{"id":30017,"date":"2019-10-31T21:33:15","date_gmt":"2019-10-31T18:33:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/vmware-nsx-dlya-samyh-malenkih-chast-4-nastrojka-marshrutizatsii\/"},"modified":"2019-10-31T21:33:15","modified_gmt":"2019-10-31T18:33:15","slug":"vmware-nsx-dlya-samyh-malenkih-chast-4-nastrojka-marshrutizatsii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/en\/blog\/vmware-nsx-dlya-samyh-malenkih-chast-4-nastrojka-marshrutizatsii","title":{"rendered":"VMware NSX for the smallest. Part 4. Setting Up Routing","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"VMware
\n
\nPart One. Introduction<\/a><\/noindex>
\nPart Two. Configuring Firewall and NAT Rules<\/a><\/noindex>
\nPart Three. DHCP Configuration<\/a><\/noindex><\/p>\n

NSX Edge supports static and dynamic (OSPF, BGP) routing.<\/p>\n

The initial setup<\/a><\/noindex>
\nStatic Routing<\/a><\/noindex>
\nOSPF<\/a><\/noindex>
\nBGP<\/a><\/noindex>
\nRoute Redistribution<\/a><\/noindex>\n<\/p><\/blockquote>\n

<\/a><\/noindex>
\nTo configure routing, go to the section in vCloud Director Administration<\/b> and click on the virtual data center. In the horizontal menu, select the tab Edge Gateways<\/b>. Right-click on the desired network and select the option Edge Gateway Services<\/b>.
\n\"VMware
\n
\nGo to the Routing menu.
\n\"VMware
\n
\n<\/a><\/noindex><\/p>\n

Initial Setup (Routing Configuration)<\/h3>\n

\nIn this tab, you can:
\n \u2014 activate the ECMP option, allowing up to 8 equal-cost routes to be established in the RIB.
\n\"VMware
\n
\n \u2014 modify or disable the default route.
\n\"VMware
\n
\n \u2014 select the Router-ID. You can choose the address of the external interface as the Router-ID. Without specifying a Router-ID, it is impossible to initiate OSPF or BGP processes.
\n\"VMware
\n
\nOr add your own by clicking +.
\n\"VMware
\n\"VMware
\n
\nSave the configuration.
\n\"VMware
\n
\nDone.
\n\"VMware
\n
\n<\/a><\/noindex><\/p>\n

Configuring Static Routing<\/h3>\n

\nGo to the Static Routing tab and click +.
\n\"VMware
\n
\nTo add a static route, fill in the following mandatory fields:
\n \u2014 Network \u2013 destination network;
\n \u2014 Next Hop \u2013 IP address of the host\/router through which the traffic will pass to the destination network;
\n \u2014 Interface \u2013 the interface behind which the desired Next Hop is located.
\nClick Keep.
\n\"VMware
\n
\nSave the configuration.
\n\"VMware
\n
\nDone.
\n\"VMware
\n
\n<\/a><\/noindex><\/p>\n

Configuring OSPF<\/h3>\n

\nGo to the OSPF tab. Enable the OSPF process.
\nIf necessary, disable Graceful Restart, which is enabled by default. Graceful Restart is a protocol that allows traffic forwarding to continue during the convergence of the control plane.
\nYou can also activate the default route advertisement, if it exists in the RIB \u2014 the default originate option.
\n\"VMware
\n
\nNext, add an Area. By default, Area 0 is added. NSX Edge supports 3 types of Area:
\n \u2014 Backbone area (area 0+Normal);
\n \u2014 Standard area (Normal);
\n \u2014 Not-so-stubby area (NSSA).<\/p>\n

Click + in the Area Definition field to add a new Area.
\n\"VMware
\n
\nIn the pop-up window, specify the following mandatory fields:
\n \u2014 Area ID;
\n \u2014 Area type.
\n\"VMware
\n
\nIf necessary, configure authentication. NSX Edge supports two types of authentication: clear text (password) and MD5.
\n\"VMware
\n
\nClick Keep.
\n\"VMware
\n
\nSave the configuration.
\n\"VMware
\n
\nNow add the interfaces on which OSPF adjacency will be established. To do this, click + in the Interface Mapping field.
\n\"VMware
\n
\nIn the pop-up window, specify the following parameters:
\n \u2014 Interface \u2013 the interface to be used in the OSPF process;
\n \u2014 Area ID;
\n \u2014 Hello\/Dead interval \u2013 the protocol timers;
\n \u2014 Priority \u2013 the priority needed for selecting DR\/BDR;
\n \u2014 Cost \u2013 the metric needed to calculate the best path. Click Keep.
\n\"VMware
\n
\n\"VMware
\n
\nLet's add NSSA Area to our router.
\n\"VMware
\n
\n\"VMware
\n
\nSave the configuration.
\n\"VMware
\n
\nIn the screenshot below, we see:
\n1. established sessions;
\n2. established routes in RIB.<\/p>\n

\"VMware
\n
\n<\/a><\/noindex><\/p>\n

BGP Configuration<\/h3>\n

\nGo to the BGP tab.
\n\"VMware
\n
\nWe enable the BGP process.
\nIf necessary, disable Graceful Restart, which is enabled by default. Here you can also activate the default route announcement, even if it is not present in the RIB \u2014 the Default Originate option.
\nSpecify the AS of our NSX Edge. Support for 4-byte AS is available only from NSX version 6.3.
\n\"VMware
\n
\nTo add peer Neighbors, click +.
\n\"VMware
\n
\nIn the pop-up window, specify the following parameters:
\n \u2014 IP Address \u2013 the BGP peer address;
\n \u2014 Remote AS \u2013 the AS number of the BGP peer;
\n \u2014 Weight \u2013 a metric to control outbound traffic;
\n \u2014 Keep Alive\/Hold Down Time \u2013 protocol timers.
\n\"VMware
\n
\nNext, we will configure BGP Filters. For eBGP sessions, all announced and received prefixes on this router are filtered by default, except for the default route. It is announced using the default originate option.
\nClick + to add a BGP Filter.
\n\"VMware
\n
\nConfigure the filter for outbound updates.
\n\"VMware
\n
\nConfigure the filter for inbound updates.
\n\"VMware
\n
\nClick Keep to finish the configuration.
\n\"VMware
\n
\nSave the configuration.
\n\"VMware
\n
\nDone.
\n\"VMware
\n
\nIn the screenshot below, we see:
\n1. established session.
\n2. received prefixes (4 prefixes \/24) from the BGP peer.
\n3. default route announcement. The prefix 172.20.0.0\/24 is not announced, as it is not added to BGP.
\n\"VMware
\n
\n<\/a><\/noindex><\/p>\n

Route Redistribution Configuration<\/h3>\n

\nGo to the Route Redistribution tab.
\n\"VMware
\n
\nEnable route import for the protocol (BGP or OSPF).
\n\"VMware
\n
\nTo add an IP prefix, click +.
\n\"VMware
\n
\nSpecify the name of the IP prefix and the prefix itself.
\n\"VMware
\n
\n\"VMware
\n
\nLet's configure the Route Distribution Table. Click +.
\n\"VMware
\n
\n \u2014 Prefix Name \u2014 select the prefix we will import into the corresponding protocol.
\n \u2014 Learner Protocol \u2014 the protocol to which we will import the prefix;
\n \u2014 Allow learning \u2014 the protocol from which we export the prefix;
\n \u2014 Action \u2014 the action that will be applied to this prefix.
\n\"VMware
\n
\nSave the configuration.
\n\"VMware
\n
\nDone.
\n\"VMware
\n
\nIn the screenshot below, you can see that the corresponding announcement has appeared in BGP.
\n\"VMware
\n
\nThat\u2019s all I have about routing with NSX Edge. Feel free to ask if anything remains unclear. Next time, we'll tackle the load balancer.
\n
Source: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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