This is possible and checking the arp tables would show what the exit interface for external traffic is but knowing okech he's probably already checked most of the obvious stuff like where routes point to, does the VPN/vLan install an overriding one? Jgitau Sent from my iPhone On Aug 13, 2013, at 12:33, John Doe <fivepings@gmail.com> wrote:
Hi Okech,
I was hoping for some traceroutes but none so far:-)
In any case, my hypothesis is still on the return path. The server is routing traffic meant for the public IP address via the Private VLAN interface instead of the other interface. Why is the question.
How many default gateways do you have on the server? Have you specified any static routes on the server?
On Mon, Aug 12, 2013 at 2:32 PM, John Gitau <jgitau@gmail.com> wrote:
Have you looked at ARP ? Sounds like the interface either arps to the wrong Mac/ip or listens listens/opens a socket on the wrong ip. Easy to check with basic tools. Tcpdump would would be a good place to start. Arp -na or arping might saidia... Among others
Sent from my iPhone
On Aug 12, 2013, at 12:18, 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
_______________________________________________ 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