nanog mailing list archives
Re: IOS 12.3(x) Strange service ports open on router
From: "Christopher L. Morrow" <christopher.morrow () mci com>
Date: Fri, 9 Apr 2004 21:52:40 +0000 (GMT)
On Fri, 9 Apr 2004, Iljitsch van Beijnum wrote:
On 9-apr-04, at 22:27, Pekka Savola wrote:Another pet peeve of roughly the same category: when you enable IPv6, telnet is automatically open to the world (using v6), even if you have disabled v4 telnet with an access-list.The vendor refused to believe this is a problem,Whether or not this is a problem is in the eye of the beholder, but from what I've seen, this is standard practice with any kind of packet filter. As far as I know, only hosts.allow-style tcp wrapping is agnostic about the IP version.
So, with a cisco style vty acl how does one do both v4 and v6 filterage? (not speaking as a v6 user)
Current thread:
- IOS 12.3(x) Strange service ports open on router Robert Blayzor (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Petri Helenius (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Robert Blayzor (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Steven M. Bellovin (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Pekka Savola (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Iljitsch van Beijnum (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Christopher L. Morrow (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Niels Bakker (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Christopher L. Morrow (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Niels Bakker (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Iljitsch van Beijnum (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Niels Bakker (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Robert Blayzor (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Petri Helenius (Apr 09)
- Re: IOS 12.3(x) Strange service ports open on router Yann Berthier (Apr 09)