On 07/20/2018 10:51 AM, Ed Greshko wrote:
On 07/20/18 21:19, Jeffrey Ross wrote:
looking at the arp table on my system I see that I have one entry that shouldn't be
there -
proxy10.fedoraproject.org (209.132.181.15) at 50:3d:e5:f5:b6:c0 [ether] on enp0s25
First, the subnet this machine lives on is 172.18.19.0/24 and all of the other arp
entries are correct as they are for hosts on my subnet. The MAC address listed for
"proxy10.fedoraproject..." is my router which tells me that my router is supplying
a proxy-arp response which I'm ok with, at least for now.
So my questions are -
1) Why is this fedora system not following the routing table to reach
209.132.181.15, there is no route other than default that would match this network
2) More importantly why is this machine trying to reach proxy10.fedoraproject.org
??? (currently there are no open sessions to this destination)
System is Fedora 28 with all the latest updates, and I have no recollection of ever
configuring a fedoraproject proxy.
Partial answer due to the late hour here.
You probably have NetworkManager-config-connectivity-fedora installed which will
connect with http://fedoraproject.org/ on a periodic basis.
209.132.181.15 is an IP address associated with fedoraproject.org
[root@meimei conf.d]# host 209.132.181.15
15.181.132.209.in-addr.arpa domain name pointer proxy10.fedoraproject.org.
and
root@meimei conf.d]# host fedoraproject.org
fedoraproject.org has address 140.211.169.196
fedoraproject.org has address 67.219.144.68
fedoraproject.org has address 8.43.85.67
fedoraproject.org has address 152.19.134.142
fedoraproject.org has address 152.19.134.198
fedoraproject.org has address 140.211.169.206
fedoraproject.org has address 185.141.165.254
fedoraproject.org has address 209.132.181.16
fedoraproject.org has address 209.132.181.15
fedoraproject.org has address 209.132.190.2
fedoraproject.org has IPv6 address 2605:bc80:3010:600:dead:beef:cafe:fed9
fedoraproject.org has IPv6 address 2610:28:3090:3001:dead:beef:cafe:fed3
fedoraproject.org has IPv6 address 2604:1580:fe00:0:dead:beef:cafe:fed1
fedoraproject.org mail is handled by 20 mx2.redhat.com.
fedoraproject.org mail is handled by 10 mx1.redhat.com.
I did find the DNS entry for proxy10 being associated with
http://fedoraproject.org, however the only problem is I should NEVER see
an arp entry for an IP address not on my subnet
and obviously 209.132.181.15 is not on my subnet of 172.18.19.0/24.
so the original question remains, why am I seeing an ARP entry for an IP
address not on my subnet.
second, somewhat new question, how do I stop networkmanager from polling
fedora project?
Jeff
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