r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
ioctl$sock_inet6_SIOCDELRT(r0, 0x890c, &(0x7f0000000080)={@rand_addr=' \x01\x00', @private0, @private0, 0x0, 0x1ff, 0x0, 0x0, 0x0, 0x1000020})