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Questions tagged [juniper]

A tag for questions involving Juniper Networks hardware or software.

3
votes
1answer
53 views

Juniper EX4200 QinQ question

newbie here with a very similar question to one that was posted a couple of years back ... only slightly different (so, as the original question was asked so perfectly, I've copied it nearly verbatim ...
2
votes
1answer
37 views

SSH failing from Cisco to Juniper - SSH2 CLIENT 0: Channel open failed, reason = 1752134516

Not able to SSH from Cisco IOS 15.2(2)E8 to Juniper 14.1X53-D48.1 HOST#show debugging SSH: SSH Client debugging is on HOST#ssh 1.1.1.1 *Feb 11 15:55:47.448: SSH CLIENT0: protocol version id is - ...
1
vote
1answer
34 views

Difference between PEM 'Not OK' and PEM 'Input Failure' in Juniper

I have one query with regard to PEM (Power Entity Modules) in Juniper routers. On MX series routers, 4 x PEM Modules are installed. However in case 1 x PEM is not receiving power (like Input Power ...
4
votes
0answers
60 views

Maximum number of subscribers per FPC in Juniper MX

If link with subscribers, containing about 12000 clients, goes down. One aggregated ethernet containing two links which goes to two different FPC's. All clients try to authorize on JuniperMX with the ...
0
votes
1answer
20 views

faild hardware address for ifd ge-0/0/0 failed on junos-vsrx-12.1X47-D20.7-domestic vmware machine

I have been trying to configure dhcp client on ge-0/0/0, I have asked a question before about it in this link At first the solution provided worked, but when I started the virtual machine again it ...
1
vote
0answers
36 views

BFD down - “matches wrong session” (SRX)

We have a Juniper SRX talking to a Dell. One of the BFD sessions has a problem. The Juniper reports it as being up, the Dell reports it as being down. In the BFD trace on the Juniper, I see messages ...
2
votes
1answer
60 views

Configuring BFD for OSPFv3 between IOS-XE and JunOS

i need to implement BFD on a IGP Link with dual-Stack OSPFv3 between an IOS-XE device (ASR903) and a Juniper MX480. i'm running BFD for Dual-Stack OSPFv3 members on many links between IOS-XE and IOS-...
1
vote
1answer
56 views

Rate-limiting policer on aggregated ethernet (AE) bundle

I am facing problem regarding firewall policier on Juniper MX platform. We have bundle link (AE Link) consisting of 2 x 10G links on which P2P IP is configured with customer for internet access. Now ...
4
votes
3answers
212 views

Traceroute doesn't show one hop?

I have an interesting issue where my traceroute skips one hop on the way. I do not know why but it seems to be some kind of Juniper behaviour which I do not understand yet. Blue routers are Cisco ...
4
votes
1answer
42 views

How can I retrieve a configuration programmatically on a JunOS device?

this is a part of the configuration of Juniper Router, it stands the vlans: family inet { address 3.189.239.238/29; address 3.189.239.254/28; } ...
0
votes
1answer
39 views

How to understand the juniper's chassis concept?

I searched a chassis article which is introducing the Chassis. MX960 Chassis It's a physical concept there, but I think the chassis is far more than this. because if we in the commands: there shows ...
4
votes
2answers
49 views

Juniper SR300 maximum BGP routes

I've got a Juniper SRX300 which i'm using to connect to 2 BGP peers. The documentation i've read says this SRX only supports 300,000 BGP routes, so for each peer I created an import policy (based on ...
3
votes
2answers
36 views

JunOS Use iBGP route over OSPF route

Hello i have an issue where my Juniper router doesnt advertise BGP 10.255.255.4/32 to a neighbor because in inet.0 it is not issued as the best route root# run show route table inet.0 inet.0: 11 ...
0
votes
1answer
28 views

how to change a BGP path in juniper?

How to change the selected BGP route? I show the route 43.242.33.39, there shows 3 GBP paths. but I can not ping the ip(43.242.33.39). and can not traceroute it. how can I do with this?
4
votes
1answer
32 views

Junos how to execute a lot of repetitive commands?

In my Juniper qfx Switch, I want to execute many commands such as bellow: set vlans vlan77 vlan-id 77 set vlans vlan77 l3-interface irb.77 set vlans vlan78 vlan-id 78 set vlans vlan78 l3-interface ...
1
vote
1answer
31 views

I limit the port INGRESS but get packet loss

I use the limit speed method to limit the Juniper Switch port EGRESS and INGRESS speed. but after I added the INGRESS filter to my port, there will loss packets on the switch every port. anybody ...
4
votes
2answers
334 views

With respect to Juniper Networks , what is the difference between 'Fabric Plane and 'Switch Fabric'?

I am struggling with the concept of 'Fabric Plane' and 'Switch Fabric'? I haven't found any clear cut difference between them? Why fabric planes are different in MX960 compared with MX240 and MX480. ...
2
votes
1answer
17 views

New line (\n) not working in JUNOS on EX3300

Hopefully this is a quick fix and someone has seen this. Every document that I have come across tells me that when I am entering a login message, in order to make a new line, I should be using "\n". ...
1
vote
1answer
100 views

BGP Juniper not reflecting to Cisco?

I am really new to working with Junipers and I am struggling a bit with Route Reflector configuration. I have 3 routers Cisco-Juniper-Juniper2 here is my config: Cisco: router bgp 100 neighbor ...
3
votes
1answer
42 views

Group VPN between vMX as a member and a cisco router as a Group Controller

I am trying to set up a Group VPN between a cisco GC/KS and 3 vMX router (14.1R1.10) and another cisco router as a member. I've managed to get the Group VPN working between the two cisco router, but I ...
4
votes
1answer
44 views

set cli complete-on-space Cisco equivalent

Does anyone know what would be the equivalent, if any, of the Juniper command 'set cli complete-on-space' for Cisco? I used to work with Juniper devices and I LOVED this feature, but now we are ...
2
votes
1answer
96 views

What is the difference between “set community” and “add community” in juniper?

I am trying to understand setting up policies on a juniper router. What is the difference between "add" and "set" community? set policy-options policy-statement MY_POLICY term MY_TERM then community ?...
4
votes
1answer
236 views

Juniper SRX 240 - Routing subsystem not running on secondary node

Does anyone know why rpd would not run on secondary node? Thanks
2
votes
1answer
70 views

Securing J-Web interface with user lockouts after multiple bad login attempts

I have a bit of an odd question that I can't seem to find much success in getting an answer via web searching. I'm wondering if there is a way to secure the J-Web interface with user lockouts after ...
3
votes
1answer
46 views

Find which VRF contains a route

I am trying to find a Juniper command that shows a list of VRF routing tables that contain a specific prefix / range. Does any one know if this is possible? Thanks.
1
vote
0answers
35 views

Can't login to Juniper SRX from web gui [closed]

I have a Cisco 2911 router and a Juniper SRX550. The Cisco 2911 is directly connected to the Juniper SRX550. I can ping both networks from either routers. When I connect to https://172.16.128.1 from ...
2
votes
1answer
31 views

JunOS iBGP and return paths odd behaviour

I've got a somewhat basic iBGP configuration with a routing instance "global" between two Juniper vSRX's - each Juniper vSRX has an uplink of its own from a different transit provider with a default ...
-1
votes
2answers
79 views

Can I scp a file to Juniper router's Console port?

When I try to scp a file to a router on its console port, it says: "lost connection" Is it not possible to share a file with the router on console port? If not, why?
4
votes
1answer
73 views

juniper advertising smaller subnets with a bigger static route in BGP

I have a /18 in RIB but I would like advertise smaller subnet in BGPfor specific reason to diff ISP etc. Is there a way to do it without creating a null route or static route. Is some way in policy ...
3
votes
1answer
375 views

Difference between junos-host zone and a security zone

As far as security zones are concerned, we apply policies to it to control the transit traffic. And we also apply host-inbound-traffic to a zone or interfaces. If we have both of the above ...
2
votes
1answer
23 views

How can I see where BGP is advertising a given prefix? (Junos)

I'm working in a complex BGP environment on Juniper MX480s. We have many peers in various routing instances advertising prefixes to us, and then we advertise a subset of those prefixes to a subset of ...
1
vote
1answer
56 views

Comcast business modem question

We have a Cisco 2900 router that we use for VPN, and it's connected to a Comcast business modem. The LAN ip is 10.1.10.2 I also have a Junipe SRX550 firewall that I want to use for VPN, and it's ...
5
votes
1answer
55 views

Disadvantages or risks of leaving the the family inet6 configuration under interface configuration in Junos applied

I have a corner-case where I need to leave the family inet6 configuration under IFL present while hosts in that network should not use IPv6. This means, that the logical interface of a router will ...
1
vote
2answers
41 views

Juniper EX use upstream gateway

On a Juniper EX series how can I set the L3 IP range, but specify a gateway that is upstream? VLAN - Subnet - Gateway 10 - 10.1.10.0/24 - 10.1.10.1 20 - 10.1.20.0/24 - 10.1.20.1 If I do the config ...
2
votes
2answers
70 views

Noobie network question: connect routers across floors

I have a Cisco router and a Juniper SRX550 sitting next to each other. The Cisco router is on two networks, and the SRX550 is on 3 networks. Since they're close, I could connect them directly? If I ...
4
votes
1answer
40 views

Source NAT on Juniper SRX300

I'm having issues setting up the Source NAT on my SRX300 firewall. The firewall is connected to an LC-panel through a fibre optic cable in port 0/6. I have set the public ip on that interface and have ...
3
votes
2answers
61 views

Connect Cisco 2900 to Juniper SRX550

I need to connect a Cisco 2900 router (172.16.0.0) to a Juniper SRX550 (172.16.128.1 & 172.16.192.1). As far as I know, Cisco 2900 have no VLANs, so it's on VLAN 1. The Juniper SRX550 have ...
6
votes
2answers
111 views

Issues with Juniper MX-series iBGP routes

I have a simple setup: 2x Juniper MX-Series routers each having one uplink to a transit provider iBGP session between both routers (point-to-point) For testing purposes I've disabled the uplink from ...
4
votes
1answer
83 views

What is the exact meaning of routes in Juniper tagged with @ and #

The routing table explains the meaning of these symbols as: @ = Routing Use Only, # = Forwarding Use Only + = Active Route, - = Last Active, * = Both However, I am looking for more detailed meaning ...
2
votes
1answer
162 views

DHCP relay on Juniper MX

Hi I got a problem with bootp relay on a juniper router(s). I got helpers bootp interface configured with: irb.10 broadcast server 10.20.1.10 server 10.20.1.11 theres several irb ...
1
vote
1answer
68 views

how do you see what traffic is being forwarded to a static route?

I have Juniper SRX I created this static route (in inet.0): 10.123.123.0/24 *[Static/5] 21:52:24 > to 192.123.123.100 via ge-0/0/2.0 How do I view what traffic is being ...
3
votes
1answer
152 views

Config BGP policy for limit ISP path in Juniper MX 480 Router

Now we have a source IP14.135.4.0/24, we are involved in 5 different ISP, such as A, B, C, D, E. Now we want to access 14.135.4.0/24 not through the path of ISP B and ISP D, but through the other ...
2
votes
1answer
118 views

How to check the Juniper Switch's port bandwidth?

I use the CoS method limited the EX3300's switch port bandwidth to 200m. But I have a question, how to check whether it works? Is there the Juniper Switch EX3300's switch port have a bandwidth ...
3
votes
1answer
48 views

Interfaces Shutdown after JunOS Firmware Upgrade

So I've got some Juniper EX4500's. They're configured as a Virtual Chassis using the SFP+ ports. Due to the distance between racks, I wasn't able to use the VCP ports. Anyway, I've run into an ...
1
vote
2answers
148 views

How can I set the Juniper EX3300 Switch's Interface traffic speed?

How can I set the Juniper EX3300 Switch's Interface traffic speed? Before asking this question I have attempted many methods, all fail. first of all, set the Interface traffic speed is not the ...
2
votes
1answer
199 views

Junos IPSEC Tunnel to Azure & TCP-MSS

I am configuring a Juniper SRX 300 Series to establish an IPSEC tunnel to Azure. The Azure Vnet range is 192.168.10.0/23 The local range is 10.49.236.0/24. The configuration: (relevant bits with ...
5
votes
1answer
172 views

JunOS iBGP session not establishing

I have a test environment set up with two Juniper vSRX instances and a L2 network trunked between them and can reach each other on the IP addresses I'm trying to peer them on. vSRX 1 has an external ...
1
vote
2answers
175 views

Can we have multiple AS number in the same router?

Is it possible to have multiple AS number in the same router? Example: Routing-Instance A for AS100 and Routing-Instance B for AS200 ? Please share me some example or configuration.
1
vote
2answers
107 views

How to connect high-availability routers to high-availability firewalls

I have two Juniper routers (a SRX340 and a SRX320), each with a leased line, on the same IP range. They are designed to be connected together on specific network ports so that the SRX320 takes over if ...
2
votes
1answer
148 views

Partially Faulty QSFP+ breakout port - possible config error?

Network Equipment: Juniper Ex4600, 40GbE QSFP+ -> 4x 10GbE SFP+ DAC cable, Mellanox ConnectX-2 Problem: One of the SFP+ physical link cannot be brought up (xe-0/0/25:0 Physical Link Down, xe-0/0/25:1,...