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Router 2611 looses config at reboot

jhayes
Level 1
Level 1

Also on another 2611 router i make changes to the start up config, and they are saved. but when i look at the running config, there is this one line in my access list that won't get removed. its not in my start up config only in my running config. i tried running, copy start run, but the line doesn't go away. any ideas? i tried a reload and that didn't help.

thanks,

4 Replies 4

rjackson
Level 5
Level 5

The boot problem sounds like the config register is se to "ignore nvram config at startup". sh ver to see what the config register is set at. I'd have to look up which bit ignores the config but it should be x2102. If not go to config mode and set it with config-register x2102. Save and reload. If you saved teh config while in this state your original config will be gone. If not it should be there.

On the other issue show us the access-list.

i tried it and you were right, it was wrong but after the change it only boots into rommon > mode. can't do anything.

other router:

here is my running-config

access-list 150 permit ip host 172.31.6.120 host 192.168.4.2

access-list 150 permit ip host 192.168.4.2 host 172.31.6.120

access-list 150 permit tcp host 172.31.6.120 host 192.168.4.2 eq ftp

access-list 150 permit tcp host 192.168.4.2 host 172.31.6.120 eq ftp

access-list 150 permit ip 192.168.6.0 0.0.0.255 192.168.4.0 0.0.0.255

access-list 150 permit ip 192.168.6.0 0.0.0.255 192.168.5.0 0.0.0.255

access-list 150 permit ip 192.168.4.0 0.0.0.255 192.168.6.0 0.0.0.255

here is my startup config,

access-list 150 permit tcp host 172.31.6.120 host 192.168.4.2 eq 21

access-list 150 permit tcp host 192.168.4.2 host 172.31.6.120 eq 21

access-list 150 permit ip 192.168.6.0 0.0.0.255 192.168.4.0 0.0.0.255

access-list 150 permit ip 192.168.6.0 0.0.0.255 192.168.5.0 0.0.0.255

access-list 150 permit ip 192.168.4.0 0.0.0.255 192.168.6.0 0.0.0.255

i want to delete the first two lines from running-config, but they won't go away, i want it to be excatly like startup config.

To change your access-list

no access-list 150

access-list 150 permit tcp host 172.31.6.120 host 192.168.4.2 eq 21

access-list 150 permit tcp host 192.168.4.2 host 172.31.6.120 eq 21

access-list 150 permit ip 192.168.6.0 0.0.0.255 192.168.4.0 0.0.0.255

access-list 150 permit ip 192.168.6.0 0.0.0.255 192.168.5.0 0.0.0.255

access-list 150 permit ip 192.168.4.0 0.0.0.255 192.168.6.0 0.0.0.255

That will change the running config.

Then just type "write mem" and that should write it to the startup-config

When you look at the register, what was the setting before you changed it to

0x2102

Make sure you use the 0 before the x in the register command, I believe that is pretty important.

HTH

If your stuck in rommon then type in configreg (something like that, the ? will show you) It starts an interactive process that asks what settings you want and changes them bit by bit. Not having the 0 int front of the x2102 might have messed it up; sorry. My routers wont take it without the leading 0.

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