static lan address block
thanks for any advice

 

[burtsbees]

int s0
no shut

Burt

 

[jeter]

If I were you I would install a firewall behind the router and setup security on the router it self. Not wise to post your ip's on the net.

Anyway what do you plan on doing with all of your public ip addresses?

You can also setup NAT (private to public) so your only showing your WAN address or a pool of your public ip's.

What type of equipment is on the far end. I see you have
encapsulation ppp. HDLC default will work cisco to cisco connection.






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