Questions tagged [aws]

Use this tag for any questions related to Amazon Web Services (as long as those questions are in scope of SE.NetworkEngineering)

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AWS ec2 suddenly has no internet access [closed]

I have an AWS ec2 set up for a web server. The server is running Ubuntu 18.04 and Nginx. It suddenly went out of internet access after my freedom domain registration expired. I doubt it is related to ...
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Inherent flaw in stateless firewalls?

I am but a lowly (software) developer dabbling with setting up a network in AWS and am having trouble understanding the fundamentals of stateless firewalls, or Network ACLs as they're also referred to ...
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Juniper SRX Cluster and Switching with AWS Direct Connect

We have a setup of two SRXs (345) in cluster mode that connect to AWS Direct Connect, each SRX connects to one AWS Connection on a local interface. The SRX also functions as a switch for two Kemp Load ...
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Cisco SD-WAN Cloud OnRamp Configuration

I'm configuring a user per the instructions https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/cloudonramp/ios-xe-17/cloud-onramp-book-xe/cloud-onramp-multi-cloud.html#...
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Can I assign one of my publicly available IP address to my AWS instance? [closed]

I would like to be able to use one of my publicly accessible ip addresses directly with my aws cloud instance. Is there a way I can assign or transfer one of my ip address to aws? My ARIN registry ...
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How to redistribute BGP routes learned from AWS in one VR into another BGP running in another VR in Palo Alto firewall?

I have about 1000+ prefixes I am learning from AWS on Palo Alto through a BGP. This is on the secondary VR. Main VR is where my core routing is situated along with another BGP instance pointing to ...
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Unable to get NetFlow flow in Cisco CSR1000v on AWS

I'm trying to use NetFlow Traffic Analyzer of SolarWinds or any NetFlow Monitor in my Cisco CSR1000v routers which are deployed on AWS. I am unable to see any NetFlow flows in the NetFlow Traffic ...
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AWS connectivity UDP works but TCP times out

I have some issues here I have built an L2l VPN from my location to AWS London, I can see that the tunnel is up but when I attempt to connect our local domain controller here in our office to AWS ...
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L2L ACL issue with Cisco ASA to AWS Cloud

Need help seeing what I am not seeing at the moment. I have built a l2l to the AWS cloud I run a packet trace outbound and that passes but when I run packet tracer outbound in I keep getting denied ...
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Does CSR1000v on AWS support IPv6?

I'm trying to implement Segment Routing IPv6 (SRv6) in Cisco CSR1000v on AWS. I'm having issues with IPv6 which gave the impression that IPv6 data plane does not work. Similarly, I configured a ...
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How can AWS restrict access by private IP?

The official AWS docs state: If you are connecting through an ISP or from behind your firewall without a static IP address, you need to find out the range of IP addresses used by client ...
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Unable to ping Google-AWS Fortigate firewall-SOLVED

Followed this guide: https://cookbook.fortinet.com/create-routing-table-associate-subnets/ I have EC2 windows instance, also have EC2 FortiGate-FortiGate VM64-AWSONDEMAND . Fortigate has 2 NIC: 192....
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AWS direct connect BGP issue

This is out current setup and everything working great!!! here, now i want backup link for AWS so i have request for one more secondary link and terminated on Cisco ASA on Port-channel1.8 interface. ...
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AWS direct connect with Cisco ASA redendency

We have following scenario currently and BLUE link is active and running, now i am going to get second link for redendency which is right side of diagram. As you can see currently i have VLAN 9 (...
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Amazon AWS VPN Bidirectional Device Access

After setting up an Amazon VPN connection and configuring my gateway using the downloaded configuration, I am able to directly ssh to the private IP of an EC2 instance in my VPC. However, both the EC2 ...
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AWS private NAT

Here is the scenario I have two private subnets in two separate VPCs. On ranges: 10.0.0.0/16 10.1.0.0/16 The 10.1 subnet is connected to a VPN gateway to a customer's VPN that all works fine. The ...
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1 vote
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F5 on AWS BGP configuration

I have added BGP to routing domain 0 on the BIG IP GUI using the AWS cloud BIG IP. however i cannot find out where to add my routing peers. imish does not work tmsh does not work zebos does not work ...
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AWS VPC and Cisco ASA

I am trying to setup a VPN connection using AWS VPC. I have generated the VPN configuration files and have sent to the client. However the client is asking for the Blue highlighted info in the ...
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3 votes
3 answers
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How is it possible for AWS to offer the same private network address to different customers?

I've been studying subnetting and of course there's plenty I'm confused about. One issue is as follows: my company uses AWS. For our VPC let's say we have a private network address of 10.2.0.0 /16 ...
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3 votes
1 answer
2k views

Cisco ipsec tunnel with nat to aws customer gateway

I'm trying to configure an IPSec tunnel between a Cisco router (ISR) and AWS (Customer Gateway). The connection to the ISP here is a PPPoE connection with a static private IP (e.g. 10.100.1.1) which ...
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PFSense on AWS with ASG

Have any of you had any experience using PFSense and Auto Scaling in AWS? Does PFSense have support for a user-data field? [1] Is there a way of running start-up custom scripts inside PFSense? ...
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