Dear all,
We are testing two of our servers for mq series connectivity. The scenario is, when one machine is shutting down it's services there are some scripts that do a dns update, which removes the ip address and relates it to the ip address of the other node on our dns server, and the update... (7 Replies)
Does ARP Request packet Contains MAC Address of dest during broadcast?
I found It So...
When i captured ARP Req Pkts on ethereal...
Rgds
-Meti (1 Reply)
I was checking nettl output for a unstable telnet to my server. this is part of output:
###
***********************************STREAMS/UX*******************************@#%
Timestamp : Sun Jun 22 EETDST 2008 22:14:47.492899
Process ID : Subsystem ... (4 Replies)
I'm running an arp -an on a Solaris 10 box. We're using IPMP. One of the systems is not able to see a host on the same network. The only difference between the two systems (one is having a problem, the other isn't) at least so far is the output of arp:
# arp -an | grep 224.55
e1000g5... (1 Reply)
Dear All
i have a linux proxy server which has RHEL-5 64 bit, it has two interfaces, it has the following details
eth0=10.200.14.42
eth3=10.201.14.42
default gateway=10.201.14.254
one static route=192.168.0.0/24 gw 10.200.14.254
i am facing a problem when i ping 10.201.14.42 from... (2 Replies)
About a week ago a customer hooked up a wireless router backwards to our network, causing it to serve incorrect DHCP addresses to some of them. Our networks are mostly statically assigned so this didn't cause as much damage as it might have, but now, over a week later, I still have incomplete... (1 Reply)
Hello,
I have 2 clients with Unix installed.
host1: eth0 (192.168.5.10) & eth1 (192.168.10.10)
host2: eth0 (192.168.10.20)
I've connected host1-eth1 to host2-eth0. host1-eth0 isn't connected.
I started 'tcpdump' on wonder that host2 got ARP requests for 192.168.5.10.
Any idea why host1... (2 Replies)
A customer appears to have drastically misunderstood our instructions for connecting to our WAN. He set his PC IP address to the same as one of the bridges. :mad: :wall: This caused much confusion on the network, to put it mildly. He called to complain about the poor performance of the network... (13 Replies)
Hello,
I am setting up a new RedHat server with two network interfaces.
These interfaces are on different subnets, and connected to the same firewall.
I'm trying to reach a remote IP.
It works fine from the first interface.
The second interface however, is making ARP requests instead of... (0 Replies)
Discussion started by: Wanou85
0 Replies
LEARN ABOUT POSIX
networkctl
NETWORKCTL(1) networkctl NETWORKCTL(1)NAME
networkctl - Query the status of network links
SYNOPSIS
networkctl [OPTIONS...] COMMAND [LINK...]
DESCRIPTION
networkctl may be used to introspect the state of the network links as seen by systemd-networkd. Please refer to systemd-
networkd.service(8) for an introduction to the basic concepts, functionality, and configuration syntax.
OPTIONS
The following options are understood:
-a --all
Show all links with status.
-h, --help
Print a short help text and exit.
--version
Print a short version string and exit.
--no-legend
Do not print the legend, i.e. column headers and the footer with hints.
--no-pager
Do not pipe output into a pager.
COMMANDS
The following commands are understood:
list [LINK...]
Show a list of existing links and their status. If no further arguments are specified shows all links, otherwise just the specified
links. Produces output similar to:
IDX LINK TYPE OPERATIONAL SETUP
1 lo loopback carrier unmanaged
2 eth0 ether routable configured
3 virbr0 ether no-carrier unmanaged
4 virbr0-nic ether off unmanaged
4 links listed.
status [LINK...]
Show information about the specified links: type, state, kernel module driver, hardware and IP address, configured DNS servers, etc.
When no links are specified, an overall network status is shown. Also see the option --all.
Produces output similar to:
State: routable
Address: 10.193.76.5 on eth0
192.168.122.1 on virbr0
169.254.190.105 on eth0
fe80::5054:aa:bbbb:cccc on eth0
Gateway: 10.193.11.1 (CISCO SYSTEMS, INC.) on eth0
DNS: 8.8.8.8
8.8.4.4
lldp [LINK...]
Show discovered LLDP (Link Layer Discovery Protocol) neighbors. If one or more link names are specified only neighbors on those
interfaces are shown. Otherwise shows discovered neighbors on all interfaces. Note that for this feature to work, LLDP= must be turned
on on the specific interface, see systemd.network(5) for details.
Produces output similar to:
LINK CHASSIS ID SYSTEM NAME CAPS PORT ID PORT DESCRIPTION
enp0s25 00:e0:4c:00:00:00 GS1900 ..b........ 2 Port #2
Capability Flags:
o - Other; p - Repeater; b - Bridge; w - WLAN Access Point; r - Router;
t - Telephone; d - DOCSIS cable device; a - Station; c - Customer VLAN;
s - Service VLAN, m - Two-port MAC Relay (TPMR)
1 neighbors listed.
label
Show numerical address labels that can be used for address selection. This is the same information that ip-addrlabel(8) shows. See RFC
3484[1] for a discussion of address labels.
Produces output similar to:
Prefix/Prefixlen Label
::/0 1
fc00::/7 5
fec0::/10 11
2002::/16 2
3ffe::/16 12
2001:10::/28 7
2001::/32 6
::ffff:0.0.0.0/96 4
::/96 3
::1/128 0
EXIT STATUS
On success, 0 is returned, a non-zero failure code otherwise.
SEE ALSO systemd-networkd.service(8), systemd.network(5), systemd.netdev(5), ip(8)NOTES
1. RFC 3484
https://tools.ietf.org/html/rfc3484
systemd 237NETWORKCTL(1)