Firewall Wizards mailing list archives

Re: how to block ICMP tunneling?

From: Darren Reed <darrenr () reed wattle id au>
Date: Sat, 17 Jul 1999 22:36:55 +1000 (EST)

In some email I received from Razvan Peteanu, sie wrote:


BO2K has the ability to use ICMP tunneling for its traffic so I'm interested
in what types of ICMP messages should be blocked to prevent this traffic.


Depends on how safe you want to be.

Maybe you should just filter them all out as an unacceptable risk ?

Darren

Current thread:

how to block ICMP tunneling? Razvan Peteanu (Jul 16)
- Re: how to block ICMP tunneling? Darren Reed (Jul 18)
  - Re: how to block ICMP tunneling? Sebastian Krahmer (Jul 19)
- Re: how to block ICMP tunneling? Ted Doty (Jul 18)
- Re: how to block ICMP tunneling? Adam Shostack (Jul 19)
  - BO2k : was (Re: how to block ICMP tunneling?) Jason Brvenik (Jul 20)
- <Possible follow-ups>
- RE: how to block ICMP tunneling? Jason Diesel (Jul 19)
  - RE: how to block ICMP tunneling? Kevin Steves (Jul 26)
- RE: how to block ICMP tunneling? Kyle Starkey (Jul 19)
  - Re: how to block ICMP tunneling? Joseph S D Yao (Jul 20)
  - Re: how to block ICMP tunneling? Chris Brenton (Jul 20)
    - Re: how to block ICMP tunneling? carson (Jul 21)

(Thread continues...)