Ljubomir Ljubojevic wrote:
I take a look at Billion manual. It seams that you have to use it's
firewall to add an allow rule for protocol icmp? and source IP 0.0.0.0.
Destination might be also 0.0.0.0, haven't had the time to study it.
This should allow pings from outside.
Thanks very much.
Timothy Murphy wrote:
Ljubomir Ljubojevic wrote:
(1) I can open port 22 on the Billion, allowing me to ssh in from
outside. But for some reason I cannot ping the same address from
outside.
This is due to modem refuses to answer to pings. You might have option
to allow it in modem
Timothy Murphy wrote:
Further to my question,
how can I determine if it is the Billion 5200S modem/router
that is preventing pings, or if it is the CentOS-6 MicroServer
attached to the modem/router?
I don't see any reference to ICMP on the modem web-page.
On the other hand the CentOS
On 20.7.2011 12:51, Timothy Murphy wrote:
Further to my question,
how can I determine if it is the Billion 5200S modem/router
that is preventing pings, or if it is the CentOS-6 MicroServer
attached to the modem/router?
...
Is there any simple way, short of using something like ethereal,
of
On Wed, 2011-07-20 at 14:21 +0200, Ljubomir Ljubojevic wrote:
Ljubomir Ljubojevic
(Love is in the Air)
Congratulations.
Are you planning to invite us to the wedding :-)
--
With best regards,
Paul.
England,
EU.
___
CentOS mailing list
On 7/20/2011 5:51 AM, Timothy Murphy wrote:
Further to my question,
how can I determine if it is the Billion 5200S modem/router
that is preventing pings, or if it is the CentOS-6 MicroServer
attached to the modem/router?
I don't see any reference to ICMP on the modem web-page.
On the
Always Learning wrote:
On Wed, 2011-07-20 at 14:21 +0200, Ljubomir Ljubojevic wrote:
Ljubomir Ljubojevic
(Love is in the Air)
Congratulations.
Are you planning to invite us to the wedding :-)
Hehehehe, no.
My first name (Ljubomir) is old Slavic name that means He who loves
peace,
Markus Falb wrote:
I would use tcpdump on the CentOS Server to be sure the icmp echo
requests are arriving or not. tcpdump is something like ethereal but it
could be as easy as
$ tcpdump -l proto \\icmp
or
$ tcpdump -l proto \\icmp and host sourceip
or
$ tcpdump -li ethX proto \\icmp
Timothy Murphy wrote:
Markus Falb wrote:
I would use tcpdump on the CentOS Server to be sure the icmp echo
requests are arriving or not. tcpdump is something like ethereal but it
could be as easy as
$ tcpdump -l proto \\icmp
or
$ tcpdump -l proto \\icmp and host sourceip
or
$ tcpdump
Ljubomir Ljubojevic wrote:
ICMP packets are blocked by Billion, it's 99% chance, since public IP
resides on the Billion. Only way (known to me) to pass ICMP to your
CentOS server (on cheap modem/routers) is to do 1:1 NAT (all connections
to all ports are redirected to system behind it with
Timothy Murphy wrote:
So I assume the modem is rejecting the ICMP packets.
As I said, I don't see anything about this
in the modem documentation or on the modem web-site.
I suppose another possibility is that some site along the way
rejects ICMP packets?
traceroute seems to timeout in Milan:
Timothy Murphy wrote:
Timothy Murphy wrote:
So I assume the modem is rejecting the ICMP packets.
As I said, I don't see anything about this
in the modem documentation or on the modem web-site.
I suppose another possibility is that some site along the way
rejects ICMP packets?
Timothy Murphy wrote:
I'm running CentOS-6 on an HP MicroServer
with a Billion 5200S modem/router connecting to the internet.
I'm running the standard CentOS-6 firewall on the server.
(1) I can open port 22 on the Billion, allowing me to ssh in from outside.
But for some reason I cannot
On Tuesday 19 July 2011 09:11, the following was written:
Timothy Murphy wrote:
I'm running CentOS-6 on an HP MicroServer
with a Billion 5200S modem/router connecting to the internet.
I'm running the standard CentOS-6 firewall on the server.
(1) I can open port 22 on the Billion,
Ljubomir Ljubojevic wrote:
(1) I can open port 22 on the Billion, allowing me to ssh in from
outside. But for some reason I cannot ping the same address from outside.
This is due to modem refuses to answer to pings. You might have option
to allow it in modem config.
Ping (ICMP) does not
Robert Spangler wrote:
On Tuesday 19 July 2011 09:11, the following was written:
Timothy Murphy wrote:
I'm running CentOS-6 on an HP MicroServer
with a Billion 5200S modem/router connecting to the internet.
I'm running the standard CentOS-6 firewall on the server.
(1) I can
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