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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ssh command not working on juniper router

I'm trying to use ssh command on my MX juniper router but i get the following-error -cli: unable to execute ssh: No such file or directory this is the command i'm using: ssh 10.27.1.2 source ...
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1answer
1k views

How to get Juniper SRX220 to respond to multiple IP Addresses

How can I get an SRX220 to respond to multiple ip addresses on same subnet, but with different gateways. e.g., Subnet: 1.1.1.40/30 (.41 gateway, .42 actual ip) Subnet: 1.1.1.44/30 (.45 gateway, .46 ...
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1answer
117 views

Does Juniper ScreenOS support IPCOMP?

Given an oldish Juniper Netscreen device running ScreenOS 6.2 (Juniper NS5GT-ADSL), would it support IPCOMP payload compression (RFC 2393) in IPSEC tunnels? If so, any reference on how to set it up?
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1answer
467 views

JunOS Regular Expressions for AS Path

I want to write a regex in Juniper MX960 router for BGP including 3 AS paths with first element is constant, second and third are wildcard. I found that we can put as numbers manually like this: ...
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2answers
2k views

Juniper SSG5 DHCP IP Pool is full. Unable to offer IP address to client

hope we have some Juniper guys around, I have configured a Juniper SSG5 as our main firewall/router the DHCP server set on interface bgroup1 to have a rang from 10.10.10.76 to 10.10.10.210 All ...
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1answer
6k views

SRX220: Cant ping between hosts in directly attached networks through SRX

I have such lab: SRX220H and 2 hosts. Host1 (IP-address 192.168.1.100/24) connected to SRX interface ge-0/0/1 (interface address 192.168.1.1/24); Host2 (IP-address 10.10.1.100/24) connected to SRX ...
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1answer
426 views

Juniper Firewall SRX210 questions

Total newbie to Juniper. Okay, I've been messing with the web interface on a SRX210 Firewall for a few hours now and looking like I need specific help now. So the overall architecture is that I have ...
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1answer
91 views

Junos Routes - Route Specificity vs Protocol

I am trying to load balance a router to send traffic over two uplinks (with equal capacity). I generated static routes for every /8 on the internet (for ipv4) and plugged it in. Unfortunately it does ...
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2answers
190 views

Juniper Router - Load Balancing

I have a single Juniper router which is connected to multiple external ASs. I am looking to load balancing for best way to automatically move traffic away from one link the others (without hardcoded ...
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1answer
532 views

How do I span my WAN subnet to my L3 switch using SonicOS L2 bridge mode? (Sonicwall and JunOS)

I have two sets of ESXi hosts, one set for management and one for tenants. Each ESXi host has 8 nics and four vSwitches. All vSwitches are trunked via aggregated interfaces to a pair of EX in VC mode. ...
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2answers
2k views

Juniper EX BGP with Default Routes

I'm new to BGP - so this is certainly a learning exercise. I'm moving away from PA space provided on 2 routed uplinks to having my own IP space and multi-homing my transit. To begin with, there will ...
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2answers
2k views

SNMP not working on Juniper ethernet switch

I need some help on configuring SNMP for Juniper EX4500 ethernet switch. I am performing this command: host1:~# snmpwalk -v 2c -c my_community_string 192.168.1.1 .1 Timeout: No Response from ...
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1answer
2k views

Junos: find out each interface's ip

Sorry if my explanation is confusing. I need to get all the ip addresses of a Juniper Switch and Router (different models). On Cisco IOS I can get that with show ip interface brief | exclude ...
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1answer
211 views

Redistribution of iBGP learned routes to all routers?

I am trying to accommodate for a link failure between LB1 (a Linux machine running Quagga) and either PAT1 or PAT2 (Juniper MX80 routers). The following diagram is a canonical version of my network ...
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784 views

juniper ssg320 intrazone configration issues Close - AGE OUT

We have one main office and another small office that holds only 5 people. We have recently setup OpenVPN on our main office and created a bridged vpn between our main office LAN and a windows 2003 ...
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3answers
955 views

Juniper OSPF subnet mismatch from Quagga router

I am trying to setup a OSPF area between a Juniper MX80 and a Quagga router. The Quagga router has OSPF configured and network 199.192.100.0/28 advertised in the hello packet. But the Juniper MX80 is ...
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1answer
2k views

DNS Server resolves external address,when vpn dns should resolve internal address

We have a special situation where Juniper Network Connect is used as VPN connection. When the VPN starts it creates the network adapter. When the vpn closes the network adapter disappears. Each time ...
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3answers
345 views

Having ssh access only, determine if the device is router or a switch (Cisco and Juniper)

There are some Cisco and Juniper devices on our network that I need to make a python script to determine what they are: switches or routers. I have ssh access, so I can show version and parse ...
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2answers
152 views

Is there a Juniper limitation on the number of SA in 'any to any' ACL in IKEv1

I've connected Juniper SRX5800 and another enodeB device (don't know the vendor) by an IPSec tunnel. It uses IKEv1 for negotiation of keys. there are 10 ACLs on the enodeB side and on Juniper SRX, I ...
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0answers
1k views

Does a Juniper SSG work well as an NTP server?

I have an old SSG-140 that I wanted to use as an NTP server for a number of devices - is this device able to act as a stable NTP time source? My Linux clients can't seem to stay synced to the device ...
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0answers
409 views

Allowing connections initiated from outside

I've got an old Juniper SSG5 running ScreenOS 5.4.0r6.0. Once a day, more or less, it'll start randomly dropping packets at a rate of ~5-10%. We currently solve this issue by simply rebooting the ...
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1answer
214 views

Firewall Deep Inspection Updates and Antivirus Subscription, worth it? [closed]

I realize that this is a subjective question, but I'm trying to get some experiences We have Juniper firewalls in our organization (SSG-320M, SSG-5, and some old NS-5GT). We have the option of a ...
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1answer
2k views

How to route all network traffic for vlan through a proxy server on SRX

I'm trying configure an SRX router to automatically forward all traffic through a proxy server i have in the USA. I have created a separate vlan and configured the proxy but not sure how i can route ...
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1answer
863 views

Juniper SRX220: How to access wan IP from lan?

I have setup Juniper SRX220 and i have a small problem. I can access the system from lan subnet (192.168.0.1) but not vie wan (external ip) address. Is there a way to access internal machines from ...
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1answer
1k views

Juniper SSG20 IP settings for email server

We have 5 usable external static IP addresses leased by our ISP: .49 to .53, where .49 is assigned to the Juniper SSG20 firewall and NATed for 172.16.10.0/24 .50 is assigned to a windows box for ...
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2answers
11k views

VLAN trunking between Juniper EX -> Cisco Catalyst -> and Cisco Router

I have the following scenario: EX2200 Switch whit ge-0/0/8 set as an access port on VLAN 80 ge-0/0/0 set as a trunk port connected to a catalyst switch and various vlans allowed to pass includin ...
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1answer
110 views

How can i disable ip binding in Juniper SSL VPN SA-2500?

At the moment it is set to allow Admins with specific ip addresses to log into the admin console. I'd like to allow everyone to open the admin console without checking the machine's ip. Anyone knows ...
3
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1answer
2k views

Juniper SSG 5 VPN

I have a host who set up our Juniper SSG 5 VPN with Firmware version-6.2.0r5.0 I've been trying to set up VPN on it using this guide: http://kb.juniper.net/InfoCenter/index?page=content&id=KB4094 ...
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1answer
433 views

enabling MPLS,RSVP and OSPF-TE

I am using Juniper J-series routers to emulate a small telco and VPN customer.I need to use OSPF so that the routing information can be propagated to all P and PE nodes (basically all core and edge ...
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1answer
119 views

juniper VPN disconnect when I use SCP

I am using Juniper in my company. I have a 64 bit Ubuntu 12.04 laptop. I can ssh to remote servers, and do everything well. My problem is : whenever I scp something to the remote server, Juniper ...
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1answer
1k views

Juniper SRX1400 VPN

I have been trying to set up a client VPN on a Juniper SRX1400 without much success. All documentation I found from Juniper and elsewhere does a lot of other (difficult and wonderful) things other ...
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1answer
554 views

Packetloss in Juniper SRX with gigether-options loopback enabled

I have run into an interesting problem with a Juniper SRX 240 box. The box is running BGP as a border router, and is announcing a /24. To ensure that the vlan with the network stayed "up" I set the ...
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1answer
692 views

VLAN with trunk to avoid broadcast storm in a network with redundant paths

I have 6 Juniper switches (EX - 2200) connected to each other as shown in the network topology. I have two PC's that I am using PC1 - (used for configuring the 6 switches via minicom) PC2 - to ...
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2answers
2k views

VLAN support on Juniper EX - 2200 switches

I have 6 Juniper switches (EX - 2200) connected to each other as shown in the network topology. ![enter image description here][1] I have two PC's that I am using PC1 - (used for configuring the 6 ...
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1answer
1k views

configuration transfer over scp on commit not working on Juniper EX-2200 switch

I am making a series of configuration changes on Junos EX- 2200 switch.I have this router connected to another PC via an ethernet cable.The IP address of the switch is 192.168.1.1.I am able to ping ...
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1answer
275 views

Login configuration script for Junos EX 2200 using minicom

I am connecting to Junos OS on Juniper EX-2200 switches using minicom as shown below minicom -C log_sw1 sw1 Now I have a series of commands that I need to execute on sw1.(example shown below) cli ...
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2answers
997 views

Cisco Sticky Mac vs Juniper Persistant-Mac

I’m trying to figure out if there is an inherent flaw in the way JUNOS handles sticky-mac addresses across their switch-ports versus how Cisco handles them. I’ll elaborate. Below, you can see that ...
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1answer
427 views

Multiple External IP Addresses, Two Routers & Amazon VPC

I'm out of my depth here as I'm a database developer trying to do network stuff and really need some help. We have a leased line with multiple external IP addresses (subnet mask 255.255.255.248). ...
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1answer
4k views

Configuring VLAN on Juniper EX2200 switches

I have a Juniper EX2200-24T switch.It is configured as an L2 switch (i.e the interfaces are configured in such way that they do not have an IP address.).I have manually connected the port ge-0/0/0 of ...
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1answer
906 views

Routing between SRX220 and existing network router

I've got a Juniper SRX220 that I'm trying to connect between our existing network and the new networks on the Juniper side. However, no matter what static route I try and set, traffic doesn't cross ...
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1answer
745 views

Juniper Network Connect - don't disconnect Internet [closed]

I'm using Juniper Network Connect to connect to a VPN. When I log in to the VPN it disconnects my other networks. I suspect this is a security feature, however I need to develop an application which ...
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2answers
240 views

How to restict telnet from Juniper firewall?

Can telnet everywhere from the appliance without any traffic / event logs. It seems to disregard the global policy we have set for blocking all traffic unless specifically permitted.
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2answers
953 views

Can Juniper SSG be used as DNS recursor?

As per title. e.g. 1. client asks example.com <--> Juniper_SSG_140 2. Juniper_SSG_140 <--> DNS root servers 3. <--> Specific DNS returned by root server 4. client ...
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1answer
214 views

What is the story with 64 reserved address limit on Juniper's DHCP server?

It's a very strange limitation, any way to increase it?
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2k views

Outbound traffic being blocked for MIP/VIPped servers (Juniper SSG5)

As we've been having some problems with sporadic packet loss, I've been preparing a replacement router (also an SSG5) for our current Juniper SSG5. I've setup the new SSG5 identically to the old one. ...
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1answer
1k views

Using Juniper EX3300 as a router [duplicate]

Possible Duplicate: Using the Juniper EX3300 Switch as a router? So I have a Juniper EX3300 Switch. One of its uplink ports (ge-0/1/0) is connected to my ISP's router. ISP router's port ...
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2answers
1k views

Juniper EX3300 routing issue

The routing on my Juniper EX3300 does not seem to be working. My ISP's gateway is at xx.xx.xx.xx. And I have the following in the configuration: routing-options { static { route 0.0.0.0/0 ...
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1answer
3k views

Using the Juniper EX3300 Switch as a router?

I have a Juniper EX3300 switch in a data center. And I have connected one of the uplink ports (ge-0/1/0) to my ISP's router. I want to configure it so that all the devices connected to ports in the ...
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0answers
377 views

Is using GIADDR when relaying DHCP requests beneficial?

I am setting up three Juniper EX3200 switches simply named 1,2, and 3. Switch 2 will have two VLANs, one being the internet uplink from the Firewall and one being the gateway for the Workstations. ...
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2answers
713 views

MX960 port mirroring only Tx or Rx side

On Cisco routers there is an option to do port mirroring only on Rx or Tx side, by using this command: monitor session session_number source interface interface-id [, | -] [both | rx | tx] ...