Recently Active Questions
16,963 questions
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IKEv2 Issues between Meraki and OPNSense
I have a meraki VPN mesh which consists of 3 meraki firewalls and 1 OPNSense firewall. There are 3 IKEv2 IPsec connections setup on the OPNSense firewall, one for each meraki. They're all configured ...
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3
answers
421
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MPLS route-target export
"Route-target export" is used to export routes form VRF to mBGP - i need to know the rules which tells which routes will be exported.
For example : if VRF-RED have 10 Routes which include static ...
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2
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695
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Problem with Configuring Selective DNAT for HTTP Traffic on Fortigate Firewall
I'm currently in the process of setting up a new Fortigate Firewall and have run into an issue while configuring DNAT. From what I understand, this is done through Virtual IPs in Fortigate. My goal is ...
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6
votes
2
answers
1k
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SonicWall TZ210 PPPoE on WAN interface, need transparent bridging to DMZ
I've got a SonicWall TZ210 which connects to the WAN via PPPoE on the X1 interface. I've got a /29 subnet routed into the box, and everything is running fine.
Now, I need to route one of the WAN IP ...
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Can ARP cache expiry can make a device lose 100% of its traffic for 1-2 minutes if its all UDP? [closed]
Let’s say the router sends an ARP request, but shortly after, the device changes its IP address. The router will have an outdated ARP cache for a certain period (60 seconds on Linux, or 2 minutes on ...
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Why does my PC cannot connect to my network over switch? [closed]
I have a modem/router provided by my ISP, to which I connect a home type switch. To this switch, I connect my VOIP phone (which connects successfully to the network), a NAS (again, connects ...
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1
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39
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Data link layer and transport layer differences/relationships
Hi I am a network engineering beginner learning about the TCP/IP stack in the context of using web services on an embedded system (processor connected to LTE cellular module).
I am struggling to ...
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How to Handle TLS Certificates for Offline Systems with Unknown IP Address? [closed]
I’m a Software Engineer who’s recently been pushed into a Network Engineering role for my current project, and I’d like some advice on how I could have approached a particular issue more effectively.
...
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1
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498
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Troubleshooting ipsec ikev2 site to site vpn
I assume, for peer IP we use, is the wan interface of the Cisco ASA and not the gateway of the ISP correct? Also, all routes should go to the same IP of the wan interface correct?
So we have two Cisco ...
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Error accessing Cisco ASA using ASDM
I encounter the error message in the picture when attempting to access a Cisco ASA using ASDM in a test environment.
SHOW RUN
=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2021.07.03 11:01:46 =~=~=~=~=~=~=~=~=~=~...
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318
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How to get Adtran TA5000 23 firmware information with an SNMP request?
I'm looking for any SNMP request that I could use through a Linux terminal to get the firmware information of all our ADTRAN DSLAMs that we currently have in the field(there are close to 18,000).
I ...
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5
answers
3k
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PAT and Static NAT not working together?
The HQ network is using PAT to gain access to the internet, the internal webserver needs to be accessed from the internet using static NAT.
Configs:
S_HQ
!
interface FastEthernet0/1
switchport ...
CommunityBot
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votes
1
answer
184
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BGP Timers - behavior when Graceful Restart is longer than Holdtime
I am trying to determine exactly why GR timers are recommended to be less than HOLDTIME timers Per RFC4724:
A suggested default for the Restart Time is a value less than or
equal to the HOLDTIME ...
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5
votes
1
answer
206
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N5K-5672 CoPP issue
I have a N5K-5672UP with enterprise license and I execute these commands to protect my control plane :
control-plane
service-policy input copp-system-policy-default
There is 2 issues:
When I execute ...
CommunityBot
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1
answer
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Connect-Info(77) from Fortigate to Windows NPS
I have a FortiGate and I can connect it to Windows NPS radius, and the simple user test works (under User&Auth>>Radius Servers ...).
I then proceed to setup admin logins to the FortiGate, ...
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