nanog mailing list archives
Re: RFC1918 addresses to permit in for VPN?
From: Danny McPherson <danny () ambernetworks com>
Date: Fri, 29 Dec 2000 11:45:50 -0700
This is one of the benchmarks of cluelessness. The other is that the addresses don't have reverse DNS.
Perhaps they do resolve interally to BT, it's just that your resolver can't get anything useful via the normal channels: danny@sofos% dig @a.root-servers.net 16.172.in-addr.arpa ns ; <<>> DiG 8.2 <<>> @a.root-servers.net 16.172.in-addr.arpa ns ; (1 server found) ;; res options: init recurs defnam dnsrch ;; got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6 ;; flags: qr rd; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0 ;; QUERY SECTION: ;; 16.172.in-addr.arpa, type = NS, class = IN ;; ANSWER SECTION: 16.172.in-addr.arpa. 6D IN NS BLACKHOLE.ISI.EDU. 16.172.in-addr.arpa. 6D IN NS BLACKHOLE.EP.NET. ;; Total query time: 108 msec ;; FROM: sofos.tcb.net to SERVER: a.root-servers.net 198.41.0.4 ;; WHEN: Fri Dec 29 11:42:12 2000 ;; MSG SIZE sent: 37 rcvd: 98 Though I agree that using reserved address space in this manner is [usually] a bad idea, I think we [NANOG] have been through this dicussion more than a few times in this past. -danny
Current thread:
- Re: RFC1918 addresses to permit in for VPN?, (continued)
- Re: RFC1918 addresses to permit in for VPN? Randy Bush (Dec 31)
- Re: RFC1918 addresses to permit in for VPN? Andrew Brown (Dec 31)
- Re: RFC1918 addresses to permit in for VPN? John Hawkinson (Dec 31)
- Re: RFC1918 addresses to permit in for VPN? Dana Hudes (Dec 31)
- Re: RFC1918 addresses to permit in for VPN? Stephen Stuart (Dec 31)
- Re: RFC1918 addresses to permit in for VPN? Andrew Brown (Dec 31)
- Re: RFC1918 addresses to permit in for VPN? Stephen Stuart (Dec 31)
- RE: RFC1918 addresses to permit in for VPN? Jason Lewis (Dec 31)
- Re: RFC1918 addresses to permit in for VPN? Stephen Stuart (Dec 31)
- RE: RFC1918 addresses to permit in for VPN? Bill Woodcock (Dec 31)
- Re: RFC1918 addresses to permit in for VPN? Adam Rothschild (Dec 30)
- Re: RFC1918 addresses to permit in for VPN? Steve Sobol (Dec 30)