Re: Odd ping problem

2017-03-02 Thread Gary Stainburn
On Monday 27 February 2017 17:50:24 Rick Stevens wrote: > That would clean it up, yes. What I recommended are settings we use > when we set up clusters of servers on load balancers using DSR (direct > server return). The main problem you had is that you had two different > physical NICs on the same

Re: Odd ping problem

2017-03-01 Thread Cameron Simpson
On 24Feb2017 10:19, Gary Stainburn wrote: Here's an odd one for you. I have a Fedora 19 box - GROUCHO - that is the DNS/DHCP/email/.. server for one of my LANs On there I have a home-grown network status monitor which pings a list of IP's and monitors the state, reporting anything that goes

Re: Odd ping problem

2017-02-27 Thread Rick Stevens
On 02/27/2017 08:01 AM, Gary Stainburn wrote: > On Friday 24 February 2017 18:51:54 Rick Stevens wrote: >> The most common issue with this sort of thing is ARP and/or route >> confusion. You have a machine with two interfaces on the same network. >> Try doing this as root on zeppo (the machine with

Re: Odd ping problem

2017-02-27 Thread Gary Stainburn
On Friday 24 February 2017 18:51:54 Rick Stevens wrote: > The most common issue with this sort of thing is ARP and/or route > confusion. You have a machine with two interfaces on the same network. > Try doing this as root on zeppo (the machine with two interfaces): > > echo "1" >/proc/sys/net

Re: Odd ping problem

2017-02-24 Thread Rick Stevens
On 02/24/2017 02:19 AM, Gary Stainburn wrote: > Here's an odd one for you. > > I have a Fedora 19 box - GROUCHO - that is the DNS/DHCP/email/.. server > for one of my LANs > > On there I have a home-grown network status monitor which pings a list of > IP's > and monitors the state, reporti

Odd ping problem

2017-02-24 Thread Gary Stainburn
Here's an odd one for you. I have a Fedora 19 box - GROUCHO - that is the DNS/DHCP/email/.. server for one of my LANs On there I have a home-grown network status monitor which pings a list of IP's and monitors the state, reporting anything that goes missing. The IP address of this host is