From my notes...
Open a RAW connection to the RTC (not the E2T card) on port 2007
do a 'c' command, then it is similar to RTC boot change, and make sure things are set as follows:
boot device = motfcc (Boot device is Network)
processor number = 0 (Not used)
host name = bootHost (Do not change)
file name = /sysro/E2T8260 (Boot file location and file name)
inet on ethernet (e) = xx.xx.xx.xx:ffffff00 (IP address and subnet mask (hex) for Controller E2T, for example, 134.199.63.11:ffffff00)
inet on backplane (b) = [blank]
host inet (h) = xx.xx.xx.xx (IP address of Controller RTC)
gateway inet (g) = xx.xx.xx.xx (IP address of the end user’s default gateway for the 3300 ICP, must be outside the DHCP range)
user (u) = ftp (not used)
ftp password (ftp) = @ (not used)
flags (f) = 0x0 (use static IP address above)
0x40 (use DHCP static reservation)
target name (n) = [blank]
startup script (s) = [blank]
other (o) = [blank] (If something is in this field, do not change it)
Press @ <Return> at prompt to reboot E2T card with new parameters
EDIT: I see after I posted this, there is also an alternate method to access the E2T, good to know.