Hi Adam,
TFTP is executed under the inetd process. TFTPd is disabled by default on higher releases (6.x+) which the 6720 does not support. IPfilter is not needed to block this.
Please do the following to disable tftpd. A reload will be needed to take effect.
The below will do the following:
- take back up of inetd.conf
- comment out tftpd in inetd.conf and put in new file via sed
- overwrite inetd.conf with update file
- copy inetd.conf to 2nd partition in case of partition swap in the future
- reload switch
code:sw0# unhide foscmd
Password: ******** (fibranne)
sw0# fos bash | no
sw0:root> netstat -anp | grep :69
udp 0 0 0.0.0.0:69 0.0.0.0:* 1295/inetd
sw0:root> cat /etc/inetd.conf | grep tftpd
tftp dgram udp wait nobody /usr/sbin/in.tftpd in.tftpd /tftpboot
bash-2.04# cp /etc/inetd.conf /etc/inetd.conf.bak
bash-2.04# cp /mnt/etc/inetd.conf /mnt/etc/inetd.conf.bak
bash-2.04# sed -e 's/^tftp/#tftp/' /etc/inetd.conf > /etc/inetd.conf.new
bash-2.04# cp /etc/inetd.conf.new /etc/inetd.conf
bash-2.04# grep tftp /etc/inetd.conf
#tftp dgram udp wait nobody /usr/sbin/in.tftpd in.tftpd /tftpboot
bash-2.04# cp /etc/inetd.conf /mnt/etc/inetd.conf
bash-2.04# exit
exit
sw0# reload system
### After switch boots up ###
code:sw0# unhide foscmd
Password: ******** (fibranne)
sw0# fos bash | no
bash-2.04# netstat -anp | grep :69
bash-2.04#
