Hi Okech, Did you sort this out? I am thinking the problem is the return path. Can you post traceroute output from some of the devices that loose connectivity? When secondary interface is enabled and when its not.... On Mon, Aug 12, 2013 at 12:27 PM, Bernard Wanyama <bwanyama@eis.co.ug>wrote:
You could check: - the routing table (netstat -nr) - the interfaces and ports on which your services are listening (netstat -panet) - the traceroutes.... - and the firewall rules (iptables).
This will give you an idea of the state of IP on your machine.
Kind regards, Bernard
On Mon, Aug 12, 2013 at 12:18 PM, Okechukwu <okechukwu@gmail.com> wrote:
Well, still stuck - I have to completely disable the second interface for the incoming connections to work - really perplexed!
./Ok3ch
On Mon, Aug 12, 2013 at 10:00 AM, Okechukwu <okechukwu@gmail.com> wrote:
@Tony - the service is the IP service :-) Simple pings & telnet don't work anymore
@Wash - from my experience, it decides how it thinks IP services need to behave on a box, for complete control, I always use the networking scripts at /etc/sysconfig/networking-scripts/ to get the actual control I need. Network manager to me works best on a desktop environment with lots of different dynamic connections
I've removed NM & am now even in a worse state :-( Cant now reach the interface even when the private is removed - Let me troubleshoot this one first.
./Ok3ch
On Mon, Aug 12, 2013 at 9:52 AM, Odhiambo Washington <odhiambo@gmail.com
wrote:
What makes Network Manager a monster? I am kinda blank on that, not being Linux savvy:)
On 12 August 2013 11:36, Okechukwu <okechukwu@gmail.com> wrote:
Shit! NetworkManager is on! Let me uninstall that monster. The private IP has not gateway assigned, so routes are not affected at all - I have checked & double checked this.
./Ok3ch
On Mon, Aug 12, 2013 at 9:33 AM, Odhiambo Washington < odhiambo@gmail.com> wrote:
On 12 August 2013 11:24, Okechukwu <okechukwu@gmail.com> wrote: > Hi All, > > Am having an issue that has perplexed me so much am now doubting my > entire > IP knowledge. I have to also say that I have done this setup a
numerous
> amount of times before. > > I have a server for monitoring (cacti) and slots well with a public IP > address A.A.A.A working fine and monitoring all devices perfectly. I > have a > separate management VLAN on a different switch with all private IP's > 192.168.10.0/24. Now, what baffling me is that immediately I assigned > the > second network interface of the server to this private IP VLAN, my > server > loses all incoming connections to its public IP A.A.A.A although the > server > itself can go out and access all other services (Internet, SNMP) > perfectly. > > Maybe its something am missing, but this has stuck with me since > Thursday > last week! Anyone with any pointers?
Is something changing the routes when you assign this interface the private IP?
Perhaps you should start by comparing the routes (netstat -rn) before and after the assignment of the private IP and see what paths are taken using traceroute.
-- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254733744121/+254722743223 "I can't hear you -- I'm using the scrambler." _______________________________________________ skunkworks mailing list skunkworks@lists.my.co.ke ------------ List info, subscribe/unsubscribe http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks ------------
Skunkworks Rules http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 ------------ Other services @ http://my.co.ke
_______________________________________________ skunkworks mailing list skunkworks@lists.my.co.ke ------------ List info, subscribe/unsubscribe http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks ------------
Skunkworks Rules http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 ------------ Other services @ http://my.co.ke
-- Best regards, Odhiambo WASHINGTON, Nairobi,KE +254733744121/+254722743223 "I can't hear you -- I'm using the scrambler." _______________________________________________ skunkworks mailing list skunkworks@lists.my.co.ke ------------ List info, subscribe/unsubscribe http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks ------------
Skunkworks Rules http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 ------------ Other services @ http://my.co.ke
_______________________________________________ skunkworks mailing list skunkworks@lists.my.co.ke ------------ List info, subscribe/unsubscribe http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks ------------
Skunkworks Rules http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 ------------ Other services @ http://my.co.ke
_______________________________________________ skunkworks mailing list skunkworks@lists.my.co.ke ------------ List info, subscribe/unsubscribe http://lists.my.co.ke/cgi-bin/mailman/listinfo/skunkworks ------------
Skunkworks Rules http://my.co.ke/phpbb/viewtopic.php?f=24&t=94 ------------ Other services @ http://my.co.ke