I use "Remote Desktop Connection" from my windows PC to connect to remote Linux Virtual Machine running Ubuntu 18.04.2 LTS.
I open terminal window and type following command to clone git repository:

git clone git://git.yoctoproject.org/poky_local_copy

The response is as follows:

I open Mozilla Firefox Web Browser, enter git.yoctoproject.org and connect.  Why Web Browser connects to this site but from terminal cannot connect to this site?

BGP Configuration with and without another IGP

in the topology below, I would like to know if :

-- BGP needs to be configured on R1  R2,R3,R4  without any other IGP (OSPF)configured on the same routers.
-- Or BGP can be configured only on R1 and R4, but IGP (OSPF) should be configured on all 4 routers R1,R2,R3,R4

Thanks

Hi, I ran this wireshark network protocol analyzer with no programs open, including no background programs. I ran it for three minutes. I have the report in csv and in pcapng format.(I've changed the latter to a .txt extension to upload).

Can someone let me know if there's any odd network activity going on? Thanks. If you need more information, let me know, this is way over my head.
packet-dissection.csv
packets---Copy.txt

NFS on netapp filer - very slow only when over a hop


hi out of the blue. - juniper in the core  CIFS has slowed to crawl off a netapp - engineer did put a route in but only in prep for a change - it seems from that point on NFS browse to the netapp is soo slow its unusable
we since removed the route - but its just as bad no difference
dont even know if what he did was related

anyway if you are on the same subnet as the cifs netapp filer  (eg on a server in the same subnet )CIFS  performace is fine!!!
as soon as a hop to get to filer cifs share - its hopeless

Netapp 8.3 data on tap - Juniper core switched HELP

I need to analyze PCAP files and APIs for an MVNE I am working with.  I can definitely see some things in the PCAP files they sent, but I would like to be able to do a lot more and more deeply analyze it.  I have been using wireshark to break it down but what is the best way to attack analyzing these files.  Is there a resource out there, program, best practice, etc.

I am attempting to configure VOIP multicast paging for a member school district. Currently, when a phone page is initiated, the green speaker light on the phone comes on and the mic red (mute) light comes on at same time.However, the page is not able to be heard on any phones. I am told this did work at one time but no one seems to be clear when it stopped working. As of yesterday, I upgraded their WAN switch and I am attempting to get the paging to work again.

Specifics.

Cisco Informacast server (Handles paging) is located on the WAN and is directly connected to a  vlan 110 port (near-end)
VOIP phones are located at the district on the far end of our WAN (far-end)

Near end switch connected to Informacast server on vlan 110:
HP 5412R , J9851A running KB.15.17.0007

Far end switch hands all vlan 110 VOIP traffic off to VLAN 72 (Phones):
Aruba 3810M, JL071A running KB.16.07.0003

Vlan 110 is configured on both switches and vlan 72 is only configured on the far end.


Obviously, the config is non-working (copied over from old switch) and has been modified in an attempt to resolve the issue but I will post for reference and advice on what to change.

near end switch vlan 110 config:
vlan 110
name "VLAN110"
untagged A3,B5-B6
tagged
A4-A9,A11-A19,A21-A22,A24,B1,B4,B7-B8,B13-B22,C1-C24,D1-D24,E1-E24,F1-F22
ip address 10.201.0.1 255.255.248.0
ip igmp
ip igmp forward A1,A3-A24,B1-B2,B4-B8,B10,B12-B22,C1-C24,D1-D24,E1-E24,F1-F22
qos priority 7
forbid B2
…

I have a scenario where I need a load balancer
When a new tcp connection is initiated from the client, the load balancer much assign a server, and always route all traffic from that that to the server it initially picked

When I netstat, I see and ipaddress and port for the client. (connection) so it makes sense to use this as the identifier for that client

Is there any software in exisitance to do this? Or do. I need to write my own?

ABR in Stub area not blocking External Routes

In the topology above I have configured R2 area 1 as stub the same for R3
R3 is blocking External Routes E2 and injecting IA default routes, but R2 is still allowing E2 [External routes]

R2#sh run | sec ospf
router ospf 1
 area 1 stub
 network 192.168.12.0 0.0.0.255 area 0
 network 192.168.23.0 0.0.0.255 area 1
R2#

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R3#sh run | sec ospf
router ospf 1
 area 1 stub
 network 192.168.23.0 0.0.0.255 area 1
R3#

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R2#sh ip route ospf
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
       a - application route
       + - replicated route, % - next hop override

Gateway of last resort is not set

      7.0.0.0/32 is subnetted, 1 subnets
O E2     7.7.7.7 [110/20] via 192.168.12.1, 00:41:55, Ethernet0/0
      9.0.0.0/32 is subnetted, 1 subnets
O E2     9.9.9.9 [110/20] via 192.168.12.1, 00:41:55, Ethernet0/0
      11.0.0.0/32 is subnetted, 1 subnets
O E2     11.11.11.11 [110/20] via 192.168.12.1, 00:41:55, Ethernet0/0
O     

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…

OSPF Routing table not showing OSPF Routes

in the topology above

I have configured ospf on R5,R6,R8,R9 in Area3 , however the OSPF routes show only on R5 and R6 but not for Area3 ,  R8 and R9 do not show OSPF routes in their table
I can ping between all 4 routers

Though every now and then a message about OSPF Adjacency comes up on the console
*May 17 21:46:07.003: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.99.9 on Ethernet0/0 from LOADING to FULL, Loading Done
but when I run Show IP Route , no OSPF routes show up

R8#  sh ip route
      192.168.99.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.99.0/24 is directly connected, Ethernet0/0
L        192.168.99.8/32 is directly connected, Ethernet0/0
R8#

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R9#show ip route
      192.168.99.0/24 is variably subnetted, 2 subnets, 2 masks
C        192.168.99.0/24 is directly connected, Ethernet0/0
L        192.168.99.9/32 is directly connected, Ethernet0/0
R9#

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it looks like that there is also Neighborship formed:

R8#sh ip ospf neighbor

Neighbor ID     Pri   State           Dead Time   Address         Interface
192.168.99.5      1   2WAY/DROTHER    00:00:35    192.168.99.5    Ethernet0/0
192.168.99.6      1   FULL/DR         00:00:33    192.168.99.6    Ethernet0/0
192.168.99.9      1   FULL/BDR        00:00:[code]

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[/code]

R5 and R6 OSPF table does not show the OSPF routes for Area 3 which is the Network 192.168.99.0/24

R5#sh ip …

I am just curious if every ISPs will accept a /24 subnet for BGP advertisement.  If not, is there a way to find out what they do accept and/or who doesn't accept this?

Secondly, we have a primary ISP that is advertise a /16 and on the secondary ISP, we advertised a /24 subnet (that is included in the /16 of the primary ISP) to test speed and throughout..etc to avoid having to bring out the primary circuit.

We're seeing some different throughput when testing with speedtest.net and when changing the server to a local city, we're getting latency error so not sure about this.

The /24 is a local subnet on the second ISP router and I Just advertised this under the BGP statement and we have a default route out with a next hop of our second ISP.  The second ISP has a static route for this /24 to us and a default route out to the internet.

Not sure what might be causing some latency errors when changing the speedtest to some local servers.   It seems to be fine if we change the server to Seattle, Washington for example and I'm located in SF.

thank you!

OSPF LSA  Updates and Hellos

on the Screenshot below , we have DR and BDR

I want to know if other routers will have to send an update(LSA type 1) to DR and BDR, or they will send an update (LSA type 1) just to the DR, and the DR will send (LSA type2) to all the routers including the BDR

OR

Other Routers  will  send an update(LSA type 1) to 224.0.0.6 then DR and BDR will get the Update but only the DR that will send (LSA type 2) to 224.0.0.5 (where all other routers are listening to)

in case of the second case , I wonder how does BDR get LSA type 2 from DR

Thank you

I've been examining the network routing table on my Windows computer, and I'm wondering why there are 3 entries instead of just 2.

At a command prompt I type "route print".

The resulting display has columns "Network Destination | Netmask", "Gateway", "Interface".

I'm wondering what the difference is between a Gateway and an Interface.

I'm thinking of a very simple Dial-Up Network setup:
The Network Adapter has the following IP address:
Is this the "Gateway" IP address, or the "Interface" IP address? And what would the other IP address be for

If I wanted my program to send some data to IP 1.1.1.1, and I want this data to go out over Network Adapter 7.7.7.7, I could add to the network routing table a line with: 1.1.1.1   255.255.255.255 for Destination and Mask, then would I add 7.7.7.7 to the "Gateway" or to the "Interface"?

My understanding is for sockets, connect sets the destination IP address, and bind sets the return IP address.

What would happen if I created two sockets, socka and sockb, and did:

socka.connect(10.1.1.2);
socka.bind(99.0.0.1);
sockb.connect(99.0.0.1);

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If I now send some data to sockb, will the data go to socka and then will socka forward that data to IP address 10.1.1.2?