Autoinstall on the LAN with network-confg
I'm trying the auto-install feature but running into some problems. I have created an network-confg file with ip to hostname mapping as well as host-specific configuration files. These files are no my tftp server (my staging router). The tftp server/staging server is directly connected to the router I'm attempting to configure using autoinstall. The tftp server has been configured with the following commands:
tftp-server flash:R2-confg
tftp-server flash:R3-confg
tftp-server flash:network-confg
I have created dhcp host pools on the router and I can confirm that the routers get assigned an ip address. The problem is that only once(erased startup-config and reloaded routers several times) did a router manage to get and configure itself from the network-confg file. I could determine this by reading the console output as the router boots. Even on this occassion the autoinstall failed. Most of the time I get the message there was a timeout whilst attempting to get the network-confg file.
If I configure my dhcp to assign the tftp server and/or bootfile the autoinstall succeeds. I can't figure out why downloading the network-confg file times out.
I have also tried RARP instead of DHCP. The router gets an ip address but fails at the same stage of downloading and reading the network-confg file. I'm using real 2811 routers running c2800nm-adventerprisek9-mz.124-24.T3.bin. What could be wrong? Is anybody facing the same problem.
Comments
Hi enyatoti,
What kind of interfaces are you using, dhcp is not supported on serial interfaces in certain IOS releases. Try using fastethernet interfaces.
Do you get any packet loss when pinging ?
How large is the image your are trying to download. TFTP max image size is 16Mb.
I've never used autoinstall actually, so i can only guess.
Maybe something useful in here:
http://www.cisco.com/en/US/docs/ios/12_1t/12_1t5/feature/guide/dt_dhcpa.html#wp1015337
This is on LAN interfaces. The files in question are very small. Its not IOS image files.