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Questions tagged [juniper]

Juniper Networks is a networking technology company headquartered in Sunnyvale, California. They design and manufacture core and edge routers, as well as switches and security devices, most of which run their custom operating system JunOS.

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Separate Azure S2S VPN tunnel per subnet with Juniper SRX

It looks like this question and variants of it are very common, but I have been unable to come up with an answer after a full day researching and testing. I appreciate any feedback! GOAL: In Azure, I have one VNET with multiple subnets (frontend,…
Matthew
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Juniper SRX refuses to add new ip addresses to ARP (unless)

I have a juniper SRX340 running as default gateway, I have a linux server (virtual machine actually) running debian 8. juniper ip: 192.168.1.1 Debian ip: 192.168.1.101 (eth0) I would like to add more ip addresses on my Debian box, so I create a new…
Sverre
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QSFP28 DAC cables causing packet loss and framing issues

So the systems I am using are MX960 MPC7e. When I use the 1meter 100G DAC I have zero errors + zero packet loss. When I use the 3meter 100G DAC cables I have packet loss & framing errors. I tried 3 DAC cables on 2 different sets of routers…all…
KrisGT
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How to debug tun0 issues with OpenConnect Juniper

I'm using OpenConnect in Debian testing to connect to a corporate Juniper VPN, this way: sudo openconnect --juniper -v I'm doing this from three physical instances of this OS and in all cases I'm passing authentication…
Antonio López
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How to tell Ansible to prompt user for passwd when SSH Key connection fails?

I work with a team of network engineers that are scared of linux, and I am trying to create a seamless user experience for my team. How do I create a condition that says: when key authentication fails, prompt users for username and passwd? This is…
Louie Louie
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How to set snmp trap threshold

I want to monitor some firewall devices by snmp.Now, I can get cpu info of device by snmp4j. But I have no idea how to use snmp trap to get specified warning and error messages from device. How to set CPU threshold so that a trap message will be…
Wendy
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LACP - Load Balancing Network 2Gbit Ubuntu

I have configured my server as bonding interface to achieve 2Gbit network speed but it seems ubuntu can not go over than 1gbit and the outgoing traffic from server is not balanced over 2 interfaces. The switch behind of this server is a Juniper…
Bon Onlines
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How to connect a Juniper EX4500 to netapp X1107A

What is the best and not expensive way to connect a Juniper EX4500 to a X1107A Chelsio PCI Netapp card? Will these do (10GBASE-SR) for both end? and then connect with fiber cable? How important is it to get original ones from Juniper and not…
poopa
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Juniper SRX routing based on network

So, a Juniper SRX 220 in a shared use building. Two networks, 192.168.30.0/24 (The shared use) and 192.168.31.0/24 (the private network). We had once cable modem, and it currently allows only the 31.0 network across a VPN to corporate. Now they…
Telerias
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Juniper WLA532 with SRX220H2

I've ordered a Juniper SRX220H2 to upgrade our firewall and was thinking about upgrading the office Wifi APs at the same time. Juniper manuals mention that the SRX supports > 4 WLA APs and WLCs, but it doesn't say clearly whether or not you can get…
eof
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Packet is not entering IPSEC tunnel Juniper SRX

IPSec tunnel to Amazon cloud doesn't work. My local subnet is 192.168.42.0/24. I'm trying to access Amazon cloud private subnet 172.0.3.0/24. My firewall model is Juniper SRX550. Tunnel is up (I can see IPSEC and IKE security associations. And I can…
Roman_T
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Is possible monitor the VPN's bandwidth with Check_MK? How?

I would like monitor the bandwidth in the VPN of Juniper SSG5 with Check_MK. Is possible? How? For the moment I am monitoring the status with the check automatic (check_mk-juniper_screenos_vpn). However I want monitor the bandwidth. I hope that…
xerez
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Juniper bytes-from-server meaning

I'm looking through some Juniper firewall logs that look like this. There are servers and user machines on the network. Most of the logs refer to source and destination, which makes sense to me, but some values in the log such as "bytes-from-server"…
user577829
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Juniper SRX IPSec tunnel to Microsoft Azure Dropping

I'm a bit stumped and was hoping to find some guidance here. I've configured an IPSec tunnel to Microsoft Azure from my Juniper SRX240 (12.1X44-D45.2). The tunnel works fine but phase 2 drops when there is no traffic running across the tunnel…
Rudidl
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Juniper SSG20 Additional subnet on adsl interface

I've configured a Juniper SSG20 to have some clients natted to the internet with the main ip address (X.X.27.90/30) of my IPoA ADSL connection but i have also some servers i wish to connect with a public ip address (coming from another subnet…
Francesco
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