Why does ufw always block the SCTP protocol, regardless of what rules I have?
1
ufw seems to always block the SCTP protocol whatever rules I have set up:
For example, running enabled even with no rules:
ufw reset
ufw default allow incoming
ufw enable
I still see SCTP blocked
tail -f /var/log/syslog | grep BLOCK
Jan 15 20:34:38 localhost kernel: [496837.640863] [UFW BLOCK] IN=enp1s0f1 OUT= MAC=ec:0d:9a:9e:b2:2f:ec:0d:9a:c0:01:0d:08:00 SRC=192.168.139.1 DST=192.168.20.2 LEN=80 TOS=0x1A PREC=0xA0 TTL=63 ID=16 DF PROTO=132
Jan 15 20:34:44 localhost kernel: [496844.220995] [UFW BLOCK] IN=enp1s0f1 OUT= MAC=ec:0d:9a:9e:b2:2f:ec:0d:9a:c0:01:0d:08:00 SRC=192.168.139.1 DST=192.168.20.2 LEN=52 TOS=0x1A PREC=0xA0 TTL=63 ID=17 DF PROTO=132
linux firewall ufw sctp
asked Jan 15 at 20:37
rupellorupello
3152412
add a comment |
1
ufw seems to always block the SCTP protocol whatever rules I have set up:
For example, running enabled even with no rules:
ufw reset
ufw default allow incoming
ufw enable
I still see SCTP blocked
tail -f /var/log/syslog | grep BLOCK
Jan 15 20:34:38 localhost kernel: [496837.640863] [UFW BLOCK] IN=enp1s0f1 OUT= MAC=ec:0d:9a:9e:b2:2f:ec:0d:9a:c0:01:0d:08:00 SRC=192.168.139.1 DST=192.168.20.2 LEN=80 TOS=0x1A PREC=0xA0 TTL=63 ID=16 DF PROTO=132
Jan 15 20:34:44 localhost kernel: [496844.220995] [UFW BLOCK] IN=enp1s0f1 OUT= MAC=ec:0d:9a:9e:b2:2f:ec:0d:9a:c0:01:0d:08:00 SRC=192.168.139.1 DST=192.168.20.2 LEN=52 TOS=0x1A PREC=0xA0 TTL=63 ID=17 DF PROTO=132
linux firewall ufw sctp
asked Jan 15 at 20:37
rupellorupello
3152412
1
Are you using NAPT?
– Ron Maupin
Jan 15 at 20:40
@RonMaupin Not as far as I know - SCTP is coming into my network via an IPSEC VPN (StrongSwan)
– rupello
Jan 15 at 20:44
2
didn't find a solution to this as it seems ufw simply does not support sctp - I switched to using iptables rules directly
– rupello
Jan 15 at 22:13
add a comment |
1
1
1
ufw seems to always block the SCTP protocol whatever rules I have set up:
For example, running enabled even with no rules:
ufw reset
ufw default allow incoming
ufw enable
I still see SCTP blocked
tail -f /var/log/syslog | grep BLOCK
Jan 15 20:34:38 localhost kernel: [496837.640863] [UFW BLOCK] IN=enp1s0f1 OUT= MAC=ec:0d:9a:9e:b2:2f:ec:0d:9a:c0:01:0d:08:00 SRC=192.168.139.1 DST=192.168.20.2 LEN=80 TOS=0x1A PREC=0xA0 TTL=63 ID=16 DF PROTO=132
Jan 15 20:34:44 localhost kernel: [496844.220995] [UFW BLOCK] IN=enp1s0f1 OUT= MAC=ec:0d:9a:9e:b2:2f:ec:0d:9a:c0:01:0d:08:00 SRC=192.168.139.1 DST=192.168.20.2 LEN=52 TOS=0x1A PREC=0xA0 TTL=63 ID=17 DF PROTO=132
linux firewall ufw sctp
asked Jan 15 at 20:37
rupellorupello
3152412
ufw seems to always block the SCTP protocol whatever rules I have set up:
For example, running enabled even with no rules:
ufw reset
ufw default allow incoming
ufw enable
I still see SCTP blocked
tail -f /var/log/syslog | grep BLOCK
Jan 15 20:34:38 localhost kernel: [496837.640863] [UFW BLOCK] IN=enp1s0f1 OUT= MAC=ec:0d:9a:9e:b2:2f:ec:0d:9a:c0:01:0d:08:00 SRC=192.168.139.1 DST=192.168.20.2 LEN=80 TOS=0x1A PREC=0xA0 TTL=63 ID=16 DF PROTO=132
Jan 15 20:34:44 localhost kernel: [496844.220995] [UFW BLOCK] IN=enp1s0f1 OUT= MAC=ec:0d:9a:9e:b2:2f:ec:0d:9a:c0:01:0d:08:00 SRC=192.168.139.1 DST=192.168.20.2 LEN=52 TOS=0x1A PREC=0xA0 TTL=63 ID=17 DF PROTO=132
linux firewall ufw sctp
linux firewall ufw sctp
asked Jan 15 at 20:37
rupellorupello
3152412
asked Jan 15 at 20:37
rupellorupello
3152412
asked Jan 15 at 20:37
rupellorupello
3152412
asked Jan 15 at 20:37
rupellorupello
3152412
asked Jan 15 at 20:37
rupellorupello
3152412
3152412
1
Are you using NAPT?
– Ron Maupin
Jan 15 at 20:40
@RonMaupin Not as far as I know - SCTP is coming into my network via an IPSEC VPN (StrongSwan)
– rupello
Jan 15 at 20:44
2
didn't find a solution to this as it seems ufw simply does not support sctp - I switched to using iptables rules directly
– rupello
Jan 15 at 22:13
add a comment |
1
Are you using NAPT?
– Ron Maupin
Jan 15 at 20:40
@RonMaupin Not as far as I know - SCTP is coming into my network via an IPSEC VPN (StrongSwan)
– rupello
Jan 15 at 20:44
2
didn't find a solution to this as it seems ufw simply does not support sctp - I switched to using iptables rules directly
– rupello
Jan 15 at 22:13
1
1
Are you using NAPT?
– Ron Maupin
Jan 15 at 20:40
Are you using NAPT?
– Ron Maupin
Jan 15 at 20:40
@RonMaupin Not as far as I know - SCTP is coming into my network via an IPSEC VPN (StrongSwan)
– rupello
Jan 15 at 20:44
@RonMaupin Not as far as I know - SCTP is coming into my network via an IPSEC VPN (StrongSwan)
– rupello
Jan 15 at 20:44
2
2
didn't find a solution to this as it seems ufw simply does not support sctp - I switched to using iptables rules directly
– rupello
Jan 15 at 22:13
didn't find a solution to this as it seems ufw simply does not support sctp - I switched to using iptables rules directly
– rupello
Jan 15 at 22:13
add a comment |
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1
Are you using NAPT?
– Ron Maupin
Jan 15 at 20:40
@RonMaupin Not as far as I know - SCTP is coming into my network via an IPSEC VPN (StrongSwan)
– rupello
Jan 15 at 20:44
2
didn't find a solution to this as it seems ufw simply does not support sctp - I switched to using iptables rules directly
– rupello
Jan 15 at 22:13