Questions tagged [juniper-junos]

A tag for questions involving Juniper Networks Operating System (Junos) software.

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1answer
235 views

Which regex flavor is used in the Junos CLI?

I'm trying to do some regex matching in the Junos CLI, like show configuration | match "fancy.pants(reg|ex)". I especially want to look for word boundaries and other character classes. I'm used to \b, ...
2
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1answer
2k views

What's the purpose of JUNOS' sfid process?

In the last few days, one Juniper EX-2200-48P has started complaining via syslog: Jun 21 12:50:03 ex2200-b sfid[717]: TASK_OS_MEMHIGH: Using 52118 KB of memory, 103 percent of available After a ...
4
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1answer
87 views

How does Junos distinguish that route is learned in Layer 3 or Layer 2 VPN environment?

As I understand from Understanding Junos OS Routing Tables document, then bgp.l3vpn.0/bgp.l3vpn-inet6.0 or bgp.l2vpn.0 tables contain routes learned from other PE routers in Layer 3 or Layer 2 VPN ...
3
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1answer
10k views

How to show the MAC table for interfaces on a Junos Virtual Chassis member?

I'm using this command to show the MAC address table on a Juniper EX4500 series Virtual Chassis with 2 members: show ethernet-switching table The results show only interfaces for the Virtual ...
3
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2answers
530 views

Junos complex regular expressions question

I saw this explanation in the JNCIS study guide book ch1 (community regex examples) and i'm a bit confused: ^65000:.{2,3}$ - AS number is 65000, community value is any 2 or 3 digit number ex. 65000:...
3
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1answer
699 views

Juniper SRX 240 Routing Configuration

I am working with a Juniper SRX 240 as an aggregation routing device, it connects a Desktop (Workstation) environment over an access switch port to several (4) server environments behind Cisco Layer 2 ...
2
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1answer
185 views

How do you schedule traffic that exits via a bridge-domain?

I've got a single MX router connected to two physical interfaces on an SRX chassis cluster - each interface being a member of a reth interface. In order to make this work, on the MX side I have the ...
1
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1answer
181 views

CanI prevent a secondary DHCP server on the LAN from taking over from SRX Juniper's DHCP?

I have admin access to a SRX550 Juniper, but I cannot get help from Juniper or joint their boards because the Juniper belongs to Century Link, not us. I have the following: # show system services ...
7
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2answers
1k views

Can Junos show a matching config statement in context, like IOS `| section`?

Hard to describe what I'm asking. For example, here's a section of my config, with the full hierarchy: interfaces { ge-0/1/9 { vlan-tagging; unit 100 { description "my ...
4
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2answers
880 views

Configure Juniper Router Advertisements

I am currently setting up IPv6 on my network ran by a SRX-240H2 as router. Besides others the router as an internal interface configured as follows: [edit interfaces ge-0/0/4 unit 802] clb@srx01-av# ...
2
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1answer
102 views

Juniper JunOS routing issue in v15.1.49

I have a Cisco Nexus that has a few vlans on it - total network size is 172.26.64.0/20 split into /24 vlans - each using the third octet as the vlan ID. It's IP is 172.26.x.254 on each vlan as the ...
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0answers
686 views

2x Juniper SRX300 RETH interface on multiple interfaces [closed]

We have two SRX300 boxes in a chassis cluster. I have configured the RETH0 interface for WAN communication and assigned 1 port on the first unit and 1 port at the second unit. I have setup reth1 ...
4
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1answer
695 views

EVPN/VXLAN RD & RT

I was reading through this example on Juniper's EVPN/VXLAN documentation and I can't understand why I need two different Route-Distinguishers and Route-Targets. The RD & RT in the VRF instance is ...
3
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1answer
1k views

Setting a loopback/management address through a layer 2 trunk

We have two EX4200 switches in the following configuration: Router (.1)=====static route=====(.2) EX_01========trunk========EX_02 I want to configure a loopback or management interface on EX_02. ...
6
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2answers
421 views

Juniper: WakeOnLan over 802.1x without using default VLAN

Case We have a working 802.1x configuration on all our access ports. I want to enable WakeOnLan, but have no idea, how to target computers with Magic Packet. Tests We tried to send Magic Packet ...
3
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1answer
957 views

EX3300: Voice VLAN stopped working after upgrade to 15.1R6.7

We have 50+ Juniper EX3300 switches with access points configured to work with dot1x and voice vlan. We also have a variety of Yealink T23G, T42G, T26G and T48G phones that worked perfectly in our ...
2
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1answer
2k views

Difference between request system zerorize and load factory-default in Junos?

What is the difference between these commands? Whenever I use load factory-default, I notice that my root authentication passoword and ip addresses (if not everything else too) are STILL operational. ...
1
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1answer
305 views

My two Juniper J2320 Routers can't ping each other

FINALLY GOT IT TO WORK I have two J2320s connected by an Ethernet cable. The cable is connected to both in their ge-0/0/1 unit 0 interfaces. One is 192.168.2.5/24 and the other is 192.168.2.13/24 ...
5
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1answer
416 views

Juniper EX4600: multicast not working in vlan default. [closed]

I have a Juniper EX4600 switch which I'm using for host connectivity (obviously). Now I need to set up a VRRP/CARP between two hosts that are in the same vlan, and it's the default one. Surprisingly, ...
2
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1answer
58 views

RVIs and routing out of firewall

I have managed to configure a number of EX3300 switches (using virtual chassis) with vlans and the appropriate layer-3 configurations for RVIs. I can get the traffic to flow internally on the ...
2
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1answer
604 views

Juniper SRX 1400: Policy to redirect users to custom URL

What I need I have SRX 1400 @ JUNOS 12.3X48-D40.5 Imagine having, among others, following zones: UNTRUSTED-CLIENTS, WORLD and INTRANET. I want to block all traffic from UNTRUSTED-CLIENTS to WORLD, ...
1
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1answer
517 views

SIP alg on juniper SRX100H2

I'm not sure how the SIP alg on juniper works, but I guess its reading traffic on port 5060 to read sip signaling. We have just changed to an other operator who dont use the standard sip port (5060) ...
1
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1answer
711 views

Juniper Switch - Enabling Ports?

I have a Juniper EX2200-C switch that I am trying to setup and running into issues with. Unfortunately the Juniper website is not much help. I've managed to setup the device's root login and enabled ...
4
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1answer
4k views

show mac address on aggregated interface - Junos

I am trying to audit which interfaces are plugged to which switchport on our EX3300 switches. The problem is that when using aggregated interface I see only one mac address. wadmin@SIN11-VCsw-48-11&...
2
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1answer
2k views

what command will show my zone address books?

# show security address-book displays the global address books. But I have no global address books I have zone address books. Is there no show command that displays this? I can see it in the GUI: I ...
1
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0answers
665 views

Interface is up, but wan interface ip not pinging?

I have Juniper ACX-2200 router , i have assigned an ip address to the vlan tagged to ge-0/1/2 interface , and interface status is up, but self wan interface ip not pinging , ip won't even show up in ...
1
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1answer
436 views

How do i clear icmp statistics (JUNOS)

I run a rapid ping and then run show system statistics icmp I want to run another ping test but how do I clear out the old stats? clear interfaces statistics all does not clear out the icmp stats
0
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1answer
2k views

How to configure L2TP Client on Juniper SRX?

I have an Juniper SRX 100, running JunOS 12.1X46-D66. I would like to use it to route all Internet traffic through an L2TP tunnel to an ISP called Andrews and Arnold, who offer this as a service. ...
1
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1answer
693 views

vSRX : several public addresses on loopback interface

I have an issue when I try to configure several ip addresses on the loopback interface on a vSRX cluster. Here is my setup (in gns3) : vSRX-1 and 2 are in cluster mode. VyOS-1 and 2 are BGP routers ...
1
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1answer
155 views

What's the proper way to route a subnet through an OSPF area?

To make the example as simple as possible. We have an OSPF area setup so that if one link fails or gets congested, traffic will reroute through the other. Is there a way to have traffic pass from ...
0
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1answer
567 views

Linux LACP (802.3ad) working for ingress traffic only?

We've setup LACP (802.3ad) on our Juniper switch and a Linux host, connected to the switch with 3x 1Gbps links. We are able to download from multiple sources at a rate of 3 Gbps, but when uploading ...
1
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3answers
3k views

Juniper EX how to clear route forwarding table?

After layer 3 routing a large IPv6 assignment on an EX Juniper switch, the route forwarding table filled up and some entries corrupted or became otherwise invalid. We want to clear the whole table. ...
3
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1answer
1k views

Juniper ARP table max limit

I'm running EX3300-48T - Junos-12.3R11.2. After binding multiple /24s on multiple vlans on the same switch, Started to notice that the newly and the old assigned IPs are not pinging on multiple ...
2
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1answer
709 views

MX80 Subscriber Management IP profile only active for stacked VLANs

I have configured subscriber management on an interface on my MX80 router. Both single and dual-stacked customers can be assigned (an) IP-address(es). For this I have created two dynamic VLAN ...
2
votes
1answer
2k views

How to connect two Juniper gns3 with fastethernet?

I need to connect two Juniper routers with fastethernet interface. When I am connected by em0, I can check the connection between them by ping. But when I tried to set fe-0/0/0 in two routers, I can't ...
3
votes
1answer
815 views

How to test an IP against a prefix list on JUNOS CLI

One can find routes matching an IP using show route 192.0.2.123. What is the equivalent way to find matching prefixes, if any, in a long prefix list? ... to determine quickly and conclusively whether ...
1
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1answer
306 views

Which one of juniper routers image gives me this option (GNS3)?

I need to create the same network with cisco and juniper routers. I find tutorial to cisco. When i clicked on configuration in cisco router i have a lot of options for example WICs, its emulated by ...
1
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1answer
467 views

How do I update a 2nd hand bought Juniper SRX240

I bought a used SRX240 on ebay to learn a bit about it (and use it as a home router). Upon starting it seems it has a very old firmware, so I wanted to update it. So I created an account on juniper....
2
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1answer
1k views

Why do some QSFP+ not allow breakouts? Shouldn't all MTP QSFP allow -> 40G QSFP+ to 4x10G SFP+?

I am trying to better understand how the channels in QSFP+ operate. I have recently run into issues with Juniper QFX-QSFP-40G-ESR4 and QFX-QSFP-40G-SR4 where they are not allowing me to channelize the ...
3
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3answers
632 views

Juniper Dynamic Subscriber Management Traffic Policing

I've managed to get QinQ subscriber management working. Now I want to shape / police both VLAN connections. As a test I have configured this: DYNINTF-STACKED-KANTOOR-TEST { interfaces { "$...
2
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2answers
100 views

Juniper EX uplink module for access downlinks

We have a Juniper EX-4200 (1Gbps downlinks) with the SFP+ uplink module. The switch is connected to our providers via 10x aggregated 1Gbps ports (ge-0/0/0 to ge-0/0/9). Can we connect a server to the ...
2
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1answer
846 views

How to get multiple uplinks on Juniper EX switch to work?

We have a Juniper EX4200. Ports 0, 2, 4 and 6 are connected to another Juniper switch. These ports are our network uplinks. All other ports are connected to our servers. We want traffic to use all 4 ...
3
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1answer
538 views

Juniper EX incoming packets VLAN tagged

I'm trying to configure a Juniper EX4200 switch. Usually packets are statically forwarded to me, but this time they are VLAN tagged. Here is my configuration : interfaces { ge-0/0/0 { ...
3
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1answer
285 views

Virtual Bridges do not seem to be carrying LLDP information

Network community, I am testing a Juniper virtual-SRX (D.70). When configured on a desktop the vSRX works wonderfully (fully functional/connected OSPF router), however when I plug it into the rest ...
4
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1answer
871 views

Segment routing with JUNOS MX routers [closed]

I'm trying to configure segment-routing with Juniper MX routers. but i can not find much documentation related with that. if anyone have configuration guide i ll be appreciate. thanks.
2
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1answer
293 views

Junos SRX OP-Script errors

I am having trouble troubleshooting this OP script. When I run the following script and include an IP address, I get the following error: {primary:node1} user@fwB> op tpol source-address x.x.x.x ...
1
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1answer
332 views

Juniper rpm configuration - http probe bad request

I am trying to configure a RPM probe to ping a web service using an IP address, using junos version 12.1x probe My-Probe { test My-Test probe-type http-get target url http://10....
3
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1answer
284 views

is it possible edit prefix list using netconf

Is it possible to edit the prefix list through netconf in juniper router. I am using new version of juniper router.
1
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1answer
4k views

Decrypt passwords in JunOS show configuration

I am trying to backup my configuration on a Juniper m120 OS version 10.1R1.8. I would prefer not to use the archival server configuration because a custom application will kick off backup and not the ...
0
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2answers
812 views

setting up aws vpn with srx110

I'm trying to setup an IPsec vpn to AWS from an SRX 110 and am having some trouble getting it to work. I've download the config file and my tunnels seem to be up, but I can't seem to ping anything in ...