Questions tagged [unicast]
The unicast tag has no usage guidance.
16
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No ARP response using Unicast on VxLAN Overlay IPs in Linux server configurations
I am trying to setup a basic Unicast VxLAN between 3 Ubuntu 22.04 virtual servers (underlay IPs : 172.16.30.26/24, 27 and 28) running on VirtualBox. No firewalls are active. UFW is removed. After the ...
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Why do I see unicast packets for a different IP when I sniff my interface?
I hook up a laptop via gigabit Ethernet to my corporate network and run Wireshark on the interface. I expect to see all broadcast and multicast traffic and unicast traffic either originating from or ...
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How should I configure properly my LAN to use IPv6 for communication on LAN and WAN?
I would like to use IPv6 on my LAN and would like to be able to go out to the WAN as well.
My network is a classic IPv4 environment. It works well.
My ISP provides Global Unicast IPv6 address on the ...
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DHCP & macvlan: Only first virtual interface works with unicast DHCPREQUEST
What I am trying to do?
I'm trying to acquire 3 public IP addresses via DHCP on a single physical ISP upstream cable.
What goes wrong?
Renewals go kind of wrong. From interfaces, virtual0 works just ...
3
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1
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181
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MAC layer unicast flooding a switched network
The network in question:
It is a fully switched network with no routing. There is no known RSPT problems.
There are 10 small switches. Each small switch has many small industrial devices talking to ...
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2
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415
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VXLAN with unicast only transport?
I started looking into VXLAN recently and I am trying to grasp the basic concepts of it. The standard use of VXLAN transport appears to be multicast, however many ISPs do not allow multicast traffic. ...
2
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1
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8k
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Keepalived: multicast vs unicast
I'm planning to deploy a several keepalived routers to maintain floating IPs for different database clusters. The plan is to deploy a separate VRRP instance on each cluster locally according to this ...
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How to determine IP address is unicast or anycast? [closed]
I searched the Internet and unable to find an answer. Anyone can help?
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1
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6k
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KeepAliveD, Rackspace Cloud, Unicast - both LB's enter MASTER state...?
I have set up two HAProxy Load Balancers in an Active->Passive pair.
KeepAliveD will be used for failover between MASTER and BACKUP servers.
Like most clouds, Multicast is not supported so I cannot ...
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2
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515
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Oracle Weblogic 10.3.5 Cluster creation issues
I'm trying to create a two node cluster with Oracle Weblogic 10.3.5. During the "Fusion Middleware Configuration Wizard" setup process, I'm not sure what to put in for the "Cluster Address" if I ...
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Can heavy UDP traffic create network congestion?
I have three IP addresses using the same gateway. Two of them are configured as a cluster with multicast address setup. If there is a heavy UDP traffic between those two, can that affect the network ...
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could corosync can support unicast heartbeat mode?
could corosync can support unicast heartbeat mode?
from another thread in serverfault, some guy raised below corosync conf:
totem {
version: 2
secauth: off
interface {
...
7
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1
answer
13k
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Why ARP request is unicast?
I have a wireshark capture that indicating a unicast ARP request from source to destination.
As per my understanding ARP requests (including gratutious ARP) use broadcast.
In what case the unicast ...
5
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5k
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Corosync unicast issue with different nets
I'm using a setup (on our staging-system) with 2 root-servers and 1 fail-over-ip.
As software we use corosync and pacemaker.
Corosync is configured for multicast communication via port 5405.
--> ...
5
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2
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6k
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Switch Floods Packets that should be Unicast
I work as a Network Admin in a big company.
Lately we noticed an issue with our network infrastructure.
Basically our network backend lies on a Catalyst as main L3 backend switch, and few Cisco Nexus ...
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1k
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NLB Traffic Stops on all nodes when a single node is rebooted
We had a 2 node NLB cluster running IIS websites on virtual machines. Both nodes were online, the balancer functioned exactly as expected, (if traffic is 50/50 balanced, and you stop or drainstop a ...