Hi,
It's your ISPs responsibility to advertise your prefix to its upstream
peers. I don't see your prefix on the Internet so your ISP needs to
verify that they are advertising your prefix and that they have added it
in to their prefix lists etc. So basically, if they are receiving it
from you, then it's on them to make your prefix available to the rest of
the world. You should contact them and let them know that your prefix
is unavailable beyond their AS.
Thank you,
Robyn
Poh Yong Hwang wrote:
Hi,
Sorry for the misunderstanding. The ip 11.11.11.12
http://11.11.11.12 is just an example that I stated. My actual ip
address is 117.120.0.0/21 http://117.120.0.0/21. I have check with
my upstream regarding this and they said they have recieve 1 prefix
from my router:
sgw-rs1# sh ip bgp nei 202.79.197.25 http://202.79.197.25
received-routes BGP table version is 0, local router ID is
202.79.197.126 http://202.79.197.126 Status codes: s suppressed, d
damped, h history, * valid, best, i - internal Origin codes: i -
IGP, e - EGP, ? - incomplete
Network Next HopMetric LocPrf Weight Path
* 117.120.0.0/21 http://117.120.0.0/21 202.79.197.25
http://202.79.197.250 0 7595 ?
Total number of prefixes 1
I see that under the Path, it stated as ? which is incomplete. Could
that be the issue for not able to find the path back to my router?
Thanks
On Jan 7, 2008 11:07 PM, Robyn Orosz [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
Hi,
If 11.11.11.12/21 http://11.11.11.12/21 is your own IP space
(which I doubt because it's
allocated to the DoD) ;-) and your service provider is receiving
it via
BGP and propagating it out to the Internet, then you should be
able to
reach it from the outside. So I guess what I'm not clear on is,
are you
literally setting eth1 to 11.11.11.12 http://11.11.11.12? Or,
is this number supposed to
represent your actual IP space?
If you have your actual owned IP space assigned to eth1 and you are
unable to reach it externally, then make sure that it is still being
exported to your BGP peer and that they are advertising it outside of
their AS to the Internet. Try performing an external traceroute
to your
eth1 IP from somewhere like traceroute.org http://traceroute.org
or some other external
location. You can also access public route servers on
traceroute.org http://traceroute.org
and run a 'show ip bgp your-ip-address to see if your prefix has
been
advertised out to the Internet.
Thank you,
Robyn
Poh Yong Hwang wrote:
Hi,
I tried to add a ip address 11.11.11.12 http://11.11.11.12
http://11.11.11.12 http://11.11.11.12 with
prefix length of 21 to eth1. But i still cannot remote access or
ping
to this ip address from outside. I hope to able to access the
web gui
of Vyatta remotely using the eth1 ip address. Also this eth1
will be
link to a switch and to the rest of the servers, so am I right
to set
all the servers default gateway to be 11.11.11.12
http://11.11.11.12 http://11.11.11.12
which is the ip address of the eth1?
thanks for all your patience
On Jan 4, 2008 10:25 PM, Robyn Orosz [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote:
Hi,
I'm glad to hear you have it working now.
Since you are exporting your aggregate (/21) via a static
route to
your
loopback interface, you don't have to assign the entire /21
to eth1.
You can segment it in whatever way you choose as it will still
always be
exported as a /21 based on your existing policy. Basically, you
can set
whatever IP and prefix length you want on your eth1 as long
as it is a
valid part of your /21 aggregate prefix.
Thank you,
Robyn
Poh Yong Hwang wrote:
Hi all,
Sorry for getting back so late as I am tied up with some
other
stuffs.. Thanks for all the advice and my upstream managed to
see my
prefix. Seems that changing the next hop to my eth0 public ip
address
did the trick.
Now as my eth0 is connected to my upstream, what IP
address should I
set on my eth1? It will be connected to a layer 3 switch (core
switch)
which all our servers will be connected to that switch. I
have a /21
range of ip addresses, so should I just use the first ip
to set on
eth1? What prefix-length should I set on that as well?
Please advise.
