Networking Protocols

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Networking software modules are interfaced with a framework implemented on the machine's operating system that implements the networking functionality of the operating system. The best known frameworks are the TCP/IP model and the OSI model. Systems typically do not use a single protocol to handle a transmission. Instead they use a set of cooperating protocols, sometimes called a protocol family or protocol suite.[9] Some of the best known protocol suites include: IPX/SPX, X.25, AX.25, AppleTalk and TCP/IP. Other protocols indirectly related to networking include the hypertext transfer protocol (HTTP) and its related technologies, Dynamic Host Configuration Protocol (DHCP), Domain Name Server (DNS) and other Internet protocols.

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Hello.
I am looking for anybody who would assist me to set up my Zabbix server. It's already installed but I need a complete guide how to set up Items, Triggers and so on... we use SNMP. I also need some recommendations which items and triggers use while monitoring switches, APs, servers, disk arrays, virtual machines and domain computers.

I appreciate any help. Thank you.
0
I have a client with a Sonicwall TZ 215  (SonicROM 5.0.5.6 ) that is using a SonicPointN for wireless access. The SonicPoint is setup on Physical interface X2 with a 192.168.17.0 network and the X2 interface also has two VLAN Sub-Interfaces on it, X2:V18( 192.168.18.0) and X2:V19 (192.168.18.0). These VLAN’s are used to create the two wireless zones, one for Guest and one for employee’s. The customer now wants to add a remote lighting “Hub” that is manipulated via an Android or iPhone apps. Even though the “Hub” is accessed via the internet the initial setup has to be done with the phone app being able to see the unit on the same local network segment. Since the hub only has a Ethernet jack and the phone only has wireless, the phone and the hub need to be on the same wireless network. So I what I am trying to accomplish and can’t seem to get working it make the X3 interface on the Sonicwall be on the same VLAN Sub-Interface as the wireless access point. In this case that would be X2:V18. So to sum the whole deal up.  I need to get X3 interface assigned to the same network (192.168.18.0) and the VLAN-Sub-Interface as X2:V18. I can’t seem to get it the way I need, no problem getting the X3 on the X2 network (192.168.17.0) but not on the X2:V18. Any help would be appreciated. Thanks

Glenn Thibeault
Onsite Information Technologies
0
I was reading as below

TCP - is a transport layer protocol. It works over an IP network
HTTP - is an application protocol. It works using TCP on an IP network

i was not clear. Does HTTP also uses HTTP
what other protocols there in networking.

nay good link, resources or free video tutorial to understand clearly these things?
please advise
0
I am trying to figure out why R2 does not see S2 as its eigrp nei (see diagram). R1 can see S1 and R2. The only difference is a L2 switch between R2 and S2.

diagram
R2#sh ip eigrp nei

IP-EIGRP neighbors for process 100

H   Address         Interface      Hold Uptime    SRTT   RTO   Q   Seq

                                   (sec)          (ms)        Cnt  Num

0   10.10.200.2     Gig0/0         12   01:02:56  40     1000  0   11

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R1#sh ip eigrp nei

IP-EIGRP neighbors for process 100

H   Address         Interface      Hold Uptime    SRTT   RTO   Q   Seq

                                   (sec)          (ms)        Cnt  Num

0   10.10.200.1     Gig0/0         12   01:03:19  40     1000  0   9

1   10.10.20.254                   13   00:41:23  40     1000  0   10

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S1#sh ip eigrp nei

IP-EIGRP neighbors for process 100

H   Address         Interface      Hold Uptime    SRTT   RTO   Q   Seq

                                   (sec)          (ms)        Cnt  Num

0   10.10.101.2     Gig0/2         13   00:43:10  40     1000  0   7

1   10.10.20.250    Vlan           11   00:42:57  40     1000  0   12

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S2#sh ip eigrp nei

IP-EIGRP neighbors for process 100

H   Address         Interface      Hold Uptime    SRTT   RTO   Q   Seq

                                   (sec)          (ms)        Cnt  Num

0   10.10.101.1     Vlan           12   00:43:56  40     1000  0   9

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0
I would like to have an Expert explain line by line (in plain English) the configuration below.

Thank you in advance.

Hub(config)#ip route 0.0.0.0 0.0.0.0 null 0
Hub(config)#ip prefix-list DEFAULT_ROUTE permit 0.0.0.0/0
Hub(config)#route-map SPOKE_ROUTERS permit 10
Hub(config-route-map)#match ip address prefix-list DEFAULT_ROUTE

Hub(config)#router bgp 65001
Hub(config-router)#bgp listen range 172.16.123.0/24 peer-group DMVPN_SPOKES
Hub(config-router)#neighbor DMVPN_SPOKES peer-group 
Hub(config-router)#neighbor DMVPN_SPOKES remote-as 65023
Hub(config-router)#neighbor DMVPN_SPOKES route-map SPOKE_ROUTERS out
Hub(config-router)#network 0.0.0.0 mask 0.0.0.0

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0
Hello EE, We have Honeywell handhelds and we've set them down in the warehouse and lost them.
I'm looking at the following: https://www.thetileapp.com/store/tiles/mate?defaultproduct=mate-1-pack&utm_campaign=702894687&utm_source=google&utm_medium=cpc&utm_content=213401926926&utm_term=-&adgroup=47867352387&gclid=EAIaIQobChMI_JjI3JLs2AIVkhuBCh3SqgB7EAYYASABEgLEnvD_BwE

but concerned if the Bluetooth will interfere with the handhelds ability to connect to WIFI if they are fixed to the handheld.
Anyone use these and can speak to it?
0
We have a Window 10 that has smb protocol negotiation problem. We find that it can establish a smb connection with a multi-function printer for file scanning.

The printer has initial a SMB session with Window 10 and Window 10 firewall has logged the request. However, it never response and no packet is dropped on Window firewall log.

Any idea ?

Thx
smb.png
0
when running the command : show ip ospf neighbors, I can see in some configurations
Full/Drother
and in other configurations
Full/-

I would like to know the difference between  OSPF  Full/Drother and  Full / -

Thank you
0
Dear all,

I am an IT support for a small company consist of 5 users. I assigned a static IP address on each computer.
Around 3 weeks one of my colleague was not able to browse the connection or see the shared folder on the server until I changed his PC's IP address. This issue reoccurred again today on his PC and on another PC.
I have done a lot of troubleshooting and the last step was changing the IP address. After changing the IP address on two PCs they were able to browse the internet connection and see the shared drives.

I am wondering what is the magician with changing the IP address. Please assist me because I am looking for a solution to avoid keep changing the IP addresses form time to time.
0
Hi Guys,

We have an IP block from the ISP
Thus a couple of public IP's assigned, example:
196.31.231.80
196.31.231.81
196.31.231.82

Our NAT policies on 196.31.231.80 over X1 interface is working well.

I've been trying to setup additional NAT policies on 196.31.231.81, but experiencing a connection issue.
Which brings me to the following questions:

1.  Is it necessary to setup a Virtual Interface for 196.31.231.82 on X1?
(255.255.255.0)
Or could the NAT rules simply refer to X1?

2.  I tried setting up a Virtual Interface on X1 for 196.31.231.82, but it complains about the same subnet used,
What should the subnet for the Virtual Interface be?
0
Suppose I have a WAN switch with SVI interface vlan 777 and ip address 192.168.99.97/28. If I want that specific address to advertise to the other side of the WAN connection (another interface) what ne.eds to be in the router process?

router ospf 1
router-id 192.168.99.0
no passive-interface 777
network 192.168.99.97 0.0.0.15 area 192.168.99.0
network 192.168.99.0 0.0.0.63 area 0

Should that be enough to get 192.168.99.97 advertised into ospf? Thank you.
0
In:
https://www.experts-exchange.com/questions/29078131/Peer-to-peer-network-names.html#a42433873

art lee said:
build a samba wins server on and old pc using Linux distro with a sambal gui
and make it the master browser

So, I researched the idea a bit and, it appears that if one were to introduce such a server, it could be connected to the network and take over name service.

Could it be turned off to return to the original "normal"?  That would seem to suggest a very low-risk approach in dealing with LAN single-subnet name service that would be reversible.

Could such a server be set up on a virtual machine?
I have thoughts of setting up a virtual machine on an existing Windows workstation for this purpose.
Seems like this would be the least intrusive approach to a critical system that's in production.

Your thoughts and suggestions would be appreciated.
0
Hi Here is Opengear IM4216. I could not find relative document on it. Is it layer2 or layer3 device? What kind of device is it? Thank you
0
Ping: 34 ms
Download: 16.46 Mbps
Upload: 16.63

Thanks.
0
Hello,

I am trying to research this question but not getting any concrete answers. I have multiple hub locations (none MPLS) connected to HQ via DMVPN. My bandwidth circuits at those external locations varies between 5Mb up to 100,Mb. My questions is, with SD-WAN, those sites with only 5Mb, will they see performance increase? Will I be able to manage this bandwidth? Or will I be cancelling the circuit with.. let's say Comcast and get a SD-WAN provider and thus leverage the speed? Also, if thats the case, will I be signing up for certain speed with the SD-WAN provider or no?
0
I am trying to understand the effect of configuring  ip summary-address rip 0.0.0.0 0.0.0.0  on the Hub router in DMVPN Network.
per the  book, Spokes should see in their routing tables the RIP default Route 0.0.0.0, but it is not the case in my LAB

Hub#sh run 
Building configuration...

Current configuration : 1636 bytes
!
! Last configuration change at 12:59:12 UTC Sat Dec 30 2017
!
upgrade fpd auto
version 15.0
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Hub
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
!
!
ip source-route
no ip icmp rate-limit unreachable
ip cef    
!
!
!
!
no ip domain lookup
no ipv6 cef
!
multilink bundle-name authenticated
!
!
!
!
!
!
!
!
!
redundancy
!
!
ip tcp synwait-time 5
! 
!         
!
!
!
!
!
!
interface Loopback0
 ip address 1.1.1.1 255.255.255.255
 !
!
interface Tunnel0
 ip address 172.16.123.1 255.255.255.0
 no ip redirects
 ip nhrp authentication DMVPN
 ip nhrp map multicast dynamic
 ip nhrp network-id 1
 ip summary-address rip 0.0.0.0 0.0.0.0
 tunnel source FastEthernet0/1
 tunnel mode gre multipoint
 !
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
 !
!
interface FastEthernet0/1
 ip address 192.168.123.1 255.255.255.0
 duplex auto
 speed auto
 !
!
interface FastEthernet1/0
 no ip address
 shutdown
 duplex auto
 speed auto
 !
!
interface FastEthernet1/1
 no ip address
 shutdown
 duplex auto
 speed auto
 !
!
!

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0
Hello - we have noticed that when we bind our 4 ports together to achieve 4GB speed on our Server 2016, and then perform a speed test with a network utility, that the results are slower for some reason.  Are there settings or some type of trick to allowing for faster speed to actually be achieved through a binded network interface?
0
If a router run a BGP with neighbors, will it use the BGP Path attributes and Best-Path algoritm to determine the best route to particular network and then put it into routing table ?  Or, does the router only check its BGP routing table only and decide which path to go for a particular network ?

Thx
0
Feb. 28 2019 update:

DUID in order to insist RCF3315 , to have replaced motherboard computers Vista 2012, and windows 10pro by Dec 2018, Physical mac keep 2 mac address as 2 interfaces to the upper R, Wan, ISP .

                      - Adaptor created at DUIDv6 mac IPv6 network , won't be controlled by IPv4 new mac 2nd address
                      - One PC can be shared on both IPv4 and IPv6 networks, shared Anti license, download app can be
                        forged ones , sync to their web, mail servers can be impacted …


Please let know the protocols and polices how to be manageable and broadcasted accurately in the compromised two interfaces by one computer strictly ?

Furthermore , for those vswitch , vwan, valn, vm all of interfered into the networking during these years … make the case more and more day by day getting unsolved like complex dilemma.



=                =               =                 =                =               =              =                =               =                =                =               =

I had this question after viewing UUID for OEM Bios no embedded Ethernet mac address , after vista II OS , is it protecting or abnormal ?.


Yes,

This topic case can be closed as:

UUID is modifiable feature as many as no limited with …
0
I configure 3 routers in a line each with their own addresses and loopbacks. I then create bgp neighborship between them and advertise their loopbacks. I can ping from R1 to R2's loopback or R2 to R3's loopback but I am unable to ping from R3 to R1's loopback.

Did I miss some configuration or is that just how it is by nature?

Thanks!
0
BGP Best path algorithm state that "Locally injected is better than iBGP/eBGP learned".

However, based on the Administrative distance :

EIGRP summary route        5
eBGP                                20
EIGRP                                 90
IGRP                              100
OSPF                             110

For "Locally injected ", does it exclude "redistribution" ?

Thx
0
Hello Experts,
I just installed sonicwall tz400w and everthing is going well except printer. Printer disconnect automatically after few minutes. I have to connect them manually again and again. I am using commercial printer by konica minolta and i use fiery app on Konica. Its working fine without the firewall.  Please help
0
Hi just using IMC on a trial basis

How exactly does it help with vlan management and ACL management can anyone outline ways in which it help us support switches is it just useful in terms of deployment etc

Any good learning material available?
0
Hi  all, please help me on this.
in the palo alto monitoring I see the ip is allowed by policy but the session end reason showing" tcp-rst-fromclient" means pls advice me this is the issue causing due to firewall denying or dropping traffic or issue on the client end.
0
I am looking to create an IP strategy for a hybrid environment (VMware on prem and Azure public integrated). I am wondering if anyone has best practice on best practices for IP strategy and more importantly on IPv6 implementation in Azure. Anything to watch out for with IP addressing, in particular IPv6.

Your help is appreciated.

Regards,
J
1

Networking Protocols

11K

Solutions

16K

Contributors

Networking software modules are interfaced with a framework implemented on the machine's operating system that implements the networking functionality of the operating system. The best known frameworks are the TCP/IP model and the OSI model. Systems typically do not use a single protocol to handle a transmission. Instead they use a set of cooperating protocols, sometimes called a protocol family or protocol suite.[9] Some of the best known protocol suites include: IPX/SPX, X.25, AX.25, AppleTalk and TCP/IP. Other protocols indirectly related to networking include the hypertext transfer protocol (HTTP) and its related technologies, Dynamic Host Configuration Protocol (DHCP), Domain Name Server (DNS) and other Internet protocols.