"I would also like to save each lab config in each of the routers to make it easy to switch between configs eg. basic.ip.addressing.cfg --> config replace flash:basic.ip.addressing.
But this can only be done on the CSR."
This can be done in IOL also. Instead of using flash: or bootflash: IOL uses the unix: directory. You can store configs here and do a config replace. When I did INE advanced technologies I also had issues with IPSEC and DMVPN. I usually got this problem when changing configurations on the tunnel or crypto section. I fixed this by shutting down tunnels on HUB and all spokes and clearing ipsec SA. Please try this and see if you can get get the tunnel up.
Below is an example of how I did config replace on IOL device:
Code: Select all
R2#dir
Directory of unix:/
20972351 -rw- 1048576 Feb 2 2018 20:42:42 -05:00 nvram_00034
20972348 -rw- 0 Feb 3 2018 13:39:35 -05:00 wrapper.txt
20972353 -rw- 37045 Feb 2 2018 13:59:59 -05:00 pnp-tech-discovery-summary
20972352 -rw- 34 Feb 2 2018 13:59:58 -05:00 pnp-tech-time
20972354 -rw- 616 Feb 2 2018 14:26:47 -05:00 vlan.dat-00034
20972350 -rw- 812 Feb 3 2018 13:39:35 -05:00 NETMAP
20972347 -rw- 0 Feb 3 2018 13:39:35 -05:00 .prepared
2147479552 bytes total (2147479552 bytes free)
R2#copy run unix:/original.cfg
Destination filename [original.cfg]?
1143 bytes copied in 0.059 secs (19373 bytes/sec)
R2#config t
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#hostname CHANGED-R2
CHANGED-R2(config)#do wr
Building configuration...
Compressed configuration from 1151 bytes to 749 bytes[OK]
CHANGED-R2(config)#end
CHANGED-R2#copy run unix:/changed.cfg
Destination filename [changed.cfg]?
1151 bytes copied in 0.053 secs (21717 bytes/sec)
CHANGED-R2#config replace unix:/original.cfg
This will apply all necessary additions and deletions
to replace the current running configuration with the
contents of the specified configuration file, which is
assumed to be a complete configuration, not a partial
configuration. Enter Y if you are sure you want to proceed. ? [no]: y
Total number of passes: 1
Rollback Done
R2#
*Feb 3 18:42:32.520: Rollback:Acquired Configuration lock.
R2#