Hello. I configure the 2800 series firewalls for stores. I recently been told that I need to change the IOS from c2800nm-advsecurityk9-mz.124-11.T10 to c2800nm-advsecurityk9-mz.124-11.T4. Now I have deleted the IOS easily but I have been running into problems with putting the other IOS on it. I cant seem to xmodem to it so I dont know if I have it set up wrong. And I have pulled the flash card out, put it into a reader and have been able to put the new IOS on it that way but that has not always worked with these 128 cards. I know Cisco sells that but at 400 dollars each I think thats out of the question. Can I get some advice on the best way to change the IOS. Thanks.
TFTP_RETRY_COUNT: Retry count for ARP and TFTP (default=7)
TFTP_TIMEOUT: Overall timeout of operation in seconds (default=7200)
TFTP_CHECKSUM: Perform checksum test on image, 0=no, 1=yes (default=1)
Command line options:
-r: do not write flash, load to DRAM only and launch image
-u: upgrade the rommon, system will reboot once upgrade is complete
rommon 14 >
Note: As detailed in Cisco bug ID CSCdk81077 (registered customers only) , for Cisco 2600 and 1720 Series Routers running the ROM monitor command tftpdnld, the command might report a bad checksum comparison when it loads Cisco IOS software images of Cisco IOS Software Release 12.0(2.2)T or later.
Note: As a workaround to this problem, set the ROM monitor variable TFTP_CHECKSUM to 0. This is done by defining the variable TFTP_CHECKSUM=0 from the ROM monitor set command, and then proceeding with the tftpdnld procedure.
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We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...