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Tharaka Devinda
Asked: 2021-10-16 02:06:05 +0800 CST

SCTP not usable even after installing lksctp-tools

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I am running Red hat version 8. I installed lksctp-tools and checksctp returns "Protocol not supported"

I tried installing kernel-modules-extra as well. No luck. Restarted the server every time I installed these and checked.

Found these documents which say SCTP should be blocked and disabled in linux unless needed. Says must disable SCTP Says must block SCTP even if its installed.

I un-blocked it by commenting out the sctp_blacklist.conf, no luck. (Rebooted and tried.) I enabled ipv6, tested, restarted and re-tested. Still checksctp gives the same issue.

modprobe gives no error but module is not getting loaded.

[root@app01-p net]# uname -a
Linux app01-p 4.18.0-305.19.1.el8_4.x86_64 #1 SMP Tue Sep 7 07:07:31 EDT 2021 x86_64 x86_64 x86_64 GNU/Linux
[root@app01-p net]# 
[root@app01-p net]# modinfo sctp
filename:       /lib/modules/4.18.0-305.19.1.el8_4.x86_64/kernel/net/sctp/sctp.ko.xz
license:        GPL
description:    Support for the SCTP protocol (RFC2960)
author:         Linux Kernel SCTP developers <[email protected]>
alias:          net-pf-10-proto-132
alias:          net-pf-2-proto-132
rhelversion:    8.4
srcversion:     306E44C4A6F5501050C98E5
depends:        libcrc32c
intree:         Y
name:           sctp
vermagic:       4.18.0-305.19.1.el8_4.x86_64 SMP mod_unload modversions 
sig_id:         PKCS#7
signer:         Red Hat Enterprise Linux kernel signing key
sig_key:        6A:34:A3:C0:30:AF:24:58:38:BA:F1:FB:5C:05:9E:26:3B:EE:D8:25
sig_hashalgo:   sha256
signature:      15:27:23:A9:8E:51:F4:2F:31:E0:98:62:05:B5:D4:16:BB:84:23:79:
        73:8F:28:1A:9E:CD:89:21:13:BA:23:D1:F1:AF:92:F9:0C:A3:29:DC:
        BA:14:D1:8D:06:8C:CE:09:A0:AB:4F:BC:DF:99:28:0C:8A:E5:A4:B7:
        81:D0:0A:CE:95:C8:EE:17:55:38:B3:8C:32:C4:F6:44:0B:C3:7B:87:
        ED:F1:D6:B0:75:E6:40:70:6F:19:0A:5E:BA:44:98:12:5E:4D:21:27:
        C8:7D:D8:4E:14:96:99:42:A0:6A:43:D3:B1:4A:09:07:09:9A:25:30:
        83:70:E3:CB:91:D5:0A:A5:0C:47:9A:68:EB:58:64:26:39:65:78:CD:
        28:1D:0A:3A:62:80:8C:F2:4E:9C:46:20:DB:C2:67:22:70:EE:5E:61:
        31:B4:A4:D7:FB:C5:F9:08:8D:BD:49:84:91:58:2A:B9:F7:2F:D4:3A:
        31:89:ED:76:24:5D:D0:21:B3:B8:CC:E3:08:F1:F2:DD:47:45:0F:66:
        F8:C2:9F:82:6A:65:0D:C7:3A:6A:5E:81:64:30:4D:BF:D3:88:8F:8E:
        AD:39:FB:15:C3:FF:A6:06:6B:BD:CE:90:EF:AA:0F:80:CF:A0:80:43:
        B9:6D:AF:D7:65:46:94:A7:C7:7D:7B:14:1E:9A:98:93:77:98:6C:73:
        EB:77:0B:F7:17:B6:D5:3B:0F:43:C0:E5:F1:F6:F2:63:15:27:38:E0:
        C9:03:73:38:F3:EC:8D:26:78:D8:90:10:5D:C9:05:D3:29:29:B9:8E:
        9F:7A:66:DA:4A:D9:AE:F4:D6:B4:1E:B7:D3:E3:2A:65:44:A4:A9:60:
        D6:CE:87:C7:52:D7:84:65:D1:3A:E7:E8:AE:C7:13:FF:FC:13:C2:C4:
        35:CA:55:D4:D2:17:40:1E:DB:D0:04:8B:4C:14:6B:F9:55:D3:55:CA:
        AE:68:FC:54:20:85:7F:65:FF:8A:1E:81:30:BA:EB:E6:D4:BA:75:8F:
        2E:88:A4:DA
parm:           no_checksums:Disable checksums computing and verification (bool)
[root@app01-p net]# 
[root@app01-p net]# 
[root@app01-p net]# modprobe sctp
[root@app01-p net]# 
[root@app01-p net]# checksctp
checksctp: Protocol not supported

Does anyone know how to get SCTP enabled in this RHEL 8 server?

redhat sctp

0 Answers