Godspeed to the engineers dealing with the outages today Networking |
- Godspeed to the engineers dealing with the outages today
- Recommendations for « practical » study resources that’d help in a Managed Services role
- Spoke-to-spoke IP multicast over DMVPN?
- Debian IPv6 routes not readded after boot
- Private BGP over Internet
- Is CCIE still worth it.
- Gigamon 2404 Link Problem
- Did win 10 1903 update kill my router or switch?
- Combine multiple networks, with same ip addresses
- DDNS + ASA Outside
| Godspeed to the engineers dealing with the outages today Posted: 02 Jun 2019 12:56 PM PDT Take a breath, investigate, and deal with it. God speed. [link] [comments]  |
| Recommendations for « practical » study resources that’d help in a Managed Services role Posted: 02 Jun 2019 11:32 AM PDT Hi, Day to day I face issues where something doesn't work in large, sparsely documented environment, and I've only limited information / piece of the puzzle to work with. Beyond the usual cdp/sh Mac add add/arp and the simple commands like that, I tend to wonder what « a pro would do then ». Simply, are there any good materials that could help with daily practical troubleshooting in DC lan? I find most stuff out there focuses on new concepts introduction and then moves on to the next. Cheers [link] [comments]  |
| Spoke-to-spoke IP multicast over DMVPN? Posted: 02 Jun 2019 04:48 AM PDT Are there any options to transfer multicast traffic over a spoke-to-spoke connection (especially in a DMVPN network) and if there are, what kind of? I couldnt find any reliable answers online. Thats why i am asking here. Thanks in advance and have a nice day! [link] [comments]  |
| Debian IPv6 routes not readded after boot Posted: 02 Jun 2019 01:24 PM PDT So I just set up a new VPS and I got IPv6 connectivity to work. The problem however, is that these route commands don't survive a reboot. I tried to add the following lines to my Any help would be greatly appreciated! [link] [comments]  |
| Posted: 02 Jun 2019 05:01 AM PDT Hi, Is it possible to establish BGP over Internet with private AS and then exchange private subnets? I'm thinking of couple VPS with public IP addresses and couple of private interfaces each running Quagga and BGP. I know those routes won't be routable over Internet without any tunnelling but will the neighbourship form? Is there anything stopping it? I would increase TTL with ebgp multihop command. [link] [comments]  |
| Posted: 02 Jun 2019 12:49 AM PDT With network programmability,automation, and cloud services becoming so hot, is it a smarter move to invest ones time into learning python,aws,azure,etc as opposed to spending all of that time studying for the CCIE? [link] [comments]  |
| Posted: 02 Jun 2019 02:55 AM PDT Any thoughts on this? I'm stumped. I have a GigaVUE-2404 with 1 gig copper SFP adapters that I'm experimenting with to replace our VSSMonitoring 12x4 taps. I've configured G1 as a tool port and ports 1 & 2 as network ports; more specifically, as a port-pair that forwards to G1. G1 seems to come up just fine (has link), but ports 1 and 2 absolutely refuse to establish link. Link Status is marked as zero. Since these are copper network ports rather than fiber tool ports, it also seems to be impossible to tell the Gigamon to statically set the ports as active. Things I've done: * Verified that both "ends" of the wire that the port pair are hooked up to have link Any ideas? Below I've pasted some relevant config details: GigaVUE>show connect *************************************************************************************** * Ports Connectivity * *************************************************************************************** Network Port FID FID Tool Port =================================== ===== ===== =================================== rigel-eth3 ( 3) Tool8 4 Tool9 ( 5) Tool10 ( 6) Fiber-In1 7 Fiber-In2 8 9 10 11 Tool1 12 Tool2 ( 13) Tool3 14 Tool4 15 16 ( g1 ) Tool_Public Tool_Internal ( g2) g3 g4 Public1 (- 1 ) <==== || external-tap Public2 ( 2 ) <==== *************************************************************************************** * Flow Mapping * *************************************************************************************** Map Name:ExternalTap Map Type: (st) Public1 ( 1 ) -----> ===>>> (g1 ) Tool_Public Public2 ( 2 ) -----> -- --------------------------- -- ---------------- GigaVUE>show port-params 1 Parameter Port: 1 ------------------- --------- Admin: 1 Medium: electrical Link Status: 0 Auto Negotiation: 1 Link Speed: 1000 Duplex: full TX Pause: 0 RX Pause: 0 MTU: 9600 Xcvr RX Pwr(dBm): n/a Xcvr Type: SFP CU Bypass State: n/a Force Link Up: n/a Cable Length(m): n/a GigaVUE>show port-params 2 Parameter Port: 2 ------------------- --------- Admin: 1 Medium: electrical Link Status: 0 Auto Negotiation: 1 Link Speed: 1000 Duplex: full TX Pause: 0 RX Pause: 0 MTU: 9600 Xcvr RX Pwr(dBm): n/a Xcvr Type: SFP CU Bypass State: n/a Force Link Up: n/a Cable Length(m): n/a GigaVUE>show po GigaVUE>show port-params g1 Parameter Port: g1 ------------------- --------- Admin: 1 Medium: electrical Link Status: 1 Auto Negotiation: 1 Link Speed: 1000 Duplex: full TX Pause: 0 RX Pause: 0 MTU: 9600 Xcvr RX Pwr(dBm): n/a Xcvr Type: SFP CU Bypass State: n/a Force Link Up: n/a Cable Length(m): n/a [link] [comments]  |
| Did win 10 1903 update kill my router or switch? Posted: 02 Jun 2019 02:52 PM PDT Updated the only 3 windows machines on my small network to 1903 a week ago, then started having spotty internet. I have a Netgear wndr3700 router plugged in to a Netgear prosafe 24 port gig switch jgs524 that had been working perfectly for months prior. Now no internet on wired clients only. I switch out the router with an old Linksys wrt54g and wired and wireless clients work fine until I plug in the switch, which kills the internet connection. I swap the wndr3700 back in and it won't work even without connecting the switch, and now no wireless either. I'm not a network guy, just have more shit to plug in than I have sockets on the router, and was given the switch, so where do I go from here? [link] [comments]  |
| Combine multiple networks, with same ip addresses Posted: 02 Jun 2019 01:09 AM PDT My aim is to connect 3 networks to a wireless router so I don't have to keep swapping connection depending on the network I want to use at that time. The 3 Separate networks that must not talk to each other, and with network 2+3 I can see this being an issue. Network 1 - File server + internet connection, few pcs. Network 2+3 - both have the same network ips. So they both have 10.0.1.10, 10.0.1.11 and so on. This cannot be changed, which is why they are both on separate networks. We know these networks simply as 2+3. So would it be possible to connect to 2.0.1.10 and it reforward to network 2 but connect to 10.0.1.10 similar to port forwarding. Is it possible to use a combination of vlans or some ip forwarding? What kind of equipment would I require if this is even possible? Thank you for any help you network gurus can provide [link] [comments]  |
| Posted: 01 Jun 2019 07:11 PM PDT [Edit/Update] Well, I had another thought. I wiped both the switch and ASA, started from scratch. I can now ping 8.8.8.8 from the switch. I'm still operating from a google puck... going to try and cut over to the modem and see if it'll work. Got something weird AF. If I remove either of the default-networks, I can't ping 8.8.8.8..... Switch: ip routing ! ip dhcp pool VLAN10 network 172.20.10.0 255.255.255.0
default router 172.20.10.254 ! ip dhcp pool VLAN20 network 172.20.20.0 255.255.255.0
default router 172.20.20.254 ! ip dhcp pool VLAN30 network 172.20.30.0 255.255.255.0
default router 172.20.30.254 ! interface GigabitEthernet1/0/52 no switchport ip address 192.168.120.2 255.255.255.252 ! router ospf 1 router-id 192.168.120.2 log-adjacency-changes detail passive-interface default no passive-interface GigabitEthernet1/0/52 network 172.20.10.0 0.0.0.255 area 0 network 172.20.20.0 0.0.0.255 area 0 network 172.20.30.0 0.0.0.255 area 0 network 172.20.40.0 0.0.0.255 area 0 !
ip default-gateway 192.168.120.3 ip http server ip http secure-server ! ip default-network 192.168.120.1 ip default-network 192.168.120.0 ASA: interface GigabitEthernet0/0 nameif outside security-level 0 ddns update ddns-2 ip address dhcp setroute ! interface GigabitEthernet0/1 description OSPF Internal Network nameif inside security-level 100 ip address 192.168.120.1 255.255.255.0 nat (inside,outside) after-auto source dynamic any interface ! router ospf 1 router-id 192.168.120.1 log-adj-changes detail edit: whoops. Fixed. can ping 8.8.8.8 from vlan 20 device on switch can ping 8.8.8.8 from switch can ping 8.8.8.8 from ASA Ok, so to see if the ISP will give this thing a goddamn IP. [update] So I can indeed get a DHCP IP from my ISP. Unfortunately, I lose connectivity from my 172.20 networks to the web. Also, as a stop-gap, I attempted to set up a DMZ to allow my google wifi to pass through. That went swimmingly.... so my ASA is back offline, and I'm back on the google wifi only. Questions: Is there anything screaming out "I'm why its not working!" Suggested setup for having google wifi on the DMZ? I figured I could just set the DMZ to 0 security with the outside interface, allow traffic between equally leveled interfaces, set up an access rule from DMZ to outside/outside to DMZ, set up a NAT rule for it, and badaboom, it would work. But it didn't work. [link] [comments]  |
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