From: Geert Nijs (Geert.Nijs@simac.be)
Date: Mon Jan 07 2008 - 07:54:37 ARST
Hi group,
Does TFTP uses other ports like UDP 69 ?
ie maybe also dynamically assigned data transfer ports like FTP ?
In between a switch and a Ciscoworks/TFTP server i am seeing hits on random UDP ports, and i suspect this has something to do
with the automatic config download towards the Ciscoworks server:
Dec 20 14:28:07.101 CET: %SEC-6-IPACCESSLOGP: list 100 denied udp 193.74.xxx.4(38052) -> 10.63.xxx.2(49872), 5 packets
Dec 20 14:28:07.101 CET: %SEC-6-IPACCESSLOGP: list 100 denied udp 193.74.xxx.4(37992) -> 10.63.xxx.2(49872), 9 packets
Dec 20 14:28:07.101 CET: %SEC-6-IPACCESSLOGP: list 100 denied udp 193.74.xxx.4(37990) -> 10.63.xxx.2(49516), 9 packets
Dec 20 14:28:07.101 CET: %SEC-6-IPACCESSLOGP: list 100 denied udp 193.74.xxx.4(38028) -> 10.63.xxx.2(49872), 5 packets
Dec 20 14:28:07.101 CET: %SEC-6-IPACCESSLOGP: list 100 denied udp 193.74.xxx.4(38058) -> 10.63.xxx.2(49516), 9 packets
Is this true ?
Is so, is there a command to disable this behaviour and to force TFTP to always use port UDP 69 only ?
regards,
Geert
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