I thought 10.x.x.x IPs weren't routable!
I thought 10.x.x.x IPs weren't routable!
My firewall picked up incoming packets from a 10.x.x.x IP.
I trace routed it out of my subnet, past my ISP.
How is this possible?
I thought 10. IPs are private and cannot be routed.
My firewall picked up incoming packets from a 10.x.x.x IP.
I trace routed it out of my subnet, past my ISP.
How is this possible?
I thought 10. IPs are private and cannot be routed.
Comments
I thought that all of the 10. IP's behind the router should appear as one single public IP.
There must be some tools I can use to find
out where the packet originated from.
Perhaps a sniffer?
-- I sense that this is now beyond the realm of N+. Sorry.
Is it possible for the hop after my router/default gateway to be in the 10.x.x.x range?
A trace route from my machine shows one.
The next hop is 10.162.40.1.
Don't DSL routers function like normal routers?
I shouldn't even be seeing that.
I thought that these IPs weren't routable though.
I am behind a DSL "router."
So you IP will indeed be routed around your isps network. Private address are routable everywhere execpt the internet backbone.
So there could be 20 routes all connected to each other belonging to your isp but only a handfull would actually connect on to the internet.
Run a traceroute (tracert) to a know ip or name such as techexams.net.
for more info on private ips http://www.faqs.org/rfcs/rfc1918.html
I guess I should clarify what I mean by "routable."
I know the packets are routed, but once a node passes a router, it should no longer be a private IP. It should be translated at that point.
Only once it actully goes onto the internet backbone (BGPv4) I use 10.0 for my home lab which has 6 routers. They are only known as private because it was agreed to allow people to use these at home etc. Its only once it goes through NAT that it will become a public address. Hope this makes sense. [/code]
I always looked at routers as devices used to separate private networks from the public internet.
In retrospect, I remember that they separate subnets, which explains why a 10. IP can exist beyond my router.
Case and point: Private IPs like 10.x.x.x can exist until they get to the router that touches the internet.
I'm using NAT to access the internet at this moment. My computer is on a private IP address 192.168.30.0.
Your ISP is probably overloading hundereds of users (of which you're one) onto that single public IP address.
Magnanimous as the ocean, persistent as time.