How are Organisation Local Scope addresses different from Local Scope addresses?
Hi. I know that administratively scoped multicast addresses are similar in function to the RFC 1918 private unicast addresses. RFC 2365 describes 2 types of administratively scoped multicast addresses:...
View ArticleSource Address of IGMP Proxy messages
Hi all. A switch acting as an IGMP proxy for hosts H1 and H2 generates IGMP Query messages on behalf of the Querier to the hosts and IGMP Report message on behalf of the hosts to the Querier. What is...
View ArticleDemystifying multipath BGP
Hey Guys, I was looking through the multipath example documentation and I'm getting a little stuck. From the following topic and router configuration...
View Articlewhat are supposed to be contained in ::vxlan.inet.0 ?
Anyone can help me to understand what ::vxlan.inet.0 does, when it is used? thanks !!
View ArticleSSH arriving on ephemeral ports on MX80, above 10000 -- ssh block filters not...
Anyone else seeing log messages of late where SSH attempts are being received on NON ssh ports somehow? Only a full port block to the router's interfaces are effective: rtredge-[98208]: Failed...
View ArticleMX240 Interface firewall filter
Hi forum,Could you help, I have the following filter applied to interfaces which does not work when trying to match server host ip addresses end points 172.16.10.130/26 and 172.16.10.50/26, hosts...
View ArticleBackup RE0's issue
Hi, My backup RE(RE-S-2X00x6) always keeps at IP mode, even we replaced new RE (only RE, without SCB2).It's still under IP mode. And we show system switchover to get below information. > show...
View ArticleFiltering NAT traffic
Hi all,I would like to understand the difference between NATing traffic in dynamic-profile sending traffic to routing-instance and make the global rule in the forwarding-options hierarchy. Example...
View ArticleCGNAT PBA with paired address-pooling on ams0 with amount members more 2 members
I have MS-MPC and configure NAT on ams0 interface (with 2 members): > show interfaces load-balancing ams0 detail Load-balancing interfaces detail Interface : ams0 State : Up Last change : 13:17:16...
View Articleospf and bgp configuration issue
Hey folks,I have an ospf and bgp configuration issue, below I will describe a bit the topology to give more context:my topology:ISP <-> BB - |<-> DR01 |<-> DRnn...
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BGP Neighbors Summary Issue
I've come across this issue while configuring bgp in my practice lab.I've found that when I issue a command "show bgp summary", neighbors that I've configured whether internal or external, some...
View ArticleSRX traffic priority for video conferencing
Hello, We are having issues with our Slack calls. They are very choppy and its almost impossible to have a meeting with 5 people. I think I need to set up QoS to prioritize the voice traffic. I have...
View ArticleQuestion on BGP Flowspec
Hi all. This question is regarding section 5.1 (The Order of Traffic Filtering Rules) of BGP Flowspec RFC 7674. This is my summary of section 5.1. Please correct me if I am wrong anywhere.When a...
View ArticleLACP over GRE tunnel
Hello, Is it possible to configure LACP to work over a gre tunnel? Regards,Alex
View ArticleMX80 XFP 10G BIDI Support
Hello there,Hope am not cross posting;Am wondering if MX80 supports 10GE BIDI XFP.__Thanks!
View ArticleIRB on a logical-system MX960
Hello, I am having some trouble setting up the vlan part of a BGP setup on a MX960 in a logical-systems. Overview of what I'm trying to do. I am passing an external BGP connection through a EX switch...
View ArticleMX80/MX104 Ipv4/ipv6 routing table limit FIB/RIB?
Hello,Does anyone know what is the MX80/MX104 Ipv4/ipv6 routing table limit FIB/RIB?I see this root@mx80# set routing-options maximum-prefixes limit?Possible completions:<limit> Maximum number of...
View ArticleMX local interface route
Hello, Experiencing a problem with traffic routing in the follow setup. The goal is to make SRX available to reach BGP peer (172.1.10.1) BGP peer 172.1.10.1/29 -> ge-1/1/0.124 172.1.10.2/29 MX...
View ArticleMX240 Maximum BGP Sessions
Hello everyone!Did someone knows how many maximum of bgp peers on MX240?We had RE-S-1800x4 with 32G DRAM and JunOS 16.2R2.8
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Local-preference on route-targets in VRF
Hi We have two ISP's who sends us default route on BGP. I want to get both default routes to our PE routers in a VRF and I want to be able to set the local preference in each PE to decide which ISP...
View ArticleVPN Stage 2 Not Working
good afternoon! Don't be fiddly with the girl, I'm just starting. I inherited the old srx 210 equipment by inheritance. A vpn tunnel to one office was built on it. At some point it stopped working, I...
View ArticleEX-3X00 instance-import
Hello everyone,I finally managed to find a solution to my problems with ntp/ftp and etc from master inet via routing-instance.Vlan-data is our ISP provider which provides routers between sites, i got...
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MX to SRX cluster interconnect for multiple VLANs
This should be a very simple question to answer, but somehow I cannot figure it out or find a working example. Let's say I want to configure two MX routers and an SRX cluster as shown in the picture...
View ArticleHow does a PIM-SSM LHR select the multicast source ?
Hello Experts. An IGMP v3 Report message may not be specific about a single source for a requested multicast stream. It may have an INCLUDE source list that contains a list of sources from which any...
View ArticleLag interface question on MX104
I am reaching out to support for an answer but thought one of you or your compadres might know. Does the MX104 allow me to LAG 10G interfaces between the on-board and the 10G card in the slot? Given...
View ArticleExisting session - routing change
HelloCan someone please clarify what is the behaviour in SRX if a routing change occurs resulting in in egress interface change. My thinking is nothing happens (existing session still used), and the...
View ArticleHow to provide security in an EVPN/ VXLAN environment when using a...
I am mainly interested to know two things: How is security enforced between devices that are part of the same VNI? How is security enforced between devices that are part of different VNI’s?
View ArticleAny one exprince IP CLOS Fabric with Spine Juniper but Leaf other non-juniper?
Hi All, Just want to know if anyone here has experience implementation IP CLOS Fabric when Spine is "Juniper" but Leaf is "Cisco or Arista". Is it compatible VXLAN between of them because Juniper...
View ArticleWhich method is better for E-TREE in JUniper?
Hi all, Any one here can give some feedback regarding E-TREE implementation in network for production based on your experience in real word. I means which is better VPLS vs EVPN. Below is the url:...
View ArticleIpv6 interface connectivity issue
Hi all, I am currently doing the junos genius JNCIA certification track and have come across an issue i cannot solve. In the Routing Fundamentals lab step 2.1 it instructs to configure the ipv6...
View ArticleImport received/non-active routes to routing instance
Hi Let's say I have 2 transits from different ISPs with 2 full bgp v4 tables. One of these tables I would like to import into a routing instance before any bestpath selection. Like dumping the received...
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Static Routing with ISP
I have a bigger subnet of /26 i.e. 192.168.1.0/26.Gateway Ip is assigned on the router.i have a firewall connected to the gateway on 192.168.1.2/26 Ip address.I have another router (ROUTER-B) for a...
View ArticleFlowspec rules before or after sampling / packet flow.
Hi Few questions. Hope someone can help.Let's say I have an incoming DDOS attack and I with bgp flowspec create a rule to rate-limit all udp from any to 1.0.0.1.Where in the packet flow would this...
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OSPF import Policy not working
i am in the process of preparing my JNCIA certification so i decided to create few labs to practice all topics.in this lab im trying to test a route policy that should not import an external OSPF...
View ArticleAny NMS that can display info of subsriber (BNG) and CGNAT session?
Hi all, Anyone here know the brand NMS that can display info for subsriber on BNG and also the CGNAT info such as session summary n etc. If any one here know whether PRTG or Solarwind or other brand...
View ArticleMX960 FIB/RIB Capacity
Does anyone know the max FIB/RIB for MX960?MX960-PREMIUM3-AC2x RE-S-X6-64G-BB3x SCBE3-MX-BB1x MPC10E-10C Can’t seem to find an official Juniper doc anywhere.
View ArticleJuniper to Cisco serial ports cabling
I am trying to connect a Juniper Dual Port PIM JX-2Serial-S card installed in a Juniper J2320 route to a Cisco dual serial port card installed in a Cisco 1821 router. I have connected the Cisco to...
View Articledifferent autonomous system number for each routing instance
Can i use different autonomous system number for each routing instance on a device ?I want to run multiple bgp instances on a QFX devices in ip fabric devices among Spine/Leaf.I want to achieve...
View ArticleHelp How configuration Trunk switch Cisco Multivlans and Router SRX300
good, I have the following panorama. 3 AccessPoints which each configure 3 SSID (Private Network / Guests / Domotica) Vlans 1,10, 20 respectively, the APs reach 1 Cisco 3750x switch with 3 ports, and...
View Article[MX480] apply three-color-policer/shaping to ae interface (19.3R2.9)
Hello, I come here because I can't make a three-color-policer works on an aggregate interface... The ae interface is an LACP of 2x40G interfacesHere is our configuration on this interface :# show...
View ArticleRPM probes
Hi, what is the cisco ip-sla udp-jitter option in the junos rpm probes? Basically, what I am looking for is to find out the reason for LDP and OSPF sessions which are dropping frequently. So I want to...
View Articlebasic ipv6 setup srx320
Hi, I would like to setup Native Ipv6 with srx320.I've a ipv6 range with next hop ISP: 2d0d:200:4356::1/48 I can ping and tracert fra the srx320 to google dns ipv6 server: 2001:4860:4860::8888.I made a...
View ArticleLine rate capacity dependency on SCB
If I have 3 CB slots available on my MX device and I install all 3 of them how will that affect the rate capacity on line card installed. Do I really need 3 SCBs in place?
View ArticleSRX-550 multi-site VPLS issue
The issue I am having is the CE device will stop communicating within the VLAN unless the cable is replugged. I can do this elevated by manually bringing the port down and up or physically handling...
View ArticleMultiple eBGP setup on Single Juniper SRX
We have a standard setup where we run BGP with ISP to learn default route and LAN device is directly connected to Juniper SRX with /29. We run /31 with ISP. A requirement has come through where...
View Article[MX] How to bind a VPLS to MPLS virtual-router
Hello there, I'm having Juniper MX204 and the goal is to separate existing running IP routing and MPLS domain. So, I created new virtual-router then configured MPLS under routing-instance. Since MPLS...
View ArticleSet a specific precedence value to a list of Prefixes associated to a...
Hi all, I would have liked to know please how such configuration could be performed on PTX running Junos:For a given as-path-group, i want to apply a specific precedence value to the prefixes...
View Articleunicast Reverse Path Forwarding on Juniper
HelloDo unicast Reverse Path Forwarding on juniper takes place at ASIC level or is Software mecanism ?Thank you
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Default routes
Hello guys ! Im trying to config 3 AS BGP with OSPF, but I have no idea how to config the Default routes in the ASBR Routers. i want to ping from VMX1 ( Lo0: 10.100.100.1) to the destination VMX6 (...
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