Достаточно логов, куска конфига, выдержки из tcpdump. Иначе это просто "Помогите! Мне очень плохо!"
Так не бывает, что у всех параметр ignoreip работает, а у вас - нет. И это точно не проблема Астериск.
https://www.linode.com/docs/security/us ... -security/
Whitelist IPPermalink
To ignore specific IPs, add them to the ignoreip line. By default, this command will not ban the localhost. If you work from a single IP address often, it may be beneficial to add it to the ignore list:
/etc/fail2ban/jail.local
[DEFAULT]
# "ignoreip" can be an IP address, a CIDR mask or a DNS host. Fail2ban will not
# ban a host which matches an address in this list. Several addresses can be
# defined using space separator.
ignoreip = 127.0.0.1/8 123.45.67.89
If you wish to whitelist IPs only for certain jails, this can be done with the fail2ban-client command. Replace JAIL with the name of your jail, and 123.45.67.89 with the IP you wish to whitelist.
fail2ban-client set JAIL addignoreip 123.45.67.89