On using loopbacks for tftp, syslog, NTP

bitworks

Hello all,

I've been reading an older ebook called Cisco ISP Essentials and the best practice approach is to use loopbacks for all of these services.

But I can't get it to work.

By themselves all do but at soon as configured to use loopback I'll see the router trying to connect but it bombs out. I've rolled back so that only ftp is now on the loopback... what am I missing?

Hardware: 2621
IOS: 12.2(11)T

Relevant bits of Current config

version 12.2
service nagle
service timestamps debug uptime
service timestamps log datetime localtime show-timezone
!
hostname 2621AS
!
!
clock timezone EST -5
ip subnet-zero
!
!
ip ftp source-interface Loopback0
!

interface Loopback0
 ip address 10.250.1.1 255.255.255.0
!
interface FastEthernet0/0
 ip address 192.168.1.35 255.255.255.0
 duplex auto
 speed auto
!
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.1.1
no ip http server
ip pim bidir-enable
!
!
logging source-interface FastEthernet0/0
logging 192.168.1.29
!
exception protocol ftp
exception **** 192.168.1.29
ntp clock-period 17180650
ntp server 206.246.118.250 source FastEthernet0/0 prefer
!
end

Thanks for any pointers!

dtlokee

You need to have a route back to the loopback interface in the routing table. Make sure you can ping the loopback from the computer you are using as the server.