# Can I use IPV6 address in SNMP node's Host field?

**URL:** <https://discourse.nodered.org/t/can-i-use-ipv6-address-in-snmp-nodes-host-field/84400>\
**Category:** General\
**Created:** [8 January 2024 22:04 UTC](https://discourse.nodered.org/t/can-i-use-ipv6-address-in-snmp-nodes-host-field/84400 "2024-01-08T22:04:01Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![heyhogan](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/heyhogan/32/13897_2.png) [@heyhogan](https://discourse.nodered.org/u/heyhogan)\
**Post date:** [8 January 2024 22:04 UTC](https://discourse.nodered.org/t/can-i-use-ipv6-address-in-snmp-nodes-host-field/84400/1 "2024-01-08T22:04:01Z")

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I have an SNMP node set up and working with V3 to an IPV4 device. I am now trying to get the same result but to the IPV6 address for the device. I get the error "Error: getaddrinfo ENOTFOUND FD15"

So do I need to format the IPV6 address a certain way or does this node not support IPV6?

Some more details:::  
I have the device's IPV6 address which is fd15:4305:b3dc:7fb:20f:9cff:fe01:1598 (IPV4 is 192.168.15.39). NodeRed is running on a linux based machine which has the following setting from ifconfig " inet 192.168.15.238 netmask 255.255.255.0 broadcast 192.168.15.255  
inet6 fd15:4305:b3dc:7fb:fdd2:9c45:756f:dea8 prefixlen 64 scopeid 0x0  
inet6 fe80::5fc:28c5:1217:f3a2 prefixlen 64 scopeid 0x20  
ether 00:0c:29:3b:15:4f txqueuelen 1000 (Ethernet)  
RX packets 49077536 bytes 6428688761 (5.9 GiB)  
RX errors 0 dropped 5279420 overruns 0 frame 0"

so it appears to me both can use IPV6. PING -6 from NodeRed server to device works.

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<div class="post-metadata">

**Author:** ![heyhogan](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/heyhogan/32/13897_2.png) [@heyhogan](https://discourse.nodered.org/u/heyhogan)\
**Post date:** [8 January 2024 22:09 UTC](https://discourse.nodered.org/t/can-i-use-ipv6-address-in-snmp-nodes-host-field/84400/2 "2024-01-08T22:09:47Z")

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I've tried both the IPV6 address "fd15:4305:b3dc:7fb:20f:9cff:fe01:1598" (no "s around it) as well as a version with "[]" around it like this: [fd15:4305:b3dc:7fb:20f:9cff:fe01:1598] in the Host field. Neither worked.

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [8 January 2024 23:38 UTC](https://discourse.nodered.org/t/can-i-use-ipv6-address-in-snmp-nodes-host-field/84400/3 "2024-01-08T23:38:55Z")

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> [@heyhogan](#):
>
> ENOTFOUND FD15

Looks like it is splitting on colon (as if it a port number that follows an ipv4/hostname)

[Which package](https://flows.nodered.org/search?term=Snmp&type=node) is it?

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [8 March 2024 23:39 UTC](https://discourse.nodered.org/t/can-i-use-ipv6-address-in-snmp-nodes-host-field/84400/4 "2024-03-08T23:39:16Z")

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