Firewall Wizards mailing list archives
Re: ICMP Packets.
From: Darren Reed <darrenr () reed wattle id au>
Date: Wed, 3 Jun 1998 22:46:15 +1000 (EST)
In some email I received from tqbf () pobox com, sie wrote: [...]
2) Is there a list of ICMP message types that are needed as opposed toones that are just used for troubleshooting ( like echo, echo-reply ) that can be blocked without problems. Not that I know of, but you should remember that for information gathering purposes, blocking ECHO REQUEST messages is a pretty futile gesture.
[...] I'd second Perry's comments and mention that you're stopping PMTU from working, for starters. Whatever is sending out IP packets should be able to get the ICMP errors which are returned for those packets. Darren
Current thread:
- ICMP Packets. Toddb (Jun 01)
- Re: ICMP Packets. Henry Hertz Hobbit (Jun 02)
- Re: ICMP Packets. Bennett Todd (Jun 02)
- Re: ICMP Packets. Perry E. Metzger (Jun 02)
- Re: ICMP Packets. tqbf (Jun 02)
- Re: ICMP Packets. Darren Reed (Jun 03)
- <Possible follow-ups>
- Re: ICMP Packets. Don Kendrick (Jun 02)
- Re: ICMP Packets. Perry E. Metzger (Jun 02)
- Re: ICMP Packets. Alec Muffett - SunLabs (Jun 02)
- Re: ICMP Packets. James R Grinter (Jun 02)
- Re: ICMP Packets. Henry Hertz Hobbit (Jun 03)
- Re: ICMP Packets. Don Kendrick (Jun 02)
- Re: ICMP Packets. Perry E. Metzger (Jun 02)
- Re: ICMP Packets. Perry E. Metzger (Jun 03)
- Re: ICMP Packets. Bennett Todd (Jun 04)
- Re: ICMP Packets. Paul D. Robertson (Jun 05)
(Thread continues...)
- Re: ICMP Packets. Henry Hertz Hobbit (Jun 02)