Date: Fri, 25 Oct 2019 14:36:07 +0300 From: "Andrey V. Elsukov" <bu7cher@yandex.ru> To: Victor Gamov <vit@otcnet.ru>, freebsd-net@freebsd.org, "Alexander V. Chernikov" <melifaro@freebsd.org> Subject: Re: icmp v4 redirect timeout Message-ID: <7f003ef5-7e28-d179-5319-eb52a674f2b1@yandex.ru> In-Reply-To: <1259e1c9-596f-c379-b58c-b44e76bf963e@otcnet.ru> References: <1259e1c9-596f-c379-b58c-b44e76bf963e@otcnet.ru>
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This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --9w2uf8J3TXfYC9IJXOeOYHVwPearIB9ia Content-Type: multipart/mixed; boundary="pEBAIpNzWlUAQ6Kmw5FvmcaAAVb7H2dxx"; protected-headers="v1" From: "Andrey V. Elsukov" <bu7cher@yandex.ru> To: Victor Gamov <vit@otcnet.ru>, freebsd-net@freebsd.org, "Alexander V. Chernikov" <melifaro@freebsd.org> Message-ID: <7f003ef5-7e28-d179-5319-eb52a674f2b1@yandex.ru> Subject: Re: icmp v4 redirect timeout References: <1259e1c9-596f-c379-b58c-b44e76bf963e@otcnet.ru> In-Reply-To: <1259e1c9-596f-c379-b58c-b44e76bf963e@otcnet.ru> --pEBAIpNzWlUAQ6Kmw5FvmcaAAVb7H2dxx Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 22.10.2019 17:30, Victor Gamov wrote: > Hi All >=20 > I discover the following problem: FreeBSD host install route recived by= > ICMP-redirect from default GW and this route is permanents. >=20 >=20 > In my case FreeBSD 192.168.1.10/24 has 192.168.1.254 as default gateway= =2E > This network has interconnection with remote network 192.168.88.0/24 vi= a > some other gateways -- 192.168.1.199 + 192.168.1.195 for example.=C2=A0= All > gateways=C2=A0 using OSPF to exchange routing info. >=20 > 192.168.1.10 send packet destined to remote network (192.168.88.0/24) t= o > default gateway 192.168.1.254, receive ICMP-redirect and install route > to 192.168.88.0/24 via 192.168.1.199.=C2=A0 Then 192.168.1.199 off for = some > reason but 192.168.1.10 never know about it because route installed via= > 192.168.1.199 is permanent. >=20 > I see net.inet6.icmp6.redirtimeout in my FreeBSD 11.2-STABLE #0 r339734= > and I think this sysctl set timeout for routes installed via > ICMP-redirects (route deletes after this timeout?). >=20 > Is it possible to get such sysctl for ipv4 ? I think expiring doesn't work for IPv6 too. At least, I didn't find related code from a quick look. --=20 WBR, Andrey V. Elsukov --pEBAIpNzWlUAQ6Kmw5FvmcaAAVb7H2dxx-- --9w2uf8J3TXfYC9IJXOeOYHVwPearIB9ia Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/ iQEzBAEBCAAdFiEE5lkeG0HaFRbwybwAAcXqBBDIoXoFAl2y3icACgkQAcXqBBDI oXrcKQf/futE6ubBSeVKtuL2SGo8E5C/e6Y9rigyUbuJywPRU2RYB2wodrYqbU+i zuWcjtA95KAY1/0g8BFVOfeQuP3uZXQL1pED8KbfrmaG1h+fqyZ+PB0v1k4sV7sj qBB7wdmpqj3NNws9kIeH7uMezIom3PSkL0CBrkR/nhwnWv6AhAKuZifPKuXRuRY+ 8Dvc2j4jLyd6p0GULejaY7f2dZNW3z9FHfHc99zDtzuxFxDiLwN5L1wwTXZjdIlq UR7/ZWq/4EzUD7BJ17c67ota//AI42yghvloAMhf/+XZ9Ou+WimbQwJgjByG1JY7 ujruXlOdVZyp68I6Z4O4tgAcIkbKlA== =SJ/8 -----END PGP SIGNATURE----- --9w2uf8J3TXfYC9IJXOeOYHVwPearIB9ia--
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