# OSPFv3 Prefix Suppression

**URL:** https://forum.networklessons.com/t/ospfv3-prefix-suppression/2369
**Category:** Lessons Discussion
**Created:** [November 6, 2017, 1:07pm UTC](https://forum.networklessons.com/t/ospfv3-prefix-suppression/2369 "2017-11-06T13:07:01Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![lagapidis](https://cdn-forum.networklessons.com/user_avatar/forum.networklessons.com/lagapidis/32/4949_2.png) [@lagapidis](https://forum.networklessons.com/u/lagapidis)
#### Post date: [July 12, 2018, 2:51pm UTC](https://forum.networklessons.com/t/ospfv3-prefix-suppression/2369/3 "2018-07-12T14:51:08Z")

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Hello Vinod

Prefix suppression commands, like any other commands, depend on the IOS being used. Because GNS uses reali IOS files, it should support any feature supported by the IOS in question. Make sure that the version you are using supports the commands you’re looking for.

According to the following link, the prefix-suppression command was untridyced to the IOS from version 12.4(15)T and was integrated into Cisco IOS XE Release 2.6.

> **[Cisco IOS IP Routing: OSPF Command Reference - OSPF Commands: ip ospf...](https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/command/iro-cr-book/ospf-i1.html#wp2393884973)**
>
> Hardcoded placeholder description!

The corresponding interface command `ip ospf prefix-suppression` was also introduced in the same IOS versions.

> **[Cisco IOS IP Routing: OSPF Command Reference - OSPF Commands: ip ospf...](https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_ospf/command/iro-cr-book/ospf-i1.html#wp1334838385)**
>
> Hardcoded placeholder description!

I hope this has been helpful!

Laz

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