All Questions
1
vote
0answers
8 views
Does normal packet flow within a virtual router in a PA firewall require a rule?
I'm trying to understand packet flow within a Palo Alto firewall. Our firewall has one "inbound" leg and three "outbound" legs corresponding to different exterior VLANs. The exterior VLANs are used ...
0
votes
1answer
13 views
Can a Google server only be accessible to Verizon customers and those in the SouthWest FL area?
This is a question I would have never asked had I come across what I have in my testing of why google was having issues loading at the various company stores. I always assumed that a google server ...
-1
votes
0answers
15 views
VPN_client in Windows and Linux
This Is a scenario which allow us to connect Smart devices to a LNS (centos VPN server) passing by firewall
In smart phones I can connect by this configuration:
my question what are the ...
0
votes
0answers
14 views
Does CentOS6 kernel drops ICMP packets with wrong chksum?
This might be a strange question but it got diagnosed pretty weird.
Scenario : A remote country network pings a xen virtual machine ( CentOS6 ) using ISP1
Result : Packet drops observed "by" remote ...
0
votes
0answers
8 views
Page load time of websites [on hold]
I'm trying to find a solution to a "problem" which occurs when opening webpages. I hope I'm one the right stack exchange site here, "network engineering" sounds like the experts on this topic are here ...
0
votes
0answers
12 views
Ping to Virtual Access interfaces Cisco 7609 Router
Good afternoon,
I am trying to ping from a 7609 router to a (directly connected) virtual-access interface.
When I launch the ping I can see this on the debug ip packet detail command:
Mar 17 ...
3
votes
2answers
141 views
Maximum size of the IPv4 header
I know the IP Header length are Min 20 bytes and Max 60 bytes. But why? Why is that the IP header length limited to 60 bytes? Is there anybody here could explain to me. Thank you.
0
votes
1answer
17 views
How do I restrict a network interface to the local subnet only in Windows Server 2008 r2? [on hold]
I have a machine running Windows Server 2008 r2 with two ethernet cards. I want one card to only handle interactions between the machine and the internet and the second card to only handle ...
1
vote
2answers
48 views
ARP request outside of LAN; Target machine or router response?
If I sent an ARP request to the target machine, which is in over Internet and has 2 routers between, what will the target IP address on my request (0001) packet be? Will it be the Router IP address, ...
0
votes
0answers
20 views
How do mobile OS creators implement server push? [on hold]
Most of you are aware that iOS and Android use push notifications to inform the phone of any arbitrary event. I am interested in how one would implement such a server-initiated notification system. As ...
0
votes
0answers
11 views
How to calculate good put from the ns2 trace file? [on hold]
I was able to get the through put by writing an awk script. But finding good put is a more computationally intensive. I am ready to write a TclClass to find good put, but unable to understand how. ...
6
votes
1answer
206 views
SNMP v2: What is the difference between SNMP v2c and SNMP v2u
I usually hear about SNMP v2c. But recently I came across v2u when configuring an SNMP agent.
What are the differences between the SNMP v2 flavors v2c and v2u?
And which is the more recent version ...
0
votes
1answer
34 views
SNMP: Configuring/Enabling SNMPv3 on Cisco IOS and SNMP Agent
I have been configuring and using SNMP v2c on Cisco routers.
Due to the obvious advantages in SNMP v3, I am planning on enabling SNMP v3 on SNMP v3 supported devices.
Could someone let me know:
...
1
vote
1answer
70 views
GNS3: Configuring/Emulating a Juniper Router on GNS3
I need to be able to emulate a Juniper Router (JunOS) on GNS3.
I have seen that this is available as on option in the 'Node Types' list on GNS3.
When I try to use this to add a Juniper Router to ...
1
vote
1answer
27 views
Down log on ME 3400
What command is used to check down log on ME 3400. I am trying to see if there was any bounce on the interfaces.
Please help me out.
