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May
15
awarded  Caucus
Apr
23
awarded  Popular Question
Apr
8
comment Ghost “vlan 0” tags added to ethernet frames in CentOS guest under OpenStack
Do you have an ifcfg-eth0.0 file in /etc/sysconfig/network-scripts/?
Apr
8
comment Ghost “vlan 0” tags added to ethernet frames in CentOS guest under OpenStack
The switch could be adding the tags. What does your VLAN topology look like?
Apr
8
comment Can't reproduce arp non-response issue with spoofed packets
Lorin, very interesting issue. The requests appear identical. I'm curious what the conversation looks on the other endpoint. What ARP traffic does 10.40.0.5 see?
Apr
3
answered Default gateway and bridged interface
Apr
3
answered Bandwidth Usage: ActiveSync vs IMAP/CalDAV/CardDAV
Apr
3
comment Issues with connecting to network resources after segmenting network
Firewalls don't tend to cause chronic issues, but lets not rule anything out. Take a problematic printer, and do a continuous ping to it from an affected station. Do you see packet loss? Also what do the packet counts look like on your switch ports, is it possible that we have a switching/routing loop somewhere?
Apr
3
comment Issues with connecting to network resources after segmenting network
Few questions to get started: What are the IPs/Netmasks/gateways of the various networks? What is the route table on the Mikrotik, and what interfaces are configured on it?
Apr
3
answered tcpdump on interface when pinging nonexistent hosts on local network
Feb
27
answered DD-WRT routers and subnets - how to get devices on same subnet to see each other?
Feb
25
comment Take screenshot from server screen while disconnected from RDP
@NielsBrinch Sorry I don't know that one. Probably would try connecting a monitor locally and setting the resolution from a local session. See if it carries over to the console session. Alternatively I'd look for a registry setting that controlled that behavior. Since I do not have something that takes screenshots while I'm disconnected, I'd have to start with determining a way to test.
Feb
25
comment Take screenshot from server screen while disconnected from RDP
@ Simon Although you can't log into it via the usual mstsc switch, you can still see it there when you run query session.
Feb
25
comment Take screenshot from server screen while disconnected from RDP
It appears that thecleaner was right. Disconnected rdp session aren't drawn at all. Even minimizing them would cause trouble. Using /dest:console as a placeholder, or an alternative remote access tool like VNC are the only workarounds.
Feb
25
revised Take screenshot from server screen while disconnected from RDP
added 622 characters in body
Feb
25
revised Take screenshot from server screen while disconnected from RDP
added 622 characters in body
Feb
25
answered Take screenshot from server screen while disconnected from RDP
Feb
21
comment Joining subnets over multiple Sonicwall interfaces
Yes that looks correct. Now you would just need to make sure that X3 and X4 trust each other. IIRC sonicwall does this with 'trusted zones' and 'trusted interfaces'.
Feb
21
comment Wrong Gateway assigned
What does the arp table on the 10.0.1.1 look like?
Feb
21
revised Joining subnets over multiple Sonicwall interfaces
added 229 characters in body