Just 'forgot' which vlan this server was on internally, so I set the
rules on the wrong vlan.
Well back to your regularly programmed...
On 03/27/2014 03:55 PM, Robert Moskowitz wrote:
On 03/27/2014 03:40 PM, poma wrote:
On 27.03.2014 20:35, Robert Moskowitz wrote:
On 03/27/2014 12:50 PM, Robert Moskowitz wrote:
This is from a Fedora 20 client testing to a Centos 6.5 server.
I can do a ping6 with no problems, but I cannot 'ssh -6' to the server
(ssh -4 works). I have reason to suspect the challenge is in my PPPoE
link with a restricted MTU size that v6's PMTU is not working right
with.
So my question is: Is there a way to specify the MTU size for things
like ssh (and http) to use?
I was told that:
To figure out where I could put new MTU values:
“find /sys |grep mtu”
To set the MTU for my eth0, as root:
“echo 1300 >
/sys/devices/pci0000:00/0000:00:03.0/0000:02:00.0/net/eth0/mtu”
"ifconfig eth0" reports an MTU of 1300 now.
And this works. But it is not my problem. Still not getting a TCP
connection. Going to have to check with wireshark. Maybe it will
help me...
Considering how much data you've provided us. :)
I was told elsewhere that my ipv6 problem was an mtu path discovery
problem. Try forcing my mtu so that it will get through whatever path
(claim PPPoE link is the problem). So, all I was asking was how to
set the mtu for a tcp connection. I asked here and on the list where
I was testing the ipv6 app. There someone said, not be app, but by
interface, and showed how he did it. So that is the story to now.
But a 1300 mtu still does not work. So fire up wireshark. I think it
is a firewall problem. SO I will go away again and look at the
firewall.....
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