Full Disclosure mailing list archives
Re: My ISP is routing traffic to private addresses...
From: Justin Elze <formulals1 () gmail com>
Date: Sat, 18 May 2013 08:55:08 -0400
The idea behind private IP space is it doesn't leave the ISPs AS via BGP to the rest of the internet. On the topic of routing if you're router doesn't have a directly connected route or specific route for 172.x.x.x/whatever it will automatically send information to the default 0.0.0.0 route. There could be a number of cases where you had private IP space in front of a router/wap/whatever. ISPs use prefix lists on their boarder BGP routers to explicitly allow which ranges get redistributed to the rest of the internet. On Sat, May 18, 2013 at 7:41 AM, Kirils Solovjovs < kirils.solovjovs () kirils com> wrote:
On 2013.05.18. 10:34, Alexander Georgiev wrote:It is sad, that many people don't understand network basics. BTW, your internet router should not forward rfc1918 addresses to the outside, shouldn't he?It should. Private address ranges are not marked "magic cows" inside a classical router's firmware. Still the problem OP is experiencing is strange, since if there is a local subnet, it should have a priority local route. Why isn't it there? Btw, I'd be cautious to state that ISP filter incoming packets with dst=private. The limitation here would be that private ranges will usually be router upstream, so you can't really get past and internet exchange. -- Kirils Solovjovs ______________________________**_________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-**disclosure-charter.html<http://lists.grok.org.uk/full-disclosure-charter.html> Hosted and sponsored by Secunia - http://secunia.com/
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Current thread:
- Re: My ISP is routing traffic to private addresses..., (continued)
- Re: My ISP is routing traffic to private addresses... sec (May 17)
- Re: My ISP is routing traffic to private addresses... Justin Elze (May 17)
- Re: My ISP is routing traffic to private addresses... Gary Baribault (May 17)
- Re: My ISP is routing traffic to private addresses... sec (May 17)
- Re: My ISP is routing traffic to private addresses... Gary Baribault (May 17)
- Re: My ISP is routing traffic to private addresses... Carl "Thomas" Guething (May 17)
- Re: My ISP is routing traffic to private addresses... Gary Baribault (May 17)
- Re: My ISP is routing traffic to private addresses... Alexander Georgiev (May 18)
- Re: My ISP is routing traffic to private addresses... Kirils Solovjovs (May 18)
- Message not available
- Re: My ISP is routing traffic to private addresses... Dan Dart (May 18)
- Re: My ISP is routing traffic to private addresses... Justin Elze (May 18)
- Re: My ISP is routing traffic to private addresses... Alexander Georgiev (May 20)
- Re: My ISP is routing traffic to private addresses... Patrick Webster (May 20)
- Re: My ISP is routing traffic to private addresses... sec (May 17)
- Re: My ISP is routing traffic to private addresses... Gary Baribault (May 17)